Stamp / Logo

Overlay PNG/JPG on every page with position and scale controls。 Runs locally—nothing uploaded.

Choose PDF

Select or drop PDFBase document; pick pages to stamp.

No PDF selected yet.

Stamp image (PNG recommended)

Select or drop imagePNG or JPEG; transparent PNG usually looks best.

No stamp image yet.

PositionScale (relative to image width)Margin (pt)

Convert, compress, merge, split, extract, and organize PDFs with practical browser tools and task guides.

How to use & FAQ

Stamp / Logo: Overlay PNG/JPG on every page with position and scale controls. Runs locally in your browser—PDFs are never uploaded to our servers.

No signup. Combine with merge, split, and compress tools for a full workflow.

Signup required for Stamp / Logo?▾

No. Free with no account.

Is my PDF uploaded?▾

No. Processing stays on your device.

Password-protected PDFs?▾

Use Decrypt PDF first if you know the password.

Quality loss?▾

Most ops preserve content; rasterizing tools note trade-offs on-page.

Mobile browsers?▾

Yes; heavy tasks better on desktop Wi-Fi.

Copy or download?▾

Yes—copy text or download files as supported.