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Watermark PDF Browser-first PDF processing in modern browsers.

Use Watermark PDF when a file should show a draft label, confidential mark, company name, or image watermark across all pages or only a selected range. Upload one PDF, choose the watermark style, and download the updated PDF.

PDF

Leave this blank to watermark the whole PDF, or enter page numbers or ranges like 1,3-5,8.

Use a larger size for broad page stamps and a smaller size for corner marks.

Use short labels like Draft, Confidential, Internal, or a company name.

Text style
Text color
This tool is designed to run directly in your browser with pdf-lib, so your PDF workflow stays local in a modern browser.

Add a Visible Watermark to a PDF

Watermark a PDF when a document should show draft status, confidentiality, brand ownership, or a visible reuse label before it is shared or printed.

The tool applies a text or image watermark to the selected PDF pages and returns one updated PDF file.

How to use Watermark PDF

1

Upload one PDF file.

2

Choose whether to use a text watermark or image watermark.

3

Leave Pages to watermark blank for all pages, or enter a range such as 1,3-5,8.

4

Set the position, opacity, angle, and size or text settings.

5

Click Watermark PDF and download the updated file.

Why this helps in real workflows

A PDF should be marked as Draft before review or approval.

A shared document should display a Confidential label on every page.

A company mark or ownership label should appear on a PDF handout.

A PDF should show a visible watermark before it is distributed externally.

Common problems and fixes

The PDF should show a visible draft or confidential label on each page.

Apply a text watermark to all pages or only the relevant page range.

A branded PDF should include a visible logo or image watermark.

Upload a PNG or JPG watermark image and apply it to the selected pages.

Related tools

All PDF tools PDF Merge PDF Split Rearrange PDF Pages Rotate PDF

Related Guides

When to Add a Watermark to a PDF Best File Format for Resume and Job Application Uploads When to Add Page Numbers to a PDF

Frequently asked questions

How do I watermark a PDF online?

Upload one PDF, choose text or image watermark mode, adjust the settings, click Watermark PDF, and download the updated file.

Can I watermark only some pages?

Yes. Leave the range blank to watermark the full PDF, or enter specific pages or ranges such as 1,3-5,8.

Can I use an image watermark instead of text?

Yes. This version supports both text watermarks and uploaded PNG or JPG watermark images.

Can I adjust the opacity of the watermark?

Yes. Use the Opacity control to make the watermark more subtle or more prominent before downloading the updated PDF.

Can I rotate the watermark text at a diagonal angle?

Yes. Set the Angle field to tilt the watermark. A diagonal angle such as -35 degrees is common for draft and confidential labels.

What image formats work for an image watermark?

Upload a PNG or JPG image. PNG files with transparent backgrounds work best because the transparency is preserved in the watermark overlay.

Do the PDF files leave my browser?

This tool is designed to run in the browser with pdf-lib, so the watermarking workflow stays local in a modern browser session.