Edit
Add a Watermark to a PDF Online for Free
Stamp text onto every page — no upload, no signup, up to 100 MB.
Your file never leaves your deviceDrag & drop your PDF here
or Max 100 MB · Free · Processed entirely in your browserHow to Add a Watermark to a PDF
-
Upload your PDF Drag & drop or browse your PDF.
-
Set your watermark Type your text and adjust size, color, opacity, and angle.
-
Download Save your watermarked PDF instantly.
Stamp it your way
- Private by designYour PDF is processed on your device and never uploaded.
- InstantNo upload queue — your browser does the work locally.
- Free, no signupNo account, no credit card, no trial that expires.
- Live previewSee your exact size, color, opacity, and angle before you stamp a single page.
- Every page, consistentlyThe same watermark is stamped on every page, centered, at the same size and angle.
Frequently Asked Questions
Is it free?
Yes. No signup required.
Is my file safe?
Yes — your PDF is processed entirely in your browser and never uploaded.
Can I use an image or logo as a watermark?
Not yet — this tool stamps text only. Image watermarks are on our roadmap.
Does the watermark go on every page?
Yes. The same text, size, color, opacity, and angle is stamped on every page, centered.
Can I remove a watermark later?
Not with this tool — once stamped, the watermark is part of the page content. Keep your original file if you might need an unwatermarked copy.
Will the watermark cover my content?
It's drawn on top of the page, so lower opacity and a diagonal angle (the defaults) keep it visible without hiding your content.
Max file size?
100 MB.