Watermark PDF
Add diagonal text watermark to every page.
Runs in your browserFree — no signup
How to use Watermark PDF
Watermark PDF lets you add diagonal text watermark to every page without installing Acrobat or uploading confidential documents. The PDF is opened and rewritten inside your browser tab.
Step by step
- 1Add your PDF (drag and drop, or click to browse).
- 2Page thumbnails and document details load so you can confirm you picked the right file.
- 3Choose your pages, ranges or options.
- 4Preview the result, then download the new PDF.
What to expect
- Page thumbnails so you can verify the document visually before and after.
- A step timeline showing what happened — pages read, pages written, file rebuilt.
- The original file is left untouched; you always get a new PDF.
- Most documents finish instantly; 500+ page files may take a few seconds.
Common use cases
- Preparing a contract, invoice or report before sending it.
- Assembling scanned pages into a single tidy document.
- Extracting just the pages a colleague or portal actually needs.
- Fixing a PDF that a scanner or printer produced badly.
Privacy & data
Everything runs locally in your browser. Your file is never uploaded to a server, so nothing leaves your device.
Frequently asked questions
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