ApriP7M
In-depth reviewApriP7M is a web application for opening and viewing digitally signed P7M, M7M, TSD, and XML (electronic invoice) files. It extracts the original document, displays signer information, and renders electronic invoices in a readable format directly within your browser, ensuring files remain on your device.
ApriP7M, as it opens in a browser tab.
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How to install ApriP7M as a PWA
Screenshots
Why we recommend ApriP7M
ApriP7M earns a recommendation for its commitment to user privacy and local processing. Unlike services that require file uploads, ApriP7M decodes and displays documents directly in your browser, explicitly stating that "i file non lasciano mai il tuo dispositivo." It supports various signed file types, including .p7m, .m7m, .tsd, and .xml for electronic invoices. The application extracts the signed document, shows signer details (name, tax code, certification authority), and verifies local integrity. For electronic invoices, it presents the complex XML in a clear, readable format, with options to print or save as PDF. Its browser-based nature allows it to function across Windows, Mac, Linux, iPhone, and Android, and can be 'installed' to open files via double-click.
Best use cases
Best for: Individuals and businesses needing to open and verify digitally signed documents and electronic invoices (FatturaPA) securely, without uploading sensitive files to external servers. Ideal for users who receive .p7m, .m7m, .tsd, or .xml files via PEC (certified email) or from fiscal drawers and require an immediate, privacy-conscious way to access their content. Also suitable for professionals who need to extract PDFs, view signer information, or process multiple files with the 'Pro' version.
Honest limitations
ApriP7M is not designed for full legal validation of digital signatures, as it controls document integrity but does not consult trust lists or revocation lists. While it offers a free tier for single-file processing, advanced features like opening multiple files, processing folders or ZIP archives, and generating Excel/CSV registers for invoices require a one-time 'Pro' payment. It explicitly states that there is no service worker, therefore it does not support offline use if the browser page is closed.
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