Fingerprint PDFs per Recipient (Leak Tracing)
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Related tools
Watermark PDF
Stamp text such as CONFIDENTIAL or DRAFT on pages.
PDF Metadata
View, edit or clear title, author and other properties.
How to use Fingerprint PDF Copies
- Choose the PDF.
- Type the recipients, one per line.
- Create the copies and download the ZIP (it includes the ID list).
- To trace a leak, switch to Check a leaked file and choose the PDF.
What to expect
New copies are created. The ID list is only in your download; nothing is saved by this site.
- The marks are text. Printing, screenshots or re-saving through another tool removes them, so this is a deterrent, not copy protection.
- Keep the ID list private and safe: without it an ID means nothing.
- Tell recipients that copies are individually marked; that discourages leaks and is the honest approach.
Frequently asked questions
Is this digital rights management?
No. It identifies a copy; it does not stop copying.
Is my PDF uploaded anywhere?
No. The PDF is processed by JavaScript in your browser. Only the website's own code and assets are downloaded, and you can check this in your browser's network panel.
Do I need to create an account?
No. Every tool works without sign-up or login.
Is it safe for confidential documents?
Files are processed locally in your browser and never uploaded. Close the tab or select Clear to release them from memory.