papeloops
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Stamp / watermark

Add a stamp or watermark to your PDF.

Frequently asked questions

Can I add multiple stamps?

Not in a single pass. Run the tool again on the output file to add additional stamps.

What does the diagonal option do?

When enabled, the stamp text is rotated 45 degrees across the page — the classic diagonal watermark look for CONFIDENTIAL or DRAFT marks.

Can I change the font or colour?

Not currently — the stamp uses the built-in style. Custom fonts and colours are on the roadmap.

Are my documents stored anywhere?

Never. Files are processed entirely in server memory and permanently discarded the moment your download completes.