Fingerprint PDF
Stamp each copy with a hidden ID to trace leaks
A deterrent, not forensic tracking: the ID is stored in the file's metadata and as near-invisible text on every page. Re-printing to a new PDF, flattening, screenshots, or stripping metadata can remove it. Run one copy per recipient.
Drop a file here, or tap to browse
Accepts: .pdf · Max 300 MB · Or paste from clipboard
Questions
FAQ
How strong is this?
OfflinePDF's Fingerprint PDF tool is a deterrent. The ID sits in the metadata and as near-invisible text, so Extract Text can read it. Printing to a new PDF, flattening, screenshots, or stripping metadata with the Privacy Scanner can remove it.
Where is the ID stored?
OfflinePDF's Fingerprint PDF tool shows the ID on screen once and does not store it anywhere. Write it down next to the recipient's name — nothing is saved on a server.
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