Visible data ≠ hidden data.
Visible pixels and hidden file data are different things. Privacy work often means checking both what people can see and what the file still carries with it.
PDF & Documents
Check this PDF before you send it.
Inspect page count, common metadata and whether an encryption flag is present.
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Stays on your deviceYour PDF stays on your device. This tool reads and rewrites it in your browser.
Useful to know
Four things worth knowing.
Privacy has two layers.
Blur can leave information recognisable, and removing metadata does not hide text, faces, notifications or locations visible inside the image itself.
Check the whole shareable copy.
Open the downloaded PDF and scan the first page, last page, page order and anything you changed.
Export, do not overwrite.
Make a separate sharing copy. Keep the untouched original somewhere private instead of overwriting it.