Watermark PDF
Add text or image watermarks to PDF pages
Drop files here or click to browse
Supports: .pdf (max 50.0 MB)
Add Watermark to PDF Online - Free PDF Watermark Tool
Add custom text or image watermarks to your PDF documents with FileMuncher's free watermark tool. Perfect for branding documents with your company logo, marking files as Draft or Confidential, or adding copyright notices to shared documents. Customize position, size, opacity, rotation, and color to get the exact look you need.
Your PDF stays completely private because all watermarking happens directly in your browser. No files are uploaded to any server, making this ideal for stamping confidential contracts, internal reports, or sensitive business documents. The watermark is permanently embedded in the PDF output.
Choose from text watermarks with custom fonts and colors, or upload your own image as a watermark. Position the watermark anywhere on the page with precise controls for offset, angle, and transparency. The tool applies the watermark to all pages or just the pages you select. Download the watermarked PDF instantly, ready to share or archive.
How to Add a Watermark to a PDF
Upload PDF
Add the PDF file to watermark
Design Watermark
Choose text or image and customize style
Apply
Click Apply to add the watermark
Download
Save the watermarked PDF
Frequently Asked Questions
Can I add both text and image watermarks?
Yes. You can choose between a text watermark with custom font, color, and size, or upload an image file like a logo to use as the watermark. Position and opacity are adjustable for both types.
Will the watermark appear on every page?
By default, the watermark is applied to all pages. You can also choose to apply it only to specific pages if you prefer.
Can I make the watermark semi-transparent?
Yes. You can adjust the opacity from fully transparent to fully opaque. A lower opacity value makes the watermark subtle while still visible, which is common for Draft or Confidential markings.
Is my PDF uploaded to a server?
No. All watermarking happens locally in your browser. Your documents never leave your device, ensuring complete privacy for confidential files.
Can I position the watermark diagonally?
Yes. You can rotate the watermark to any angle, including the popular diagonal placement across the page. Combined with transparency controls, this creates professional-looking document markings.