PDF Watermark
Stamp custom text watermarks on every PDF page with font size, color, opacity, and rotation. Download a watermarked copy locally.
Stamp confidential labels on PDF pages
Watermarks make it obvious when a document is a draft, confidential, or not for redistribution. This tool draws a text overlay on every page with pdf-lib, so the original file never leaves your browser.
Placement and opacity tips
Diagonal center placement is the hardest to crop out. Use lighter gray at 20 to 40 percent opacity when readers still need to study the content underneath. Corner labels work well for subtle attribution, while large centered text suits VOID or DRAFT markings.
Pair with PDF Password Adder when you also need encryption, or PDF Metadata Editor to set authorship before publishing.
Frequently Asked Questions
Can I watermark only one page?
Currently every page receives the same stamp. Split the PDF first if you need a single-page mark.
Will this remove an existing watermark?
No. It only adds a new overlay. Embedded watermarks from other tools are not stripped here.
Does the tool support image logos?
This release focuses on text watermarks. Use an image editor for logo tiles if you need bitmap artwork.
Is the output file larger?
Only slightly. A text overlay adds minimal bytes compared with the original PDF.
Are password-protected PDFs supported?
Unlock the PDF first. Encrypted files cannot be loaded until the password is removed.
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