How to remove personal information from a screenshot on iPhone

Last updated: August 6, 2026

Open the screenshot in RedactOffline, let it automatically detect text like phone numbers and addresses, choose which regions to redact and with which style, then export. You can also skip opening the app entirely and redact a screenshot straight from the Share sheet in Photos, Messages, or Safari, using RedactOffline's Share Extension. Both paths run entirely on the device, with no upload step.

How do I redact a screenshot using the RedactOffline app?

1. Open RedactOffline.
2. Import the screenshot from your photo library, take a new photo, or import several at once with batch import.
3. Review the automatically detected text regions, each labeled by type, such as email, phone number, address, or credit card number.
4. Tap to accept or remove any detected region, or manually select additional text the detector missed.
5. Choose solid fill for anything sensitive. Blur and pixelate, which the one-time purchase unlocks, suit lower-stakes content.
6. Export by saving to Photos, sharing, or copying to the pasteboard. The original photo is never modified.

How do I redact a screenshot without opening the app first?

Use the system Share Extension:

1. From Photos, Messages, Safari, or any app showing the screenshot, tap Share.
2. Choose RedactOffline from the share sheet. You can share up to three images at once this way.
3. Review the detected regions and adjust the selection the same way as in the full app.
4. Choose a redaction style and export back to Photos or forward it on.

Does Apple's Markup tool already do this?

Partly, and with an important gap. Markup, built into the Photos app, lets you draw shapes, lines, and black boxes over a photo by hand — see Apple's own guide to using Markup. It has no automatic text detection: you have to notice every phone number, address, or name yourself and cover it manually. It also has no pixelation filter, so there's no built-in way to obscure something without fully blocking it.

The bigger issue is that Markup edits are non-destructive by design. A black box you draw over a phone number can be removed later by anyone with access to the photo, using Apple's own "Revert to Original" feature — no special software required, just the Edit screen. That makes Markup fine for casual annotation, but not something to rely on when the box is covering information you actually need hidden. See RedactOffline vs Apple Markup for a direct comparison.

Which redaction style should I actually pick?

Solid fill for anything that matters — card numbers, ID numbers, addresses, full names attached to sensitive content. Blur and pixelate are flattened into the image too, so they can't be casually reverted the way Markup's black box can, but they're not equivalent to solid fill: pixel-level blur and pixelation are, in principle, reversible with the right tools, and text is an easier target for that kind of attack than most photos. The full explanation is on why blurred screenshots can be unredacted. Worth knowing before you weigh the purchase: solid fill is the free style, and it's the one to use when it matters.

Do I need an internet connection to redact a screenshot?

No. Detection and redaction both run on the device using Apple's Vision framework — see how it works. RedactOffline has no network code for this process; the screenshot never leaves your iPhone.

How do I make sure I didn't miss anything before sharing?

Zoom into the exported image before you send it, especially the corners and any small print — timestamps, watermarks, or a signature line are easy to skim past. Automatic detection is good at named categories like phone numbers and addresses, but it's still worth a manual check on dense screenshots, such as a full-page document or a chat thread with several messages stacked close together. If you add a custom term (a name, a project codename), remember it only matches that exact text, not variations or misspellings of it.

What if the screenshot also has a face in it?

RedactOffline won't help with that — it detects and redacts text only, not faces. If a screenshot has both text you need hidden and a face that also needs to be obscured, redact the text in RedactOffline first, then use a tool with face detection for the rest. See alternatives for options that do face blurring.

Common mistakes when redacting a screenshot

• Trusting a black box without checking how it was made. If it was drawn with Markup or a similar non-destructive editor, it can be reverted by anyone who opens the photo's edit history.
• Cropping instead of redacting. Cropping out a section only removes it visually from the displayed frame in some apps; it doesn't guarantee the original data isn't still attached, and it does nothing for information you can still see in the cropped frame.
• Sharing the wrong copy. After exporting a redacted version, double-check you're attaching the redacted file and not the original from your camera roll — they can look identical in a photo picker at a glance.
• Assuming blur is as safe as a black box. It generally isn't; see why blurred screenshots can be unredacted.