PDF Watermark
Stamp text or a logo onto every page of a PDF, with a live preview as you adjust it. Nothing is uploaded anywhere.
Add a Watermark to Any PDF
Stamp a text label or your logo onto every page - processed locally, with no upload involved.
Mark It as Yours
Stamp your name, brand, or logo across a document before sharing it publicly.
Adjust It Your Way
Move it, resize it, rotate it, or change the opacity, font, and color until it looks right.
Processed Locally
The file never leaves your browser during the whole process.
See It Before You Save
A live preview updates as you tweak the settings, so there's no guesswork.
How to Add One
- Upload your PDF: Click "Select Document" and choose the file.
- Pick a watermark type: Go with plain text, or upload a logo image instead.
- Fine-tune it: Set the position, size, rotation, opacity, font, and color until it looks right.
- Save it: Click "Download Watermarked PDF" to get your file.
When a Watermark Actually Helps
- Protecting your work: Makes it harder for someone to pass off your document as their own.
- Branding: Every copy that gets shared carries your name or logo with it.
- Labeling status: Mark a file clearly as "Draft," "Confidential," or "Sample."
- Adding a disclaimer: Stamp a legal notice across every page automatically instead of doing it by hand.
Frequently Asked Questions
Is it free?
Yes, no account needed and no fee - and we don't add our own branding to your file either.
Can I use my own logo instead of text?
Yes - switch to Logo mode and upload a PNG or JPG to use as the watermark image.
Does the file get uploaded anywhere?
No - the watermarking happens locally using the pdf-lib library, so the file stays on your device throughout.
Can I rotate the watermark?
Yes - use the Rotation slider to angle it anywhere from 0 to 360 degrees, which is useful for a classic diagonal watermark look.