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How to digitally sign a file using a Smart Card and Sim Card Token

FirmaCerta graphic interface is simple and intuitive.

The menu is made up of the main functions of software:

  • Digitally sign any files
  • Affix Timestamp
  • Use the Graphometric Signature
  • View and Verify digitally signed files

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Here's how to digitally sign a document

FirmaCerta can be used to sign any document using one of the following methods:

  • Drag & Drop: Drag the file(s) to be signed to the FirmaCerta software window, let go, and then click the SIGN icon; multiple files can be dragged and dropped simultaneously.
  • From the file: Use the mouse to right-click directly on the icon of the file(s) to be signed and select “Sign” from the drop-down menu.
  • Via the software: Click the SIGN icon directly to search your computer for the file you want to sign.

Upload the file to be signed to the programme, and click SIGN.  

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N.B. The FirmaCerta software allows users to sign any type of file in CAdES format (i.e. .p7m); in the case of PDF or XML files only, a message will appear on the screen asking whether to sign in .p7m format or maintain the original file format.

 

If signing a PDF or XML file, once the user clicks "sign", a window will appear asking them to specify the format to use to sign the document.

  • Press Yes to apply a PAdES (or XAdes) signature, maintaining the .pdf or .xml format
    (for more information see PAdES signature and XAdES signature)
  • Press No to apply a CAdES signature, in .p7m format.

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Select a destination folder for the signed file, then click OK

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Proceed with the signing operation by pressing Yes

N.B. We recommend creating a dedicated folder in which to save the digitally signed files.


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Enter the PIN of the digital signature device and click OK

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Once the operation has been processed, click OK to complete the procedure.

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