Drag & drop or browse
Max 50 MB per file
How to add a watermark to a PDF online
- 1
Upload your PDF using the area above.
- 2
Enter your watermark text and adjust the settings (opacity, size, angle).
- 3
Click 'Add Watermark'.
- 4
Your watermarked PDF downloads automatically.
Frequently Asked Questions
Can I customise the watermark text?
Yes. Enter any text and adjust the opacity (0–100%), font size, and rotation angle to your preference.
Is the watermark applied to every page?
Yes. The watermark is placed on all pages in the PDF.
Can I add an image watermark?
This tool supports text watermarks only at this time. Image watermarks are not currently available.
Will the watermark affect text readability?
You can set the opacity very low (e.g. 20–30%) to make the watermark subtle and non-intrusive.
Are my files uploaded to a server?
No. All processing runs in your browser. Your files never leave your device.