Add a Watermark to PDF
Stamp “CONFIDENTIAL”, “DRAFT” or your brand across every page.
Select Or Drag & Drop PDF Here
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Protect a draft or brand a document with PDF Boy's Watermark PDF tool. Type your text, choose a colour, size, opacity and angle, and it is stamped across all pages (or only the ones you choose) — entirely in your browser.
How to use Watermark PDF
- Select your PDF.
- Type the watermark text and pick colour, size, opacity and angle.
- Click Add Watermark and download the stamped PDF.
Frequently Asked Questions
How do I add a watermark to a PDF?
Upload the PDF, type your watermark text, adjust the look and click Add Watermark.
Can I watermark only certain pages?
Yes. Enter pages like 1-3,5 in the Pages field; leave it blank to watermark every page.
Does the watermark support any language?
The text must use Latin letters, numbers and common symbols. Other scripts aren’t supported by the built-in PDF fonts.
Is the Watermark PDF tool free and unlimited?
Yes. PDF Boy's Watermark PDF tool is completely free, with no signup, no watermark and no limit on how many files you process.
Are my files uploaded to a server?
No. Everything happens locally in your browser, so your files never leave your device.