PDF tool · Runs 100% in your browser
Add Watermark
Brand a draft, mark a document confidential, or stamp copies before they travel — one diagonal watermark across every page.
Drop a PDF file here
or click to choose it from your device · PDF only · processed locally
Add a PDF file to watermark.
How to add watermark
- Add your PDF. The watermark lands on every page, so check page one speaks for all.
- Type the watermark text — CONFIDENTIAL, DRAFT, your company name, anything.
- Set size and transparency. Subtle (15%) for working drafts, bolder for copies leaving the building.
- Press Add watermark and download the stamped document.
Good to know
The text is drawn onto each page at a 45° angle in mid-grey, sized to sit across the page's middle. Because it becomes part of the page content, it prints with the document and cannot be switched off in a reader — that is the point of a watermark. Keep your unwatermarked original if you might need a clean copy later.
Frequently asked questions
Can the watermark be removed later?
Not easily — it is baked into every page. Always keep the clean original if removal might be needed.
Can I watermark with a logo image?
This tool stamps text, which covers most office needs. Image watermarks are on the roadmap.
Does it stamp only some pages?
It stamps every page evenly — split the PDF first if only part of the document needs marking.
Is my document uploaded?
No, the stamping happens in your browser tab.
Keep going