Stamp text diagonally across every page — DRAFT, CONFIDENTIAL, or your company name — before a document leaves your hands.
How to add a watermark to a PDF
- Choose a PDF.
- Type the text you want stamped.
- Download the watermarked PDF.
What happens to your file
- Never kept
- Your original is wiped the instant the conversion finishes.
- 60 minutes
- The result is deleted automatically — or the moment you say so.
- No watermark
- Nothing is ever stamped on your document.
- No sign-up
- Five conversions a day free; an account simply removes the limit.
Questions
Can somebody remove the watermark?
It is drawn into the page content rather than added as a layer that can be switched off, so it is not trivial to strip. Treat it as a clear deterrent rather than as security — for genuine access control use Protect PDF.
How does the watermark look?
Semi-transparent text, rotated 45 degrees and centred on every page, so it is legible without hiding the document underneath.
Can I use a logo instead of text?
Text only at the moment.
What happens to the files I upload?
Your original is deleted the moment the conversion finishes, whether it succeeded or not. The converted file stays available for 60 minutes so you can download it, then it is deleted automatically. You can also remove it instantly with the Delete file now button.
Do I need an account, and is there a watermark?
No account is needed for five conversions a day, and a free account removes that limit. Nothing is ever stamped on your document — there is no watermark on any tool, signed in or not.
Does it work on a phone?
Yes. Everything runs in the browser on a phone, tablet or computer, with no app or plugin to install.