P7M Converter

P7M Converter opens, converts and exports digitally signed files to PDF, directly on your Android, without sending anything online.

It supports the most common digital signature and e-invoicing formats:
• P7M / P7S (CAdES)
• ASiC-E and ASiC-S
• Signed PDF (PAdES)
• Signed XML (XAdES)
• Italian Electronic Invoice (FatturaPA): view and convert to a readable PDF

What you can do:
• Import a file with one tap, or open it from Gmail, Drive, file manager and any other app via "Share".
• Export to a clean, printable PDF, ready to archive or send to your accountant.
• Batch convert multiple files at once.
• No sign-up, no account, no upload: everything happens on your device.
• Local history of converted files, always one tap away.
• Works fully offline.
• Minimal interface in English, Italian, French, Spanish and German.
Built for professionals, accountants, companies and individuals who receive signed documents and need to read, save or share them without relying on online services.
Privacy by design: your documents never leave your device.
Have a feature request or trouble with a file? Reach us from the "Ask support" menu — we reply within 72 hours.