Sign or verify PDFs online

The Mobile Phone Signature allows legally secure signing of documents. You can use this tool to sign or verify a signed PDF.The Mobile Phone Signature allows legally secure electronic signing of documents such as contracts, receipts, cancellation notices or forms (in PDF format). You can use this tool to save PDF files with the help of your Mobile Phone Signature or verify a signed PDF.

Open PDF
- From Disk
- From Google Drive - Documents, Spreadsheets and Presentations will be converted to a PDF automatically

Save PDF
- To Disk
- To Google Drive

Verify opened PDF
- Checks if PDF contains a valid Signature and the certificate is trusted

Sign opened PDF
- Sign with the help of the Mobile Phone signature

Install in Google Drive to benefit from the following features
- Open a PDF directly out of Google Drive
- Also works with Google Drive Mobile Apps
- Open Google Docs, Sheets from Drive and automatically convert them to PDF
- Open a PDF out of Google Mail to sign or verify it