Can I use my logo as a watermark?
Not currently. Text only.
Watermark PDF
Add a visible status mark to your pages.
Choose a watermark label, opacity, position, and rotation, then apply it across the document or only selected pages.
This file never leaves your device
Processing happens entirely in your browser. Nothing is uploaded, nothing is stored, nothing is sent to us. Close the tab and it's gone.
Check for yourself — open DevTools, go to the Network tab, and run the tool. You'll see no upload.
Apply to all pages
Action panel
Use a text watermark to mark drafts, confidential files or company branding across selected pages.
Free for everyone, no login required.
Processing happens in your browser. Your file is never uploaded.
What this tool does
Adds a text watermark across your pages. Control the text, opacity, rotation and position, and apply it to every page or only selected ones.
When to use Watermark PDF
- • Draft control. Marking a document "DRAFT" prevents an unfinished version being mistaken for a final one — a genuine risk once a file has been forwarded a few times.
- • Confidentiality. "CONFIDENTIAL" on every page is a standard requirement for documents circulating under an NDA or internally within a business.
- • Copy control. Marking a document "COPY" distinguishes it from an original, which matters for certificates, invoices and certified documents.
- • Attribution. Adding your organisation's name to a document you are circulating.
Why it is useful
- • It signals status and access level without changing the underlying document.
- • It helps prevent mistaken sharing of draft or confidential content.
- • It makes it clear when a file is for reference only rather than final use.
How to use Watermark PDF
- 1. Upload your PDF.
- 2. Add the watermark text and choose the opacity, angle, and position.
- 3. Choose all pages or selected pages.
- 4. Export the watermarked PDF and download it.
Privacy and safety note
pdf-lib draws the text onto each page at the opacity and angle you specify. The watermark becomes part of the page content. Everything runs in your browser.
Frequently asked questions
Can the watermark be removed by the recipient?
It is part of the page content, so it cannot simply be toggled off. Determined removal is possible with editing software, as with any watermark.
Will it appear when printed?
Yes.
Can I watermark only some pages?
Yes. Select which pages before applying.
Is anything uploaded?
No.