UtilityKit

40+ fast, free tools. Most run in your browser only; Image & PDF tools upload files to the backend when you run them.

PDF Watermark

Stamp semi-transparent text across every page server-side

About PDF Watermark

PDF Watermark applies semi-transparent text stamps across every page so reviewers instantly recognise drafts, confidential bundles, or internal-only variants. Choose wording, opacity, and corner alignment right in the browser, send the file through HTTPS for rendering, and retrieve a ready-to-share PDF seconds later.

Why use PDF Watermark

  • Mark drafts before external review.
  • Add subtle confidentiality reminders without desktop apps.
  • Batch-friendly defaults keep typography readable.

How to use PDF Watermark

  1. Upload your PDF.
  2. Edit watermark text, opacity, and corner placement.
  3. Apply and download the stamped PDF.

When to use PDF Watermark

  • Legal teams circulating preliminary agreements.
  • Educators marking student-visible drafts.
  • Sales collateral needing light CONFIDENTIAL labels.

Frequently Asked Questions

Does watermarking reduce quality?

pdf-lib redraws vector pages with an overlay; raster pages stay raster aside from the stamp.

Can I watermark encrypted PDFs?

Decrypt them first or unlock with our unlock tool using the correct password.

Where are files processed?

Uploaded briefly to UtilityKit's backend and deleted immediately after the download starts.

Can I remove someone else's watermark?

Only use this on documents you own or have permission to edit.

Is PDF Watermark free?

Yes — no account required.

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