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An SSID (Service Set Identifier) is the name your wireless router broadcasts so nearby devices can find and connect to your Wi-Fi network. It’s the label you see when you open your Wi-Fi settings, things like “Netgear54” or “HomeWiFi_5G.” Every device on your network relies on this name to know which signal belongs to you.

You’ve seen an SSID a hundred times without realizing it. But here’s the thing: it isn’t just a label. It plays a real role in how your devices connect, how secure your home network is, and how easily strangers can identify your setup. Let’s break this down properly.

What Does SSID Actually Stand For?

SSID stands for Service Set Identifier, and according to the IEEE 802.11 wireless standard, it’s a unique text string that identifies a specific wireless network.

Think of the 802.11 standard as the rulebook every Wi-Fi device follows. It’s what makes sure your iPhone, your laptop, and your smart fridge can all understand each other on the same network, regardless of who made them.

An SSID can be made up of letters, numbers, dashes, periods, and even spaces. It’s case-sensitive too, which trips a lot of people up. “HomeWiFi” and “homewifi” are treated as two completely different networks by your devices.

There’s a hard limit here: an SSID can be a maximum of 32 characters, per the 802.11 standard as confirmed by whatismyip.com. No exceptions. So if you’re planning to rename your network to something clever, you’ve got 32 characters to work with.

Where Does the SSID Come From?

Your router or access point generates and broadcasts the SSID automatically the moment it powers on. It doesn’t need you to do anything.

Most manufacturers set a default SSID before the device leaves the factory. That’s why you’ll see names like “TP-Link_4A2B” or “ASUS_Guest” out of the box. It’s just the brand name plus a random string, printed on a sticker on the bottom of the router.

How Does an SSID Actually Work?

An SSID gets broadcast through a beacon frame, a small signal your router sends out at regular intervals to announce its presence. According to WhatIsMyIP’s technical breakdown, this broadcast happens through beacon frames sent as defined by the IEEE 802.11 standard.

Your phone or laptop picks up these beacon frames constantly in the background. That’s how your Wi-Fi list populates when you tap the Wi-Fi icon. Every network you see is broadcasting its SSID over and over, dozens of times per second.

Once you tap a network, your device sends a connection request. If the network is secured, you’ll need a password, or in enterprise setups, 802.1X authentication. Once that handshake completes, you’re on.

Visible vs. Hidden SSID

Most routers broadcast their SSID publicly. That’s a visible SSID, and it’s why you can open your settings and pick your network from a list without typing anything.

A hidden SSID stops announcing its name to the world. To connect, you have to manually type the exact network name yourself.

Hiding your SSID feels like a security move, but it’s mostly cosmetic. According to NordVPN’s breakdown, hiding your SSID gives you a small privacy bump at best. Anyone using basic network scanning tools can still detect hidden networks. Don’t rely on this alone for security.

SSID vs BSSID: What’s the Difference?

SSID is the network name you see and interact with. BSSID (Basic Service Set Identifier) is the actual MAC address of the specific access point radio broadcasting that name.

Picture a chain of coffee shops, all called “Bean There.” That’s your SSID: one name, shared across every location. Each individual shop has its own street address though. That’s your BSSID.

Here’s a side-by-side breakdown:

If you’ve got a mesh Wi-Fi system with three access points spread around your house, all using the SSID “MyHomeNetwork,” each of those three access points still has its own unique BSSID under the hood, per IT GOAT’s mesh network analysis. Your devices use the BSSID behind the scenes to figure out which physical access point gives the strongest signal, even though you only ever see one SSID.

This distinction matters for anyone getting into networking, IT support, or wardriving research, where identifying the exact physical device matters more than the friendly name.

SSIDs and Frequency Bands (2.4GHz vs 5GHz)

Most modern routers broadcast two separate SSIDs, one for each frequency band they support. You’ll typically see something like “HomeWiFi” for the 2.4GHz band and “HomeWiFi_5G” for the 5GHz band.

The 2.4GHz band reaches farther through walls but runs slower. The 5GHz band is faster but has a shorter range. Some newer routers merge both bands under a single SSID and let the router decide which band each device connects to, a feature usually called “band steering.”

If you see two networks from the same router, that’s normal. Pick whichever gives you a stronger signal for the device you’re using.

Why Your SSID Matters More Than You Think

Your SSID isn’t just cosmetic. It affects your day-to-day Wi-Fi experience in a few concrete ways.

• It prevents connection confusion. If two nearby networks share the same SSID, your device might latch onto the weaker signal without you realizing it, as Reolink notes in its SSID guide.
• It’s your first line of network hygiene. A default SSID broadcasting your router’s brand and model tells anyone nearby exactly what hardware you’re running.
• It shapes how you manage multiple networks. A guest network, an IoT network, and your main household network are much easier to keep straight with distinct names.

How to Find Your SSID (Step-by-Step)

Check Physical and On-Device Sources

1. Check the router sticker. Flip your router over. Most list the default network name and password right there.
2. Open your device’s Wi-Fi settings. On Windows, click the Wi-Fi icon in the taskbar. On Mac, click the Wi-Fi icon in the menu bar. On mobile, go to Settings > Wi-Fi.
3. Look at your currently connected network. It’s usually labeled “Connected” above or below the name.

Check the Router Admin Panel

4. Log into your router’s admin panel if you’ve changed the SSID and forgotten it. Type your router’s IP address (often 192.168.1.1 or 192.168.0.1) into a browser, log in, and check the wireless settings tab.
5. Use a network scanning app like inSSIDer or WiFi Explorer if you want to see every SSID broadcasting nearby, not just your own.

How to Change Your SSID (And Why You Should)

Changing your SSID is one of the easiest security upgrades available, and most people never bother.

1. Log into your router’s admin panel using its IP address.
2. Navigate to the Wireless or Wi-Fi Settings section.
3. Find the field labeled “SSID” or “Network Name.”
4. Type in your new name. Keep it under 32 characters, and avoid personal information like your last name or address.
5. Save the settings and reconnect all your devices using the new name.

Don’t get too clever here. Something memorable but not personally identifying works best. Skip anything that reveals your address, apartment number, or full name.

Common SSID Mistakes to Avoid

• Keeping the default SSID. It broadcasts your router’s brand and model, making targeted attacks easier.
• Using personal information in the name. Your name, apartment number, or phone number has no business being part of a network name.
• Relying only on a hidden SSID for security. As covered above, this offers minimal protection on its own.
• Duplicating another nearby SSID. This causes connection confusion for both networks.
• Skipping a strong password because the SSID feels “secure enough.” The SSID and the password do completely different jobs. Don’t confuse the two.

For a deeper walkthrough on locking down your whole home network, not just the name, check out our Checksum Error guide if you’re troubleshooting broader connectivity issues, or our Dropbox connection error guide if renaming your SSID triggered sync errors on connected apps.

Frequently Asked Questions

Can two networks have the same SSID?

Yes, technically two networks can share an SSID. But devices might struggle to tell them apart, sometimes connecting to the weaker or wrong one automatically.

Does changing my SSID disconnect my devices?

Yes, temporarily. Every device connected to the old network name needs to reconnect using the new name and password.

Is a hidden SSID more secure?

Only slightly. It adds minor privacy, but skilled attackers can still detect hidden networks with the right tools.

What’s the maximum SSID length?

32 characters, per the 802.11 standard. There’s no strict minimum.

Should I use my real name as my SSID?

No. Skip anything personally identifiable. Pick something memorable but generic instead.

Why do I see two SSIDs from one router?

Most routers broadcast separate SSIDs for the 2.4GHz and 5GHz bands. Some merge them into one name using band steering.

Wrapping This Up

Your SSID is a small piece of your network’s identity, but it carries more weight than most people give it credit for. It’s how your devices find your network, how you distinguish your Wi-Fi from your neighbor’s, and it’s one of the easiest things you can tweak to strengthen your home network’s security posture.

Take five minutes today. Log into your router, check your current SSID, and change it if it’s still sitting on the factory default. Small step, but it genuinely matters.

PMO most commonly means “piss me off” in texting and social media slang, but it can also stand for “put me on,” “private message only,” or — in a professional setting — “project management office.” I’ve dug through Reddit threads, Urban Dictionary entries, and even a Texas slang study to figure out exactly when people use which meaning. By the end of this guide from SlangDecoded, you’ll never have to guess what PMO means again — whether it shows up in a text from your crush or an email from your boss.

I’ll be honest with you: I didn’t expect this three-letter acronym to have five completely different meanings. But that’s exactly what makes it worth writing about.

If you’re new here, check out our related guide on what the “does not equal” sign means — PMO isn’t the only symbol or acronym causing confusion this year.

Why PMO Confuses So Many People

Here’s the thing about internet slang — it almost never means just one thing anymore, and PMO is a textbook example of that chaos.

A recent slang confusion study out of Texas actually named PMO as one of the most baffling abbreviations circulating among texters in 2025, right alongside “ICL.” That’s not a small thing. When researchers are studying your slang, you know it’s genuinely tripping people up.

So why does this happen? Honestly, it comes down to a few things:

• Multiple generations use it differently. Gen Z on TikTok means something totally different than a project manager in a Monday standup.
• Platform context changes meaning. PMO on Snapchat isn’t the same as PMO in a corporate Slack channel.
• It evolved from spoken slang. Phrases get compressed into acronyms fast, and the original meaning gets fuzzy.

You really do need context clues — tone, platform, who’s texting you — before you can nail down what someone means. If you’re also curious about texting shortcuts more broadly, our guide on how to put a line through text covers another commonly searched texting formatting question.

The 5 Real Meanings of PMO (Ranked by How Common They Are)

Let me break this down meaning by meaning, because guessing wrong here can actually lead to some awkward misunderstandings.

1. “Piss Me Off” — The Most Common Slang Meaning

This is the one you’ll see the most, hands down.

According to Dictionary.com’s slang entry, PMO functions as an internet slang acronym for “pisses me off,” and it flexes into different verb tenses depending on the sentence. So you might see:

• “This weather PMO so bad.”
• “Nothing PMO more than slow wifi.”
• “I’m pmo’d right now, not gonna lie.”

Wikipedia’s glossary of 2020s slang backs this up too, listing PMO as 2020s slang for “piss me off.” It’s basically the shorthand version of expressing frustration or annoyance without typing out the whole phrase.

Quick tip: if the sentence has a negative or complaining tone, you’re almost certainly looking at this meaning.

2. “Put Me On” — The Slang Request

This one trips people up because it looks nothing like “piss me off” in meaning, but the letters are identical.

Per PlainTextConverter’s breakdown, “put me on” is used as a request for inclusion — someone wants to be introduced to a person, a song, an opportunity, whatever. Examples:

• “PMO with her Snap 👀” — introduce me to her.
• “Bro, PMO with that playlist.” — share it with me.
• “Y’all going to that party? PMO.” — let me come too.

Here’s a cool bit of linguistic history — this phrase actually has roots in African American Vernacular English (AAVE) and hip-hop culture, where “putting someone on” meant introducing them to a lifestyle, a connection, or an opportunity. TikTok and Instagram just compressed it into three letters.

I genuinely think this is one of the more interesting acronym origin stories out there. Slang doesn’t come from nowhere — it comes from somewhere real.

3. “Project Management Office” — The Business Meaning

Okay, pivot completely. This is where PMO stops being slang and starts being a legitimate business term.

Wikipedia’s entry on project management offices defines it as a group or department within a business, government agency, or enterprise that defines and maintains standards for project management across the organization. It’s basically the department responsible for:

• Documentation and templates
• Governance and standards
• Performance metrics
• Keeping projects on time and on budget

If you see PMO in a work email, a LinkedIn post, or a job title, this is almost certainly what’s meant. There’s zero overlap with the slang version — different world entirely.

4. “Private Message Only”

This one’s more niche, but it does show up, especially on group chats and public forums.

Per PMO Meaning’s dictionary page, in text messages, PMO can signal that a conversation should move to private messaging. There’s also a variant, “PMO SM,” which specifically means “private message only on social media” — used when someone wants to take a public conversation into DMs.

You’ll usually catch this meaning in comment sections, forums, or group chats, not one-on-one texts.

5. The NoFap / Self-Discipline Meaning

I want to mention this one briefly because it does exist and people do search for it, but I’m keeping this section short and factual on purpose.

In certain online self-improvement communities, PMO is used as shorthand connected to discussions around habit-tracking and self-discipline — often tied to the “NoFap” movement, as noted by AmazingTalker’s language Q&A. If you come across this usage, it’s almost always in a specific forum context, not in everyday texting between friends.

What Does PMO Mean on Reddit?

On Reddit, PMO carries an extra layer of context you won’t see as much on TikTok or Snapchat.

In subreddits related to slang or texting, it typically follows the same “piss me off” or “put me on” meanings covered above. But in self-improvement and habit-tracking subreddits, PMO is far more likely to refer to the NoFap-related meaning, since those communities use the acronym as shorthand in daily check-in posts and streak trackers.

So the rule of thumb: check which subreddit you’re in before assuming the meaning. A slang subreddit and a self-improvement subreddit will use the same three letters completely differently.

How to Tell Which Meaning Someone’s Using: A Step-by-Step Guide

I know that’s a lot of meanings for three letters. So here’s a quick system I use to figure out context fast.

Step 1: Check the platform. TikTok, Snapchat, and Instagram comments? Lean slang (“piss me off” or “put me on”). LinkedIn, email, or a work Slack? Lean business (project management office).

Step 2: Read the tone of the sentence. Is it complaining or frustrated? That’s “piss me off.” Is it requesting something or asking to be included? That’s “put me on.”

Step 3: Look at who’s texting you. A coworker or manager almost never means slang. A friend, especially a younger one, almost never means the corporate term.

Step 4: Check for emoji or punctuation cues. Something like “PMO 😩” leans frustration. “PMO?? 👀” leans “put me on” — it reads more like a request.

Step 5: When in doubt, just ask. Seriously, there’s no shame in texting back “wait what do you mean by PMO 😅” — texting has zero tone of voice, and misreading it can genuinely cause confusion.

PMO Meaning Comparison Table

Why Knowing PMO’s Meaning Matters for Clear Communication

Look, texting already strips out tone of voice, facial expressions, and body language — that’s just the nature of digital communication. Add a five-meaning acronym into the mix, and it’s honestly a small miracle we understand each other at all.

That’s really why context is everything here. The same three letters can express annoyance, make a request, describe a corporate department, or signal a private conversation — and the only way to know which one is happening is to slow down for half a second and read the room (or the group chat).

If you’re someone who texts across generations — parents texting teens, managers messaging Gen Z employees — this kind of generational slang gap is only going to keep showing up. PMO is just one example of a much bigger pattern in how internet slang evolves. Since PMO shows up so often in TikTok comments and captions, you might also want to check out our guide on TikTok profile pictures if you’re building out your TikTok presence.

Frequently Asked Questions About PMO

What does PMO mean in a text from a girl?

It depends entirely on context, but most commonly it means “piss me off” (expressing frustration) or “put me on” (asking to be included or introduced to something). Check the tone of the surrounding message for the clearest clue.

What does PMO mean on Snapchat?

On Snapchat, PMO usually means “put me on,” as in asking to be introduced to someone or something, like “PMO with her Snap.” It can occasionally mean “pisses me off” depending on tone.

What does PMO mean on Reddit?

On Reddit, PMO usually follows standard slang meanings in general subreddits, but in self-improvement and habit-tracking communities, it typically refers to the NoFap-related meaning instead.

Is PMO the same as IMO?

No. IMO means “in my opinion,” while PMO has multiple unrelated meanings including “piss me off” and “put me on.” They’re easy to confuse visually but mean completely different things.

What does PMO mean in business?

In a professional setting, PMO stands for “project management office” — a department responsible for setting project management standards, documentation, and metrics across an organization.

What does PMO mean on TikTok?

On TikTok, PMO is almost always slang, most often meaning “piss me off,” though “put me on” also appears frequently in comment sections and captions.

Why is PMO considered confusing slang?

Because it has at least five distinct meanings depending on platform, tone, and audience — a factor confirmed by a Texas-based slang study that named it among the most confusing modern text abbreviations.

Does PMO always mean something negative?

No. Only the “piss me off” meaning carries a negative or frustrated tone. “Put me on” is a neutral-to-positive request, and the business meaning is entirely neutral.

What’s the origin of “put me on”? The phrase has roots in African American Vernacular English and hip-hop culture, where it originally meant introducing someone to a lifestyle, opportunity, or connection — later shortened to PMO through social media.

PMO Meaning: Key Takeaways

At the end of the day, PMO is a perfect example of how three letters can carry five completely different meanings depending on where you see them and who’s typing them. Whether it’s slang for frustration, a request to be included, a private messaging cue, or a legitimate business department, context really is the deciding factor every single time.

Next time PMO shows up in your texts, run through the quick checklist — platform, tone, sender, and cues — and you’ll land on the right meaning almost instantly. And if a new acronym trips you up next, SlangDecoded has you covered.

What is a checksum error? It’s your computer telling you that a file, a setting, or a packet of data doesn’t match the fingerprint it’s supposed to match. That’s it. That’s the whole thing. I’ve hit this checksum mismatch message on BIOS screens at 2 a.m., inside half-downloaded ISO files, and in ZFS storage pools carrying data I really didn’t want to lose. So let me walk you through what it means, why it happens, and exactly what to do — no jargon walls, I promise.

Here’s the part most articles skip.

A checksum error is not one problem. It’s four completely different problems that happen to share a name. And if you don’t know which one you’re staring at, you’ll waste an afternoon replacing a battery when your real issue was a flaky Wi-Fi connection.

What Is a Checksum Error, Exactly?

Before we chase fixes, you need the mental model. A checksum is a small value calculated from a chunk of data — think of it as a receipt. You save the receipt. Later, you recalculate it. If the two receipts match, the data almost certainly didn’t change. If they don’t match, something happened in between, and your system throws a checksum error to warn you. Simple idea, enormous consequences.

Now here’s what I love about this concept.

A checksum is a small-sized datum derived from a block of digital data for the purpose of detecting errors — and the integrity of the data gets verified by recomputing that value and comparing it against the stored one.

Think of it like a tamper-evident seal on a bottle of medicine.

The seal doesn’t tell you what went wrong inside. It just tells you the bottle isn’t sealed anymore. Your job is to figure out why.

Detection Versus Correction (This Trips Everyone Up)

I want to kill a myth right now, because it causes real damage. People assume a checksum fixes data. It doesn’t. It flags data. Most error detection methods — parity bits, modular sums, cyclic redundancy checks — are detection-only tools. Correction requires redundancy stored somewhere else. Knowing that difference changes how you respond to a failure, and it changes what you back up.

Here’s the honest limitation.

According to the Wireshark documentation, using a checksum drastically reduces the number of undetected transmission errors — but the usual algorithms cannot guarantee 100% detection, so a very small number of errors slip through.

GeeksforGeeks shows this beautifully with a worked example: when bit errors in two data segments cancel each other out, the total sum stays identical and the corruption goes completely unnoticed.

Rare? Yes. Impossible? Nope.

Checksum Error Quick Diagnosis Table

Start here. Read the message on your screen, find the matching row, and you’ll know within seconds which of the four layers you’re dealing with. I built this table after years of watching people replace perfectly good hardware because they misread the error. Match your symptom first — the fix almost always follows automatically once you’ve identified the layer correctly.

Bookmark that. It saves more time than anything else in this article.

The Four Places You’ll Meet a Checksum Error

This is the section I wish existed when I started troubleshooting. The message looks similar everywhere, but the root cause lives in totally different hardware. I’ve grouped them by layer — firmware, archives and downloads, networking, and storage — so you can identify yours in about ten seconds. Read the four descriptions below, find the one that matches your screen, and skip straight to that fix.

Let’s go one by one.

1. CMOS Checksum Error – Defaults Loaded (The Boot Screen One)

You power on. You get a black screen that says “CMOS checksum error – defaults loaded. Press F1 to continue, DEL to enter setup.” Your stomach drops. Relax — this is usually the cheapest fix on the entire list. Your motherboard stores BIOS settings in a tiny memory chip, calculates a checksum over them, and re-verifies it at every single boot.

When those numbers disagree, you get the warning.

Some BIOS versions warn and continue with existing settings. Others assume corruption and load safe default values from the BIOS chip instead.

The most common culprit? A dying coin cell.

As The Windows Club explains, the CMOS checksum can go bad after a power failure or a reset during BIOS boot, and a damaged or dead RTC battery produces the same message.

Secondary triggers to rule out: an interrupted BIOS update, a recently added stick of RAM, or malware that mangled firmware settings.

2. CRC Failed / Checksum Error in the Encrypted File (The Archive One)

You download a 4 GB archive, wait patiently, then WinRAR slaps you with “CRC failed in [filename]. The file is corrupt.” Annoying, but informative. Cyclic Redundancy Check values get stored inside the archive when it’s created, and they’re only verified at extraction time — which is why a broken file can sit on your drive looking perfectly healthy for months.

That delay is the sneaky part.

Cyclic redundancy checks confirm a RAR file’s integrity, and the check only fires when you actually extract.

One weird gotcha worth knowing: WinRAR also displays a CRC error when you repeatedly enter the wrong password for an encrypted archive. So before you assume file corruption, double-check your password.

3. TCP, UDP, and IP Checksum Failures (The Invisible One)

Here’s the good news — you’ll almost never see this one, and that’s by design. Every packet crossing the internet carries a checksum in its header. If integrity verification fails at the receiving end, the packet gets silently dropped and retransmitted. Your video keeps playing. Your download keeps going. The network stack absorbs the data corruption before it ever reaches your screen.

The math is genuinely elegant.

RFC 1071, the IETF document that defines the internet checksum for IP, UDP, and TCP, describes it like this: adjacent octets are paired into 16-bit integers, the 1’s complement sum is formed, and the 1’s complement of that sum goes into the checksum field. To verify, the receiver recomputes the sum over the same octets including the checksum field — and if the result is all 1 bits, the check passes.

You only notice packet corruption when it’s relentless — think failing NIC, bad cable, or a badly behaved proxy.

4. Storage Checksum Errors and Silent Data Corruption (The Scary One)

Now the one that actually keeps me up at night. Modern filesystems like ZFS and Btrfs checksum every block they write and verify it on every read. When they report a checksum error, they’re catching something your hard drive’s own error correction missed entirely. That’s called silent data corruption, or bit rot, and it’s far more common than the average person assumes.

The official ZFS documentation defines the CKSUM counter plainly: the device returned corrupted data in response to a read request. In a redundant pool, ZFS pulls good data from a replica and heals the damaged copy automatically.

And when it can’t?

Klara Systems puts it well: ZFS follows a strict rule — if it lacks the redundancy to rebuild correct data, it reports an error instead of handing you corrupted bytes.

The scale here is not theoretical, and the numbers are worth memorising:

• CERN, 2007: a six-month study wrote roughly 97 petabytes across 3,000 nodes and found 128 MB permanently corrupted — with 500 errors detected across 100 nodes.
• NetApp, 2008: a 41-month study across 1.53 million disk drives documented over 400,000 checksum mismatch instances — and about 30,000 of those were missed by the RAID controller entirely, surfacing only during disk scrubbing.
• Nearline drives corrupted at roughly 10× the rate of enterprise drives in that same study.

That last bullet is why cheap bulk storage and important data are a bad marriage.

How to Fix a Checksum Error: My Step-by-Step Process

Right, enough theory. Below is the exact sequence I run through, ordered from cheapest to most involved. Work top to bottom and stop the moment your problem disappears. Most people resolve this within the first three steps, and I’d guess 60% of readers are done after step two. Don’t skip ahead — the early steps are fast and they eliminate the noisy false positives that make everything else confusing.

Grab a coffee. Let’s fix this.

1. Identify which layer you’re on. Read your error message word for word. Does it mention CMOS, BIOS, or defaults? That’s firmware. Does it name a .rar, .zip, or .iso file? That’s archive corruption. Does it appear in zpool status or a NAS dashboard? That’s storage. Match first, then act.
2. Re-download or re-copy the file. For downloads and archives, this fixes it shockingly often. An incomplete download or a dropped connection leaves you with truncated data that still opens, still looks normal, and still fails verification. Pull a fresh copy from the official source rather than a third-party mirror. Seriously — do this before anything clever.
3. Verify the checksum yourself. Don’t guess. Measure. Every major OS ships with a built-in hash verification tool, and Akamai’s documentation lists the standard commands:
   • Windows (CMD): certutil -hashfile C:\path\to\file.iso SHA256Windows (PowerShell): Get-FileHash C:\path\to\file.iso -Algorithm SHA256Linux: sha256sum /path/to/file.isomacOS: shasum -a 256 /path/to/file.iso
   Compare the result to the publisher’s posted value. Case doesn’t matter — hex A-F equals a-f.
4. Interpret a mismatch correctly. A checksum mismatch has a predictable ranking of causes. One well-structured guide orders them like this: a truncated download first, then bytes rewritten in transit, then a publisher who updated the file but forgot to update the posted hash, and only then genuine tampering. Check the boring explanations before you assume you’ve been attacked.
5. Attempt archive repair — carefully. If re-downloading isn’t possible, try WinRAR’s Repair archive tool, or extract with “Keep broken files” enabled to salvage partial media. But manage your expectations: WinRAR’s own support page states that a recovery record won’t help in every scenario, and the only way to know is to run the repair and test the result.
6. Handle the hardware cases. These split cleanly in two — see below.

Fixing Firmware-Level Checksum Errors

Enter setup with Del, F2, or F10, then load optimized defaults, save, and reboot. If the clock keeps resetting after that, replace the CR2032 battery — HP’s support community confirms this is the standard remedy. Reflash firmware only if it’s genuinely damaged, because a failed flash is far worse than the error you started with.

Fixing Storage-Level Checksum Errors

Run a disk scrub on your pool, then check SMART attributes for reallocated sectors and pending bad sectors. Swap the SATA or SAS cable before you condemn the drive — cables cause more phantom CKSUM counts than people expect. And if you’re running a serious array, confirm your RAM is ECC.

CRC32 vs MD5 vs SHA-256: Which Checksum Should You Use?

Quick but important. Not every checksum does the same job, and picking wrong gives you false confidence. Some algorithms exist purely to catch accidental corruption fast. Others exist to catch a deliberate attacker. Confusing the two is how people end up “verifying” a malicious download and feeling great about it. Here’s the honest breakdown.

My rule of thumb, in one line each:

CRC32 answers “did this break?” SHA-256 answers “did someone change this?” MD5 answers neither reliably anymore.

Practical collision attacks killed MD5’s security value, and SHA-1 fell to the SHAttered attack demonstrated by Google and CWI Amsterdam in 2017. Both remain fine for spotting accidental damage — just never for security.

Why SHA-256 Became the 2026 Default

Here’s the shift I’ve watched happen over the last couple of years. Checksum validation stopped being a manual, occasional habit and became automatic infrastructure. Package managers like pip, npm, and conda now verify SHA-256 hashes on every single install. Container registries verify image digests on every pull. CI/CD pipelines fail the build outright on a mismatch.

That’s a big deal.

It means most checksum errors you encounter in 2026 aren’t things you chose to check — they’re guardrails firing on your behalf, usually in a build log. Treat them as signal, not noise.

Is a Checksum Error Dangerous?

Short answer: usually no, occasionally yes. A one-off CRC failed message on a downloaded file is almost always a bad transfer. A repeated CMOS checksum error is a dying battery. But a checksum mismatch on a file you never touched, sitting on a healthy-looking drive, deserves your full attention — that’s the signature of silent data corruption or a failing disk.

Pattern matters more than any single event.

One error, one time? Re-download and move on.

Same error, same file, every week? Something physical is failing, and your backups just became the most important thing you own.

Frequently Asked Questions About Checksum Errors

Is a checksum error the same as a CRC error?

Effectively, yes. CRC stands for Cyclic Redundancy Check, which is one specific type of checksum. When WinRAR reports “CRC failed”, the integrity check failed because the data no longer matches what was originally stored. The same fixes apply to both error types.

Can I recover a file that has a checksum error?

Sometimes. Enabling “Keep broken files” during extraction salvages whatever data is readable, and media files like video or images often still play afterwards. But a checksum error means bytes are genuinely wrong — full recovery is never guaranteed. Re-downloading from the source is always cleaner than repairing.

Why does a freshly downloaded file fail its checksum?

Usually because the download quietly didn’t finish. Some browsers fail silently on partial downloads, leaving you with a truncated file. Other causes: you hashed the wrong file, or the publisher updated the release without updating the posted hash on a cached page.

Does a CMOS checksum error mean my motherboard is dying?

Rarely. In most cases it’s a CR2032 battery that’s run flat, and the giveaway is a clock that resets every time you power down. Motherboard failure is much less likely — and if the system never reaches the firmware screen at all, the checksum message is a symptom rather than the root cause.

Should I still use MD5 to verify downloads?

Only for spotting accidental corruption. MD5 has practical collision attacks against it, so it cannot prove a file wasn’t deliberately swapped. If a publisher offers both, always take the SHA-256 value.

How often should I scrub a ZFS pool?

Monthly is a common baseline for consumer setups, weekly for production arrays. A handful of repaired blocks across a large pool is normal — occasional bit rot is expected. A rising repair count across consecutive scrubs is your warning sign.

Related Reading

If you want to go deeper on the surrounding topics, these guides pick up where this one stops:

More troubleshooting guides in Tech Insights

How to Fix Dropbox Error Code 8737-IDJ-029-22

How to Fix Slow Boot on Mac: 9 Proven Fixes

Best Cloud Storage Services Compared (11 Tested)

The Google Pixel 10 Pro is a 6.3-inch Android flagship built around Google’s Tensor G5 chip, a 50MP triple camera with 100x Pro Res Zoom, and seven years of software updates. It launched at $999 in August 2025 and now sells for around $749. Its successor starts at $1,099 with less base RAM. That combination is the entire story of this phone in 2026, and it is why I am writing about a last-generation device instead of the shiny new one.

Here is my honest position after a year of reviews, lab tests, and price tracking.

Most people shopping for a flagship Android phone right now should not buy the newest thing.

They should buy this one. Let me show you why.

Why the Google Pixel 10 Pro Matters More in 2026 Than It Did at Launch

Timing rewrote this phone’s value proposition. At $999, the Google Pixel 10 Pro fought the Samsung Galaxy S25 and the iPhone on level pricing, and reviewers were lukewarm. At $749, it competes against upper mid-rangers while carrying genuine flagship silicon. That is not a small shift. It is a different phone in the buyer’s mind, which means most Pixel 10 Pro review coverage from launch week is now actively misleading if you read it as purchase advice today.

Look at what the discounted price actually buys.

< cite index=”14-1″>The custom Tensor G5, 16GB of RAM, seven years of software support, Qi2 magnetic wireless charging, a triple camera system with Gorilla Glass Victus 2, and a free year of Google AI Pro.</cite> Droid-Life said it cleanly: $749 is a fundamentally different conversation than $999.

The discounting has been relentless, too. < cite index=”8-1″>By June 2026 the phone sat at $250 off, or $749 for the 128GB model, with the same discount on 256GB and 512GB versions.</cite> Android Central tracked Amazon pushing $300 off as retailers cleared stock.

Price Timeline at a Glance

< cite index=”28-1″>Confirmed pricing from the August 12 event: $899 for the Pixel 11, $1,099 for the Pixel 11 Pro, $1,299 for the Pixel 11 Pro XL, and $1,899 for the Pixel 11 Pro Fold, with the whole lineup shipping August 20.</cite>

So the real question is not whether this phone deserved a grand. It is whether the Google Pixel 10 Pro price today beats a successor asking $350 more than the street price of the outgoing model.

I think it does, comfortably. Here is the evidence.

Google Pixel 10 Pro Specs vs the Rest of the Lineup

The hardware sheet is flagship-grade with no asterisks. < cite index=”24-1″>You get a 6.3-inch LTPO OLED at 120Hz with 3,300 nits peak brightness, the 3nm Tensor G5, 16GB of RAM, a triple camera of 50MP main, 48MP periscope telephoto and 48MP ultrawide, storage to 1TB, a 4,870mAh battery, IP68, 8K video, Wi-Fi 7 and Bluetooth 6.0.</cite> Nothing there is a mid-range part sneaking into a premium chassis. Below is how the three siblings actually compare, because the differences are narrower than Google’s marketing suggests.

Two details deserve separate billing.

< cite index=”6-1″>The selfie camera is 42MP, and charging runs 29W wired plus 15W Qi2 wireless.</cite> Charging speed is the one spec where rivals genuinely embarrass Google, and I will not pretend otherwise. < cite index=”42-1″>GSMArena measured the smaller Pro hitting close to its promised 55% in 30 minutes, while the XL, rated for 45W, reached 64% against a claimed 70%.</cite>

Build quality is where the money went. < cite index=”2-1″>The frame is aluminium with Gorilla Glass Victus 2 front and back, in Moonstone, Jade, Porcelain and Obsidian.</cite> Jade is the one strangers comment on.

The Display Is the Underrated Part

Screen quality gets buried in spec sheets, but it is the thing your hands touch for six hours a day. The Super Actua display here is an LTPO panel, so the refresh rate drops when content is static and ramps to 120Hz when you scroll. That matters more for endurance than for smoothness.

Lab testing tempers the brightness marketing, though. < cite index=”40-1″>GSMArena recorded 2,351 nits with adaptive brightness on a 75% lit area, essentially matching the Pixel 9 Pro,</cite> so the 3,300-nit figure applies to small highlight areas rather than the whole panel.

Outdoors in summer sun, it is still excellent.

Compact Flagship Is a Real Category Again

The 6.3-inch footprint deserves attention because so few premium Android phones offer it anymore. Droid-Life’s read matches mine: < cite index=”8-1″>the smaller Pro suits most people, especially anyone scrolling all day who still wants a hand free.</cite>

If you have been pushed into a 6.8-inch slab because that is where good cameras live, this solves a problem you may have stopped complaining about.

Pixel 10 Pro Battery Life: What Testing Actually Shows

Expect four to five hours of screen-on time in normal use, with the smaller Pro outperforming the larger XL. That inversion surprised everyone. Android Authority’s team testing found < cite index=”39-1″>the XL struggled to pass four hours of screen-on time while the standard Pixel 10 and Pixel 10 Pro managed closer to five, or a little more with lighter use.</cite>

Real-world reviewer data lines up. Droid-Life reported that < cite index=”38-1″>on the smaller Pixel 10 Pro, a typical 7AM to 11PM day produced three to four hours of screen time with 30% remaining.</cite>

Against direct rivals it holds up better than the modest capacity suggests. < cite index=”44-1″>In a controlled 200-nit test alternating video recording, social apps, YouTube and gaming, the Pixel 10 Pro lasted 7 hours and 1 minute, beating the iPhone 16 Pro at 6 hours 15 minutes and the Galaxy S25 five minutes behind that.</cite>

One caveat worth knowing. < cite index=”40-1″>GSMArena believes Google used conventional graphite anodes rather than silicon-carbon,</cite> which is why capacity stayed modest while competitors grew.

Tensor G5: The Chip Story Nobody Explained Well

Google switched foundries with this generation, and that is the most consequential change under the hood. < cite index=”19-1″>The Tensor G5 is Google’s first TSMC-fabricated Tensor, replacing designs derived from Samsung’s Exynos foundry.</cite> Counterpoint Research framed it as the moment Tensor became Google’s own silicon rather than a modified off-the-shelf part.

The performance claims are specific. < cite index=”20-1″>Google says the G5 is 34 percent faster than the G4 on CPU with a TPU 60 percent faster at AI tasks, letting the newest Gemini Nano run entirely on-device without connectivity.</cite> Engadget confirmed that offline generative AI genuinely works here.

If you want the wider context on how on-device models differ from cloud-based ones, our guide to generative AI breaks down the architecture in plain language.

Now the part I want you to hear.

Raw benchmarks are not this chip’s strength. MobileSyrup was blunt: < cite index=”21-1″>everyday speed across AI features and app launches was fine, but benchmarking results were disappointing.</cite>

That trade was deliberate. Google optimized for on-device AI throughput and sustained efficiency over peak scores.

Pro Res Zoom and the 100x Question

The telephoto system is the single strongest reason to pick the Pro over the base model. < cite index=”23-1″>The updated architecture delivers 10x optical quality and 20x super-resolution zoom, then reaches 100x professional resolution zoom with AI assistance, a workload so heavy that only the Pro has the processing bandwidth for it.</cite>

Results are startling. They also raise a question few reviews answer honestly.

PhoneArena asked it directly: < cite index=”2-1″>the AI sharpens the existing image and creates pixels from scratch with zero information from the sensor and the reality it is supposed to capture, which invites the question of when a photo stops being a photo.</cite>

My rule: use 100x to read a street sign, not to document anything you need to be true.

Camera Coach splits people. Business Standard found that < cite index=”18-1″>composition advice is useful but limited to static frames, and in fast scenes or with moving subjects it often causes missed moments.</cite> The same review landed a point that stuck with me: < cite index=”18-1″>imaging progress was minimal because the Pixel 10 Pro reuses the sensors introduced with the Pixel 9 Pro.</cite>

So the computational photography improved. The hardware collecting the light did not.

Magic Cue: Brilliant or Broken, Depending Who You Ask

Reviews genuinely contradict each other on this feature, so I will give you both sides instead of picking the convenient one.

The optimistic case, from Engadget: < cite index=”20-1″>with permission, Gemini reads your screenshots, calendar and Gmail, then surfaces the venue email address your friend needs or nudges your calendar when someone asks about weekend plans, marked with a rainbow aura that has become visual shorthand for AI.</cite>

The pessimistic case is harsher. BigGo’s testing found that < cite index=”24-1″>in organic use the assistant rarely surfaced anything meaningful, and when asked for an event address stored in Google Calendar it returned the wrong neighbourhood instead of the actual venue.</cite>

Both are true. Magic Cue shines when your Google account is dense with structured data and you live in Gmail and Calendar. It does close to nothing if you do not.

Worth noting for upgraders: < cite index=”31-1″>Google’s newer lineup pushes toward agentic tasks like ordering groceries or booking rides, which 9to5Google describes as a large jump from Magic Cue, though Magic Cue itself is not going away.</cite>

Should You Buy the Google Pixel 10 Pro or the Pixel 11 Pro?

Buy the older one in most cases, and the RAM situation is the reason people are missing. < cite index=”31-1″>The Pixel 11 Pro moves to Tensor G6 with 50% more TPU power, paired with 12GB of RAM as the baseline across the series, up to 16GB but down from last year at the bottom tier.</cite>

Read that again.

The discounted Google Pixel 10 Pro ships with 16GB standard. The newer Pro starts at 12GB and costs $350 more at street prices. For a phone sold on on-device AI, memory is not a footnote.

Here is my step-by-step decision process.

Step 1: Check your current phone’s battery health. Above 80% capacity on a Pixel 9 Pro? Skip this generation. The sensor carryover means your camera is nearly identical.

Step 2: Pick your size. Want compact? The standard Pro is your only premium option. Want maximum screen? < cite index=”6-1″>The XL brings 6.8 inches, 5,200mAh and 39W wired charging,</cite> though its endurance tested worse.

Step 3: Set a price alert at $749 or below. Track Android Central’s deals coverage monthly. Never pay list price for a phone in its final retail quarter.

Step 4: Choose storage deliberately. < cite index=”28-1″>The 128GB tier is gone from the current generation entirely.</cite> If you shoot 8K or keep offline libraries, 256GB is your floor.

Step 5: Confirm the support window. Seven years from August 2025 means updates into 2032, longer than most people keep a phone. If you’re cross-shopping platforms, compare it against Apple’s flagship in our iPhone 16 Pro Max guide before you commit.

Who Should Skip This Phone

• Fast-charging obsessives. 29W wired is genuinely behind the market.
• Competitive mobile gamers. Benchmark performance trails Snapdragon flagships.
• Anyone outside Google’s ecosystem. Half the value is switched off by default.
• Heavy screen-time users. Four to five hours of screen-on time is adequate, not class-leading.
• Buyers who need years-out battery health. Android Authority raised concerns about degradation across a seven-year support window.

Everyone else should look hard at the discount. If you’re weighing whether to wait for a newer release instead, our iPhone 17 launch guide covers the same wait-or-buy calculation from the Apple side, and the AirPods Pro guide is worth a look if you’re building out audio to match.

Frequently Asked Questions

Is the Google Pixel 10 Pro still worth buying in 2026?

Yes, especially discounted. You get current-generation silicon, a full flagship camera, 16GB of RAM, and software support through 2032 for less than many mid-rangers cost new.

How much should I pay for a Google Pixel 10 Pro right now?

Target $749 or below for 128GB. < cite index=”8-1″>That price recurred throughout 2026,</cite> so paying more usually means you moved too fast.

How long does the Pixel 10 Pro battery last?

Roughly four to five hours of screen-on time daily. < cite index=”44-1″>In controlled testing it ran 7 hours 1 minute, ahead of the iPhone 16 Pro and Galaxy S25.</cite>

Does the Pixel 10 Pro support Qi2 magnetic accessories?

Yes. Qi2 magnetic wireless charging at 15W works with Pixelsnap cases, wallets, power banks and car mounts without an adapter.

How long will the Pixel 10 Pro receive updates?

Seven years from its August 2025 launch, so security and OS updates run into 2032.

Does Pro Res Zoom actually work at 100x?

It produces legible, usable images, but it generates detail the sensor never captured. Treat it as convenience, not documentation.

What is the difference between the Pixel 10 and Pixel 10 Pro?

RAM and cameras. < cite index=”5-1″>The base model has 12GB against the Pro’s 16GB,</cite> and only the Pro handles 100x zoom.

Is Magic Cue worth enabling?

Only if you use Gmail and Calendar heavily. Its usefulness scales with how much of your life already lives inside Google.

I would rather own a discounted flagship with more RAM and seven years of updates than a new phone at full price offering incremental gains. If that logic tracks for you, set your alert and move before remaining stock disappears.

Final Verdict: Is the Google Pixel 10 Pro the Smart Buy in 2026?

The Google Pixel 10 Pro is the best-value flagship Android phone available right now, and the math is not close. At roughly $749, you get 16GB of RAM, a full triple-camera system with 100x zoom, Qi2 magnetic charging, and software updates running through 2032. Its successor asks $1,099 and starts with less memory.

That gap will not last. Retailers are clearing the remaining stock, and once it goes, the value case goes with it.

So set a price alert, decide between the compact Pro and the larger XL, and buy before the inventory dries up. If you want the newer option side by side, our Pixel 11 Pro breakdown covers what your extra $350 actually buys.

To crop in Preview on Mac, open your image or PDF, click Show Markup Toolbar, select the Rectangular Selection tool, drag over the area you want to keep, then click Crop (or press Command-K). It works the same way for both photos and PDFs, and Preview lets you undo the crop anytime before you save.

I’ll be honest with you — for years, I didn’t even realize my Mac had a built-in tool that could handle basic photo editing and PDF editing without me needing to download anything extra. Then I discovered Preview, and it changed how I handle quick image and document edits forever.

If you’ve ever needed to crop an image on Mac or trim down a PDF before sending it off, you’re in the right place. This guide is updated for macOS 2026, and I’m going to walk you through exactly how I crop in Preview, step by step, with zero fluff. Let’s get into it.

What Is Preview, Anyway?

Before we jump into the how-to, let me quickly explain what we’re working with here. You might already have this app open right now without realizing its full power.

Preview is Apple’s native Mac Preview app — it comes pre-installed on every Mac, and while most people think of it as just a photo viewer, it’s actually a surprisingly capable editing tool. You can resize photos, rotate them, and — the star of this show — crop images and PDFs with just a few clicks.

And here’s the best part: you don’t need Photoshop, you don’t need a subscription, and you don’t need to learn some complicated new interface. It’s already sitting on your dock. If you’re curious about lightweight alternatives too, I’ve also put together a guide on free AI photo editor tools and apps worth checking out.

How to Crop an Image in Preview (Step-by-Step)

Okay, let’s get to the good stuff. This is the part you actually came here for, so I’m not going to waste your time.

Here’s exactly what I do every single time I need to crop a photo:

1. Open your image in the Preview app.
2. Click Show Markup Toolbar (if it’s not already visible).
3. Select the Rectangular Selection tool — this is your crop tool.
4. Click and drag to draw a box around the part of the image you want to keep.
5. Once you’re happy with your selection, hit the Crop button in the toolbar.

That’s it. Genuinely, that’s the whole process. You first select the area you want to keep, and then Preview discards the rest — and if you want to view the exact dimensions of your selection, you can choose Tools > Show Inspector and pick a unit of measurement in the Crop Inspector window.

Made a Mistake? Here’s How to Undo It

Don’t panic if you crop the wrong section — I’ve done this more times than I’d like to admit. To undo the crop immediately, just choose Edit > Undo Crop. And if you realize later that you need the original back, you can go to File > Revert To > Browse All Versions and restore the version from before you cropped it.

This is honestly one of my favorite things about Preview — it’s forgiving. You’re not going to permanently destroy your original file by accident.

Cropping to a Specific Size or Aspect Ratio

Here’s a question I get a lot: can you crop to an exact pixel size in Preview? Yes, sort of.

After making your rectangular selection, open Tools > Show Inspector, then click the Crop Inspector icon. From there, you can view and adjust the dimensions in inches, pixels, centimeters, or points before you commit to the crop. It’s not a true “type in exact dimensions and auto-crop” feature like some paid tools offer, but it does let you fine-tune your selection with real numbers, which is great for prepping images for social media dimensions or a specific aspect ratio.

How to Crop a PDF in Preview

Now, cropping images is great, but what about PDF cropping? Good news — the process works almost identically.

Here’s how I do it:

1. Open your PDF file in Preview.
2. Show the Markup Toolbar.
3. Select the Rectangular Selection tool.
4. Drag to select the portion of the page you want to keep.
5. Click Crop (or press Command-K).

Just like with images, you’re selecting the area you want to keep and discarding the rest — and you can undo the crop immediately through Edit > Undo Crop, or later through File > Revert To > Browse All Versions.

Important: Preview Cropping Isn’t Always Permanent

Here’s something I wish someone had told me earlier. According to Smallpdf, Preview uses non-destructive cropping — meaning the content outside your selected area is hidden, but it’s not actually deleted from the file.

So if you’re sending a sensitive document and you’re cropping out private information, don’t assume it’s gone forever. It might still technically be embedded in the file.

Speed Things Up With Keyboard Shortcuts

If you’re like me and you crop images fairly often, memorizing a few shortcuts will save you a ton of time. Trust me on this one.

According to a detailed breakdown from ladedu.com, you can use the arrow keys to nudge your selection by one pixel, or hold Shift with an arrow key to move it by 10 pixels at a time. You can also zoom in and out with Command + and Command -, and when you’re ready, just press Command K to crop instantly.

There’s also a neat trick if you want to “cut” instead of crop: use Command Shift I to invert your selection, then crop from there. I use this one when I want to remove a specific object from a photo rather than keep just one section.

What If the Crop Button Is Greyed Out?

This one trips up a lot of people, and honestly, it tripped me up the first time too. If this happens alongside other odd Mac behavior, it’s also worth ruling out bigger performance issues — I cover common culprits in my Mac slow boot fixes guide.

If your Crop option won’t click, it’s usually because Preview doesn’t detect an active selection yet. Per UPDF’s troubleshooting guide, if the Crop menu item is greyed out, you need to first make a selection using the Rectangular Selection tool — and if that tool isn’t visible, you can go to Edit > Select All, then drag the selection over the area you want to keep before heading to Tools > Crop.

Simple fix, but easy to miss if you’re moving fast.

The Screenshot Workaround (For Permanent Crops)

If you want a crop that’s truly locked in — no hidden data, no chance of reverting — there’s a clever workaround using your Mac’s built-in screenshot tool.

Here’s the method, based on guidance from itselectable: open your PDF in Preview, go to File > Take Screenshot, choose Selection, Window, or Entire Screen, and once you’ve got your cropped screenshot saved as a PNG, go to File > Export as PDF to convert it back.

This method flattens your document completely, which is perfect for situations where privacy or file cleanliness really matters.

Preview vs. Other Cropping Tools

You might be wondering how Preview stacks up against the paid or web-based alternatives out there. Here’s the honest breakdown:

My take: if you just need to crop a photo or trim a PDF page here and there, Preview is genuinely all you need — it’s free, it’s already on your Mac, and it does the job in under a minute. If you’re regularly batch-processing dozens of PDFs or need pixel-perfect crop marks for print, that’s when I’d reach for Acrobat or a dedicated web tool like Smallpdf.

Bonus: Resizing and Batch Editing

While we’re here, it’s worth mentioning that Preview isn’t just for cropping. You can also handle image resizing and even edit multiple photos at once.

To resize several images at the same time, display them together in the same window, select them all in the sidebar, then choose Tools > Adjust Size. This is a massive time-saver if you’re prepping a batch of photos for a website or presentation.

Frequently Asked Questions

Can I crop a PDF in Preview?

Yes. Open the PDF, show the Markup Toolbar, select the Rectangular Selection tool, drag over the area you want to keep, then click Crop or press Command-K.

Does cropping in Preview delete the original image?

No — Preview’s cropping is non-destructive by default. You can undo it via Edit > Undo Crop, or recover an earlier version through File > Revert To > Browse All Versions.

Why is the Crop button greyed out in Preview?

This usually means you haven’t made an active selection yet. Use the Rectangular Selection tool to draw a box first, then Crop should become clickable.

Can I crop to an exact pixel size in Preview?

You can view and adjust your selection’s dimensions using the Crop Inspector (Tools > Show Inspector), but Preview doesn’t offer a type-in-exact-dimensions auto-crop feature.

Is Preview cropping permanent?

Not necessarily. Preview hides the cropped-out content rather than deleting it outright. For a fully flattened, permanent crop, use the screenshot-and-export method described above.

Can I crop multiple images at once in Preview?

Not directly — cropping is a one-image-at-a-time action. However, you can resize multiple images simultaneously via Tools > Adjust Size.

Final Thoughts

So there you have it — everything you need to crop in Preview like a pro, whether you’re working with images or PDFs.

Here’s my honest take: for quick, everyday edits, Preview genuinely holds its own against paid tools. You don’t need Photoshop. You don’t need Adobe Acrobat. You already have everything you need sitting right there in your Applications folder.

Give it a shot next time you need a quick crop — I think you’ll be surprised at how capable this “simple” app really is.

If you want to put a line through text, select it and use the strikethrough shortcut for your app — usually Ctrl/Cmd + Shift + X in Google apps, Ctrl + 5 in Excel, or the ~~text~~ syntax in Markdown. Below, I’ll walk you through every method, app by app, plus how to remove it and fix it when it doesn’t work.

I’ll be honest with you — strikethrough is one of those tiny formatting tricks nobody teaches you, but once you know it, you’ll use it constantly. Maybe you’re crossing off a finished to-do. Maybe you’re showing a discounted price. Or maybe you just want your document to look a little more human.

Whatever the reason, I’ve tested every method across every major app, so you don’t have to. Let’s get into it.

What Does “Strikethrough” Actually Mean?

Before you go clicking buttons, it helps to know what you’re actually doing — and why it matters more than you’d think.

Strikethrough — also called a line through text, crossed-out text, or struck-through text — is a horizontal line drawn across a word or sentence. It doesn’t delete anything. The text is still there, still selectable, still searchable. You’re just visually marking it as outdated, canceled, or no longer relevant.

Think of it like a pen crossing off an item on a paper list. The item’s still written down — you just know it’s done.

According to MDN Web Docs, this distinction matters even more in code, because there’s a real difference between text that’s simply outdated and text that was formally deleted — which affects accessibility and how screen readers announce it.

If you’re also curious about other text symbols people search for, I broke down the does not equal sign meaning and its history in a separate guide — worth a read if formatting quirks like this interest you.

Strikethrough Shortcuts at a Glance

Here’s the fast version — bookmark this table if you don’t want to read the whole guide.

Now let’s go deeper into each one.

How to Strikethrough Text in Microsoft Word

Word’s a workhorse, but it hides this feature a little.

Step-by-step method

1. Select the text you want to cross out.
2. Head to the Home tab.
3. Click the strikethrough icon (it looks like “abc” with a line through it).

Keyboard shortcut method

On Windows, press Alt, H, then 4 — one after another, not all at once. On Mac, it’s Cmd + Shift + X.

Here’s a fun fact I didn’t expect: Word doesn’t give strikethrough its own dedicated shortcut the way it does for bold and italics, according to Smartupworld’s shortcut breakdown. Weird, right? You can fix that yourself by assigning a custom keyboard shortcut through File → Options → Customize Ribbon.

How to remove strikethrough in Word

Select the struck-through text and press Ctrl + Spacebar — this clears strikethrough along with any other manual formatting, resetting the text to default.

How to Strikethrough Text in Google Docs

If you live in Google Docs, you’re in luck — this one’s fast.

Desktop method

• Highlight your text.
• Press Alt + Shift + 5 (Windows) or Cmd + Shift + X (Mac).

That’s it. Two seconds, done.

Mobile method

Tap the “A” formatting icon, then select Strikethrough. Works the same on Android and iOS.

One thing worth mentioning: if you’re collaborating using Suggesting mode, Google Docs automatically displays deleted text with a strikethrough so your teammates can see exactly what’s being proposed. Pretty slick.

To remove it, just select the text and reapply the same shortcut — toggling it twice removes it.

How to Strikethrough Text in Excel

Excel handles this differently than Word, but it’s arguably the easiest app on this whole list.

Select your cell (or the specific text inside it), then hit Ctrl + 5. Same shortcut on Windows and Mac — no need to memorize two versions.

Prefer the dialog-box route? Press Ctrl + 1 to open Format Cells, click over to the Font tab, and check the Strikethrough box.

Quick heads-up: per Smartupworld’s testing, Excel Online doesn’t support the Ctrl+5 shortcut at all — you’ll need to go through the Format Cells menu manually there.

How to Strikethrough Text in HTML and CSS

Now it gets a little more technical — but stick with me, because getting this right actually matters for SEO and accessibility.

You’ve got three options, per W3docs:

1. The <del> tag

Use this when content was literally deleted or removed — revision histories, price changes, edited documents.

html

<del>$120</del> Now only $85!

2. The <s> tag

Use this when something is no longer accurate or relevant, but you still want it visible for context, as MDN explains.

html

<s>Support for Internet Explorer 11 continues.</s>

3. CSS text-decoration: line-through

Use this when the line is purely visual and carries no semantic meaning.

css

.struck { text-decoration: line-through; }

Avoid the old <strike> tag — it’s officially obsolete in HTML5, and using it can trigger validation errors and hurt accessibility, since screen readers won’t announce it as meaningfully as <del>.

How to Strikethrough Text in Markdown

If you write in Markdown — for a blog, README file, or note-taking app — this one’s refreshingly simple.

Wrap your text in double tildes:

~~this text is struck through~~

That renders as this text is struck through.

Here’s a gotcha that trips people up constantly: per Guidest’s Markdown guide, this syntax is part of GitHub Flavored Markdown (GFM), not the original CommonMark spec. Older or stricter Markdown parsers won’t render it.

If that happens, swap in the <del> tag instead — a reliable fallback that works almost everywhere. And if you’re working with AI writing tools that sometimes mangle formatting like this, my guide to humanizing AI text covers a few tools worth checking out.

Strikethrough in Notion, Slack, and Other Apps

You’ll find the same basic pattern almost everywhere:

• Notion: Select text, press Cmd/Ctrl + Shift + S, or use ~~text~~ inline.
• Slack: Wrap your message in single tildes: ~text~.
• Gmail: Highlight text, press Alt + Shift + 5 (Windows) or Cmd + Shift + X (Mac).
• PowerPoint: On Windows, Alt, H, 4. On Mac, there’s no direct shortcut — press Cmd + T to open the Font dialog and check the box manually.

Troubleshooting: When Strikethrough Won’t Work

If your shortcut isn’t doing anything, run through this checklist:

1. Make sure text is actually selected — most shortcuts do nothing on an empty cursor.
2. Check for shortcut conflicts — antivirus tools, screen readers, or browser extensions sometimes hijack combinations like Ctrl+Shift+X.
3. Try the menu-based method instead — Format Cells in Excel, or the Font dialog in Word (Ctrl + D).
4. Restart the app — a stuck formatting toolbar is a surprisingly common, boring cause of shortcuts failing silently.

FAQ: Quick Answers About Strikethrough

How do I put a line through text in Word?

Select the text and press Alt, H, 4 (Windows) or Cmd + Shift + X (Mac), or click the strikethrough button on the Home tab.

What’s the fastest way to strikethrough in Google Docs?

Highlight the text and press Alt + Shift + 5 (Windows) or Cmd + Shift + X (Mac).

Does strikethrough delete the text?

No. It’s formatting only — the text stays visible, searchable, and copyable unless you separately delete it.

Which HTML tag should I use for strikethrough?

Use <del> for removed content, <s> for outdated-but-relevant content, and CSS text-decoration: line-through for purely visual styling. Avoid the obsolete <strike> tag.

Why doesn’t my strikethrough shortcut work?

Usually a text-selection issue or a conflicting shortcut from another app. Try the menu-based method as a fallback.

Wrapping Up: Which Method Should You Use?

At the end of the day, strikethrough is a small feature that says a lot when used right. If you’re working in Word, Docs, or Excel, the keyboard shortcut is always your fastest bet. If you’re coding, pick your HTML tag based on meaning, not just looks — that’s what actually helps your accessibility and SEO.

So next time you need to put a line through text, you won’t have to Google it again — you’ll already know exactly which method fits what you’re doing.