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Watermark PDF

Lay diagonal text across every page to mark a document as draft or confidential.

Your file stays on your device.
Drop your PDF here
or choose a file
Accepted: PDF • up to 100 MB
No upload required Processed locally in your browser
Drag & drop works too.
PDF
annual-report.pdf
4.8 MB • 32 pages • PDF 1.7
Watermark text
Drawn diagonally across the centre of every page.
Strength
PDF annual-report.pdf
Browser WebAssembly
PAGES extracted
Converting your document…64%
Processing securely in your browser. Your file never leaves this device.
✓
Your pages are ready Processed locally — nothing was uploaded
PDF
annual-report-p1-3.pdf
4.9 MB • Ready to download
Done

We couldn't convert this file

The document may be encrypted, damaged, or use an unsupported PDF structure. Try another file or check our guide for common fixes.

Your original file was not changed.
quarterly-deck.pdf
2.1 MB • 18 pages — waiting
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How to use Watermark PDF

  1. 1Choose your PDF — drop it or click Choose PDF
  2. 2Type your text — and choose how strong it should look
  3. 3Download the result — watermarked pages, processed locally

Why Enclodoc

  • ✓ Files stay on your device — closed tab clears memory
  • ✓ No unnecessary uploads and no server copies
  • ✓ Fast browser processing — no queues
  • ✓ Works without account for supported free usage

If a file ever needs a server step, we ask first — never silently.

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FAQ — Watermark PDF
✓Done