Add Watermark to PDF Free Online
Add a custom text or image watermark to every page of your PDF — free, no sign-up, no watermark added by us, no upload to any server. Live preview updates as you type.
Drag & drop your PDF here
or click to browse
Single PDF file · No sign-up required · Runs entirely in your browser
Preview updates as you change settings. Watermark applies to all pages on download.
Watermarked PDF ready
100% Private — No Upload
All watermarking happens entirely in your browser. Your PDF is never sent to any server, never stored and never seen by anyone else.
Live Preview
See exactly how your watermark looks on page one before applying to every page. Adjust text, colour, size, opacity, rotation and position in real time.
Text & Image Watermarks
Add a custom text watermark like CONFIDENTIAL or your copyright, or upload your own logo. Full control over opacity, rotation, size and position.
How to Add a Watermark to a PDF Online — 4 Simple Steps
Adding a watermark to your PDF takes under a minute with FreeConverto. No account, no watermarks from us — your file never leaves your device. Also try our free PDF merger, free PDF compressor or free PDF splitter.
Upload Your PDF
Drag and drop your PDF or click to browse. The first page loads in the live preview automatically.
Configure Watermark
Choose Text or Image. Set text, colour, font, size, opacity, rotation and position. The preview updates live.
Check the Preview
Review the live preview. Make any adjustments until it looks exactly right before applying to all pages.
Download Free
Click Add Watermark and Download. No sign-up, no server upload, no watermark from FreeConverto.
Frequently Asked Questions
How do I add a watermark to a PDF online for free?
Upload your PDF, configure your text or image watermark using the settings panel, check the live preview, then click Add Watermark and Download. Free, no sign-up, no server upload.
Will FreeConverto add its own watermark to my PDF?
No — FreeConverto never adds its own branding or watermark. Only the watermark you configure is applied.
Can I add an image or logo as a watermark?
Yes — click Image Watermark, upload your PNG, JPG or SVG logo, then adjust the size, opacity, rotation and position. PNG with transparent background works best.
Will my PDF be uploaded to a server?
No — your file never leaves your device. All watermarking runs in your browser using pdf-lib and PDF.js. No data is sent to FreeConverto servers at any point.
What other free PDF tools does FreeConverto offer?
FreeConverto offers a full suite of free PDF tools including a PDF merger, PDF splitter, PDF rotator, PDF compressor and PDF to JPG converter. All 100% free with no sign-up.