Watermark PDF

Stamp watermarks beautifully.

Add a text or image watermark with adjustable size, opacity, and position — with a live preview before you export.

Drop a PDF here, or click to browse

Drag, resize and rotate the watermark right on the page

Files never leave your device.
Lightning fast
Privacy guaranteed
Lossless quality

Files never uploaded

Processed entirely in your browser.

No retention

Nothing stored — nothing to delete.

Private by design

No accounts required, no tracking of your files.

Why creators choose FormatLayer

Fast, lossless processing

Preserves text, fonts, and vector graphics — no quality loss.

Works on every device

Drag, drop, and download from desktop or mobile. No installs, no plugins.

100% private by design

Everything runs locally in your browser. Your files never leave your device.

What you get with Watermark PDF

Why people use it

Brand every page with your logo

Mark drafts and confidential documents

Watermark hundreds of pages in one pass

How it works

  1. 1

    Upload a PDF

  2. 2

    Add text or upload a watermark image

  3. 3

    Adjust position, size, opacity — then export

When to use Watermark PDF

Real-world use cases

Who uses Watermark PDF?

From classrooms to legal desks, here's how different teams put Watermark PDF to work every day.

Pro tips

  • Use 30–50% opacity so watermarks read without hiding content
  • Diagonal 45° watermarks are hardest to remove visually
  • Transparent PNG logos look cleaner than JPG
  • Everything runs in your browser — nothing is uploaded, so it's safe for confidential, financial, and legal PDFs.

Best practices

  • Watermark AFTER final edits, never before
  • Keep an un-watermarked master copy

Common mistakes to avoid

  • 100% opacity — hides the underlying text
  • Tiny watermarks that don't survive screenshots

Frequently asked

Related tools