Local processing · files stay on your device

Watermark PDF

Add a text or image watermark to selected pages with adjustable opacity and size.

How to use Watermark PDF

  1. Choose a file (PDF) from your device.
  2. Set watermark type, watermark text, text size (points), watermark image, image scale (% of page width), opacity (%), pages.
  3. Run the tool, inspect the result, and download your output.

What this tool does

Add a text or image watermark to selected pages with adjustable opacity and size. Your original files are unchanged. Keep a copy and check the downloaded result before relying on it.

Text or image watermarks

Choose Text to enter your own label and set its font size, or choose Image to use a PNG or JPG. Either way, adjust the opacity and pick which pages receive the watermark.

Image size and format limits

Use PNG or JPG images up to 20 MB and 20 megapixels. The scale control sizes the image as a percentage of each page width and keeps it centered.

Questions about Watermark PDF

Are my files uploaded?

This tool processes files in your browser. File contents are not uploaded to FileToast. Downloads stay wherever you save them.

Can I watermark only selected pages?

Yes. Enter a page range and adjust the watermark text or image, size, scale, and opacity before processing.

Can I use an image instead of text?

Yes. Choose Image, select a PNG or JPG, and set the scale and opacity. The image is centered on each selected page.

Does a watermark protect confidential information?

No. A watermark labels pages; it does not redact their contents or prevent copying.

What are the file and processing limits?

Up to 50 MB per file. Large or complex files can exceed your device’s or the converter’s capacity.

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