Article

Never, ever, ever use pixelation for redacting text

Bishop Fox · bishopfox.com

A security firm's demonstration, with an open-source tool, that pixelated text can be recovered, which is why secrets need a solid box.

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The question it answers

  1. Which free tool can blur part of an image or video?

Read with it

  1. YouTube Studio's free Face blur and Custom blur, with tracking, shape and timing controls, and the limit on editing videos with... support.google.com Article Blur your videos YouTube Help
  2. Microsoft's guide to the Photos app: Generative Erase (processed on the device, so the photo never leaves it), the Background... support.microsoft.com Article Edit photos and videos in Windows Microsoft Support
  3. Google's guide to Magic Eraser, Unblur, portrait blur and suggested enhancements, with the device requirements (at least 3 GB... support.google.com Article Edit your photos (Android) Google Photos Help
  4. How to add a filled shape over a screenshot or photo on an iPhone, the safe way to hide private details. support.apple.com Article Add text, shapes, stickers, and more with Markup on iPhone Apple Support
  5. Preview's markup tools, including Redaction Selection for removing text from view in a PDF. support.apple.com Article Annotate a PDF in Preview on Mac Apple Support
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