Add watermark to PDF
Add custom text watermarks to each page of a PDF, with adjustable font size, opacity, and position
Click to upload Or drag a PDF here
How to use?
- 1
Upload PDF
Click or drag to upload the PDF file to add a watermark to.
- 2
Custom watermark
Enter watermark text and adjust the font size, opacity, and position (a diagonal watermark is recommended for a more professional look).
- 3
Download
Click "Add watermark and download" to automatically download the watermarked PDF.
FAQ
Will files be uploaded to the server?
No. All processing is done locally in the browser, and files never leave your device.
Are image watermarks supported?
The current version supports text watermarks. A future version will support uploading images as watermarks.
Can the watermark be removed?
Watermarks added with this tool are embedded in the PDF content layer and cannot be easily removed by ordinary users, but professional PDF editing software may still be able to remove them.
Are Chinese watermarks supported?
The current embedded font (Helvetica Bold) has limited Chinese support. We recommend using English or full-width characters. Chinese fonts will be supported in a future update.
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