# Sign PDF

Canonical page: https://www.convertexpress.com/sign-pdf

Place a visible PNG or JPG signature image on one selected PDF page. This does not create a cryptographic digital signature.

## Use case

Add a visible signature image to one selected page of a PDF.

## Steps

1. Choose the supported PDF document or documents.
2. Review the sign pdf options shown above.
3. Run the tool, download the new copy, and inspect the result.

## Limitations

The mark is a picture, not a certificate-backed digital signature. Choose the page and inspect the result so it does not cover important text.

Processing happens in the browser. No file upload is required for this local tool. The web interface and libraries are downloaded from the site. Device/browser limits apply.