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Add watermark
Mark documents as drafts, protect previews, or label confidential files with a clear text stamp on every page.
How to add watermark
- Choose your PDF.
- Type the watermark text and choose its size, colour, opacity and angle.
- Click “Add watermark” and download the stamped PDF.
Your files stay private
Add watermark runs entirely in your browser. Your documents are never uploaded, stored or seen by anyone. You can even disconnect from the internet once the page has loaded.
Frequently asked questions
Can the watermark cover the whole page?
Yes. Choose “Tiled” placement to repeat the text across every page.
Which characters can I use?
Latin letters, numbers and common punctuation are supported.
Will the watermark hide my content?
Keep the opacity low — 15 to 30% — so the text underneath stays readable.