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The best use of Preview/Markup is proper redaction of names for posting images to social media: 1. Set Shape Fill color 2. Set Shape Border color 3. Insert a

The best use of Preview/Markup is proper redaction of names for posting images to social media: 1. Set Shape Fill color 2. Set Shape Border color 3. Insert a Rectangle. The rectangle can then be moved/resized/copy/pasted to cover names precisely and won't inadvertently leak names like the spraypaint tool does.

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Jcowell 5y ago
You don’t even have to do this. Preview has a redaction feature. It’s the 3rd option on the left.
josho 5y ago
Be careful with that workflow. If you ever share the modified PDF that rectangle likely hasn't redacted anything. On a digital PDF the underlying text is still accessible, and even if the PDF was a scan, the original image likely hasn't been modified, instead a new shape layer was added.
- minimaxir 5y ago
  True; to clarify this is for images, not PDFs.
- wtetzner 5y ago
  I usually end up printing out the dead-tree version with the black rectangles, and scanning it back in, just to be sure the data under the black rectangles can't be retrieved.
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