PDF Watermark
Free online PDF watermark tool. Add custom text watermarks with font size, opacity, color, rotation control. Perfect for confidential stamps, copyright notices. Local browser processing, no signup, no upload.
Click to upload or drag and drop
Max file size: 10MB
How to Use PDF Watermark
- 1Upload your PDF file
- 2Enter the watermark text you want to add
- 3Adjust font size, opacity, color, and rotation angle
- 4Preview the watermark position and appearance
- 5Click Apply and download the watermarked PDF
Frequently Asked Questions
Can I add image watermarks or only text watermarks?
Currently text watermarks are fully supported. You can customize font size, opacity, color, and rotation angle for the text overlay. Image watermark support may be added in a future update.
Will the watermark make the original text hard to read?
Not if you adjust the opacity properly. Typical opacity settings of 10-20% ensure the watermark is visible but does not obscure the underlying content. You can preview and adjust before applying.
Can I add watermarks to multiple pages at once?
Yes, the watermark is applied to every page of your PDF automatically. You can add a consistent text watermark across all pages in one operation, with the same styling on each page.
Is PDF Watermark free, and do I need to sign up or upload my files?
PDF Watermark is 100% free to use with no signup, no registration, and no usage limits. All processing happens locally in your browser - your files and data never leave your device, so no upload is required and your privacy is fully protected.