PDF Tools

Add Watermark to PDF

Add a text or image watermark to your PDF — securely and directly in your browser. No uploads, no storage, everything happens on your device.

• Files are processed locally (no server uploads).

• Recommended max file size: 40 MB.

• If your PDF is very large, use fewer pages or reduce density/quality for faster processing.

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Drop your PDF here

or click to browse. Then choose text or image watermark and apply to all pages.

Choose PDF

Watermark settings

Browser-only

Pages

Tip: Use range to process only a portion of a large PDF.

Type

Text

Font size

Color

Opacity

Rotation (deg)

Mode

Density Medium

Higher density = more watermarks per page (slower).

Apply watermark

Applies to selected pages of the selected PDF.

Pages: —

Tip: For printing-friendly watermark, use low opacity (0.10–0.20) and medium density.

If your PDF is huge, choose “Single” mode or apply only a page range to speed up processing.