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Watermark PDF Online Free — Add Text or Image Watermark | AziPDF

AziPDF Watermark PDF stamps a text or image watermark onto every page of your PDF document. Customize the watermark text, font, size, opacity, color, rotation angle, and position. Watermarks are applied locally in your browser without uploading your file to a server. Free with no limits.

Create

100% Free & Secure

PowerPoint to PDF

WatermarkPDF file

Stamp an image or text over your PDF.

or drop PDF file here

How to do

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3 quick steps to watermark your PDF.

1

Upload your PDF files

Select up to 12 PDFs to stamp at once, or drag and drop them into the browser. Every file is processed on your device, never uploaded to a server.

2

Choose text or image, then style it

Type a text watermark and set its font size and color, or upload a PNG/JPG logo. Pick one of 9 positions or tile it across the page, then adjust opacity and rotation.

3

Apply and download

Stamp the whole document or a custom page range like "1-3, 5", then download instantly — a single PDF, or a ZIP if you watermarked several at once.

FAQs

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Answers about watermarking PDFs online.

Yes. 100% browser-based process — your files are never uploaded to any server.

Yes. Switch to Image mode and upload a PNG or JPG. Transparent PNGs work best.

Yes. Choose "Custom" under page range and enter something like "1-3, 5".

Yes. Enable "Tile across page" to repeat the watermark in a grid instead of placing it once.

Yes. Upload up to 12 PDFs — they'll all get the same watermark and download as a ZIP.

No. AziPDF is completely free with no watermarks on the tool itself, no limits, and no signup.

Yes. Text watermarks let you set the font size, color, opacity, and rotation angle to match how visible you want the stamp to be.

No. The watermark is added as a new layer on top of the existing pages — the original content and resolution stay unchanged.

Yes. 100% browser-based process — your files are never uploaded to any server.

Yes. Choose "Custom" under page range and enter something like "1-3, 5".

Yes. Upload up to 12 PDFs — they'll all get the same watermark and download as a ZIP.

Yes. Text watermarks let you set the font size, color, opacity, and rotation angle to match how visible you want the stamp to be.

Yes. Switch to Image mode and upload a PNG or JPG. Transparent PNGs work best.

Yes. Enable "Tile across page" to repeat the watermark in a grid instead of placing it once.

No. AziPDF is completely free with no watermarks on the tool itself, no limits, and no signup.

No. The watermark is added as a new layer on top of the existing pages — the original content and resolution stay unchanged.

Yes. 100% browser-based process — your files are never uploaded to any server.

Yes. Enable "Tile across page" to repeat the watermark in a grid instead of placing it once.

Yes. Text watermarks let you set the font size, color, opacity, and rotation angle to match how visible you want the stamp to be.

Yes. Switch to Image mode and upload a PNG or JPG. Transparent PNGs work best.

Yes. Upload up to 12 PDFs — they'll all get the same watermark and download as a ZIP.

No. The watermark is added as a new layer on top of the existing pages — the original content and resolution stay unchanged.

Yes. Choose "Custom" under page range and enter something like "1-3, 5".

No. AziPDF is completely free with no watermarks on the tool itself, no limits, and no signup.