Sharing screenshots: what's actually in the frame?

Taking a quick screenshot and sending it to a colleague or supplier is convenient — but you're often sharing more than you realise. Here's what to check before you hit send.

A screenshot is probably the most underestimated communication tool in the office. A quick Windows + Shift + S or on a Mac Cmd + Shift + 4, paste it into an email or WhatsApp, and done. Faster than writing it all out. But that very speed means you regularly share information that was never meant to be seen.

In this post, we walk through what commonly hitches a ride in a screenshot — and how to check in ten seconds whether you're about to share something you shouldn't.

Why screenshots are sneakily more sensitive than attachments

With a PDF or Word document, you're usually more careful. You open it, scroll through it. With a screenshot, you don't: you take it, paste it, and send it. Often without actually looking at the image properly at full size.

And that's precisely the problem. A screenshot captures everything on your screen at that moment — not just the window you cared about.

What can accidentally end up in the frame

A selection of things we regularly see in practice:

• Browser tabs. "Salary increase Jan.docx — Google Drive" sitting next to the tab you were actually screenshotting. Even a tab title alone can be sensitive.
• Notifications in the corner. A Teams pop-up showing the first lines of a message from your accountant. Or a Signal notification with a private name.
• The taskbar. Open applications, your email client with an unread count, or that one tool you'd rather clients didn't know you use.
• The bookmarks bar. Shortcuts to internal systems, the client portal of your biggest customer, or a link with an authentication token in it.
• Names and email addresses. When you screenshot something from Outlook or a CRM, the sidebar is often full of other appointments, contacts, or deal values.
• Amounts and balances. A screenshot from your accounting package to show one invoice line — with fifteen other clients' outstanding balances visible alongside it.
• Internal URLs. The address bar often gives away more than you think: client IDs, file numbers, or the name of an internal system.

Situations where you need to be extra careful

Screenshots you share publicly

Posting a screenshot on LinkedIn, in a blog, or in a customer guide? Assume people will zoom in. What looked unreadably small on your screen is perfectly legible on a larger display.

Screenshots sent to external parties

Sending a screenshot to your accountant, a supplier, or a support team? Bear in mind that image will end up in their ticketing system and sometimes sits there for years. Share only what's needed.

Screenshots of error messages

Support teams receive screenshots of error messages every day. In the background, an entire client file is often open. In those cases, it's better to screenshot only the error window (on Windows: Alt + PrtScn; on Mac: click the specific window using Cmd + Shift + 4 then the spacebar).

A quick checklist before you hit send

1. Open the screenshot at full size and actually take a proper look at it.
2. Check all four edges: taskbar at the bottom, tabs at the top, notification area on the right, dock/menu bar.
3. Read what's in the address bar.
4. Check whether any names, amounts, or email addresses are visible that have nothing to do with your question.
5. Not sure? Crop the image or take a fresh screenshot of just the relevant part.

Redacting: use a solid block, not a blur

If you need to obscure something, use a solid, opaque black rectangle. Not a blur, not a mosaic, not a line drawn over it. Blur and mosaic effects can sometimes be reversed with the right software, and a line is simply readable if you look closely enough. Place a fully opaque rectangle over the area, save as PNG or JPG, and you're done.

Extra tip: save the edited version under a new filename. Never accidentally send the original.

Screenshots on your phone

The same rules apply on your phone — with one extra pitfall: the status bar at the top often reveals which apps you're using (banking app icon, VPN indicator, notifications from dating or health apps). And the bottom of the screen with your keyboard suggestions can display names you typed in an earlier conversation.

When a screenshot isn't the right solution

Some information simply doesn't belong in a screenshot. Think bank statements, payslips, copies of identity documents, or complete client lists. For documents like these, a PDF with the sensitive sections removed is a safer route than a screenshot.

For more on how to remove sensitive information from a PDF in a way that can't be undone, read our piece on hidden information in PDFs. And for merging or editing PDFs without sending along metadata, you can use our PDF merge tool.

In short

A screenshot feels throwaway, but it's a file like any other. It sits in the recipient's inbox, in ticketing systems, in WhatsApp backups. Take those ten seconds to check what's actually in the frame before you hit send. It saves hassle — and sometimes an awkward conversation afterwards.

Want to know more about sharing sensitive information responsibly within your business? Visit our page on working securely without an IT department, or browse our PDF tools.