Dike, a free and easy-to-use program, is one of the most widely used tools for opening and verifying p7m files. Its usage is extremely simple. To install it, you first need to download it from the InfoCert website. Then, you need to confirm the suggested options.
Opening a p7m File as a PDF
To open a p7m file as a PDF using Poste Italiane, follow these steps:
- Access the PosteCert website.
- Click on the "Choose a signed file" button.
- Select the p7m file using the File Explorer/Finder window that opens.
Converting p7m Files to PDF Using a Free Online Service
MKT.IT is a dedicated online solution for electronic invoices that allows you to view xml or p7m files. You can view p7m files and export the invoice as a PDF on their website. The usage is easy and straightforward.
Using Poste Italiane to Open p7m Files
To open a p7m file using Poste Italiane, follow these steps:
- Click on "Browse" and then "Open" to choose the file saved on your computer.
- If prompted, press the "Confirm" button (or "Accept and Verify" or "Verify", depending on the certifying entity used).
Opening p7m Files on a Smartphone
By downloading a specific application, such as "Visualizzatore Fattura Elettronica", you can open p7m files on your Android smartphone. This free app can be downloaded from the Play Store or other app stores and allows you to view the content of the invoice within an XML file.
Using Aruba Key to Read a p7m File
Drag a p7m file onto the Aruba Key icon to verify it. The "Documents" folder contains additional information about digital signatures in PAdES format. This method is limited to PDF files.
How does Poste’s Digital Signature Work?
To use Poste’s digital signature, you will need to download and install the free software, firmaOK!, on your computer. You can then use this program to digitally sign any type of file. To complete the signing process, you will be asked to enter a verification OTP code and your Firma PIN, which you will receive via SMS to the mobile number specified during enrollment.
How to Use Poste’s Digital Signature
To use Poste’s digital signature:
- Insert the Smart Card into the reader.
- Open the digital signature module.
- Choose the document you want to sign.
- Select the type of signature to use.
- Enter the PIN.
Using Firma OK Post
- Select the certificate that will be used to sign the timestamp request, which can be found under "SURNAME NAME".
- Enter the PIN of the cryptographic device connected to the PC, such as a smart card or USB token.
- Click "OK" to proceed.
- Sign OK when the timestamp operation is complete.
How to Read p7m Files Online
The PosteCert online service allows you to read a p7m file online without the need to install any software. Simply select the desired .p7m file, click on "Attach", and click the appropriate button to verify the signature.