SignedDocs

SignedDocs is a web-based tool that helps users open and understand digitally signed document formats that are commonly difficult to access. The platform supports multiple international file formats including .p7m, .p7s, .tsd, .zfo, .es3, and more, used across Italy, Germany, Poland, Czech Republic, Hungary, and other countries. Users can drop their signed document file directly into the browser, and the tool reads it locally without uploading sensitive data to servers.

Key features include automatic file format detection, preview of document contents and signer details with a free account, and the ability to extract and download files in various formats with a paid subscription. The tool is designed for anyone receiving digitally signed documents such as official documents, supplier invoices, emails with signatures, or messages from government data boxes. It eliminates the need to install specialized software and provides clear explanations of each file format and its use cases.