PDF Watermark

Stamp a text or image watermark on every page of your PDF. Customize opacity, rotation, size, and position. No uploads, 100% private.

Files never leave your device Text watermark Image watermark Full customization

Drop your PDF here

Select one PDF file to add a watermark

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Watermark Settings

Click to upload image

preview
TL
TC
TR
CL
CTR
CR
BL
BC
BR
Click a cell to position the watermark on each page. Use "CTR" for a diagonal center stamp.

Preview (Page 1)

Applying watermark... 0%

How to add a watermark

1. Upload PDFSelect your PDF file by clicking "Browse PDF" or drag and drop it onto the dropzone.
2. CustomizeChoose text or image watermark. Set opacity, rotation, position, font size, and color. Use Preview to check.
3. DownloadClick "Apply & Download" to stamp all pages and save the watermarked PDF to your device.
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Frequently Asked Questions

Common questions about adding watermarks to PDFs

Is my PDF uploaded to a server? +

No. All watermarking happens entirely in your browser using pdf-lib. Your file never leaves your device.

Will the watermark appear on all pages? +

Yes. The watermark is applied to every page of the PDF with the same settings.

What image formats work for image watermarks? +

JPG and PNG are supported. PNG with a transparent background is recommended so only the logo/signature appears without a white box around it.

Can I set custom opacity and rotation? +

Yes. Use the Opacity slider (5%–100%) and Rotation slider (−180° to +180°) to get the exact look you want. The preview updates in real time so you can fine-tune before downloading.