Privacy policy
Cert Sign is designed around local processing. This page explains what stays on your device, what may leave it, and how you can control your data.
PrivacySecure PDF signing on iPhone
Sign PDFs with your certificate or by hand
Import a .p12 or .pfx certificate, place a visible signature on the page, and export a signed PDF copy without changing the original file.
Why Cert Sign
- Import .p12 and .pfx certificates for local PDF signing.
- Scan paper into PDF, place the signature precisely, and share the signed copy.
- Certificates, passwords, preferences, and history stay on your device.
Support
Need help with Cert Sign? Email support and include enough detail so we can reproduce the issue quickly.
ge0rg3os@gmail.com