Add PDF Watermark
Stamp text or image watermarks onto PDF pages
How It Works
Select Your File
Upload, drag & drop, or paste directly from clipboard.
Configure Options
Set quality level and output format.
Download Result
Processed entirely in your browser. Download instantly.
About Add PDF Watermark
Add a text or image watermark to every page of a PDF document directly in your browser. Choose the watermark text (e.g. "CONFIDENTIAL", "DRAFT"), font size, opacity, rotation angle, and position. Alternatively upload a logo image to use as a watermark. PDF-lib applies the watermark locally in your browser on your device –no server upload. Ideal for protecting intellectual property, marking draft documents, branding PDFs with a company logo, or indicating document status. The watermarked PDF is available for immediate download. The original file on your device is not modified.
Frequently Asked Questions
Can I use an image as a watermark?
Yes. Upload a PNG or JPEG logo to use as an image watermark alongside or instead of text.
Can I control watermark opacity?
Yes. An opacity slider lets you choose from nearly invisible to fully opaque.
Is the watermark editable or removable by recipients?
The watermark is embedded as PDF content. Advanced PDF editors could remove it, but it is not trivially editable.