SignedDocs

SignedDocs is a web-based tool that helps users open and understand digitally signed document formats that are difficult to access. Supporting formats like .p7m, .p7s, .tsd, .zfo, .es3, and others commonly used across Europe, the platform identifies file types and extracts their contents directly in the browser without uploading your files to servers.

The service offers a free account with Google sign-in that provides document preview and signer details, while paid features enable full document downloads, PDF conversion, and printing. It's particularly useful for business users, suppliers, and individuals receiving official documents from government or corporate systems in countries like Italy, Germany, Hungary, and Czechia.

Key features include automatic file format detection, signer information display, document package extraction, timestamp verification, and support for encrypted or signature-only files. The tool prioritizes privacy by processing files locally in your browser rather than on remote servers.