PepsTools

PDF Tools

Add Watermark to PDF

Stamp text across selected pages with size, opacity, color, and optional diagonal rotation.

How to use it

Open a PDF. Set text, size, opacity, color, pages, and diagonal rotation. Build PDF and Download.

Example

Empty page lists mean every page. Text is drawn, not baked as a separate invisible layer.

Input

CONFIDENTIAL, 48 pt, 25% opacity, diagonal

Result

Each chosen page shows a centered translucent stamp

How it works

Helvetica Bold is embedded. The stamp is centered. Diagonal mode rotates 45 degrees. Opacity must be between 0.05 and 1.

Common errors

  • The text box was empty Enter watermark text up to 80 characters.
  • Opacity 0 was refused Use at least 0.05 so the stamp is visible.
  • A page number was invalid Match the page count shown after you load the file.

Limitations

There is no image watermark mode. Preview is the download itself. Encrypted PDFs and oversized files are refused.

Privacy

The file stays in your browser. PepsTools does not upload it, store it, or send it to another service. Clear the tool or leave the page to drop it from memory.

Questions

Can I watermark only page 1?

Yes. Put 1 in the pages field.