Watermark PDF
Add a custom text watermark to all pages of your PDF document. Customize the text, size, color, opacity, and rotation angle. Everything runs in your browser — your files stay private.
Runs 100% in your browser
Files never leave your device
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About Watermark PDF
Add a custom text watermark to every page of your PDF. FastConvert's Watermark PDF tool lets you customize the text, size, color, opacity, and rotation angle. Protect your documents, mark drafts, or add branding — all without leaving your browser.
Frequently Asked Questions
Can I customize the watermark appearance?
Yes. You can adjust the text, font size, color, opacity, and rotation angle.
Is the watermark added to every page?
Yes. The watermark is applied to all pages of your PDF.
Can I preview the watermark?
Yes. You can preview the watermark on your document before downloading.