Is it free to add watermarks?

Yes, this tool is 100% free with no hidden fees or watermarks of its own.

Can I customize the watermark appearance?

Yes, you can set the text, font size, opacity, rotation angle, and color of the watermark.

Yes, the watermark is applied to every page of the PDF document.

All processing happens in your browser. Your files never leave your device.

Each PDF file can be up to 50MB.

Add a text watermark to every page of your PDF. Customize text, size, opacity, and rotation angle. 100% private — processed in your browser.

Drag & drop a PDF file here

Only PDF files accepted. Max 50MB per file.

Watermark your PDF in 3 simple steps.

Drag and drop or click to select a PDF file from your device.

Enter your watermark text and adjust font size, opacity, and rotation angle.

Click 'Add Watermark' and download your watermarked PDF file.

Get the best results when watermarking PDFs.

All processing happens in your browser using pdf-lib. Your files never leave your device.

Use the slider to set watermark transparency. Low opacity keeps content readable while showing the watermark.

Rotate the watermark to any angle. The default -45 degrees creates a classic diagonal watermark.

Your original PDF file remains untouched. Only a new watermarked file is created for download.

Common questions about adding watermarks to PDFs.