How to decrypt and download documents signed in the private signing process
The process is different depending on whether you’re a signer or the manager of an encrypted document
Once all parties have signed, you’ll be able to view and download the document in PDF and XML format, along with the original unsigned document. If you’re the document manager, you can download it already decrypted from mifiel.com. If you’re one of the signers, the process works differently. We’ll walk through both options below.
Contents
- How to download and decrypt an encrypted document if you are a signer
- How to download a decrypted document if you are its manager
How to download and decrypt an encrypted document if you are a signer
To decrypt the document you signed, you’ll need the e.firma you used to sign it (your .cer and .key files) and its password. This means that if you revoked or renewed your e.firma and got a new one, but you signed the document with your previous e.firma, you’ll need that old e.firma to decrypt it.
Once everyone involved has finished signing, you’ll receive an email letting you know. In it, you’ll find a green button that says 'Proceed to decrypt'. Click it.

Alternatively, if you have a Mifiel account, you can go to the 'Signed' section of the signing portal, find the document you want in the table, and click 'Download'.

A Mifiel page will open where you can decrypt and download the signed document. Select the .key file from the e.firma you used to sign the document, enter your e.firma password, and click 'Decrypt document'.
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If the password is correct, you’ll see a screen letting you know you can download the decrypted PDF and XML. Click 'Download XML and PDF', and both decrypted files will be downloaded.
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Mifiel is requiring me to select the encrypted XML, where do I find it and how do I perform the decryption and download process?
The encrypted XML is attached to the email you received letting you know that all parties had signed the document. Download it.
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On the Mifiel page that asks for the XML to decrypt, select the encrypted XML file.
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Next, select the .cer and .key files from the e.firma you used to sign the document. Finally, enter your e.firma password and click 'Decrypt document'.
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If the password is correct, you’ll see a screen letting you know you can download the decrypted PDF and XML. Click 'Download XML and PDF' and both decrypted files will be downloaded.
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How to download a decrypted document if you are its manager
To download the document, you’ll need the security key you set up earlier.
Go to 'Manage' and click 'Download'. Then choose the version you want.

You can also archive the document in your account. It will no longer appear in the 'Manage' section, but you can still find it by searching for its name or by going to 'View Archived Documents'.
We recommend downloading both versions of the signed document: PDF and XML. The PDF is a representation of the XML file’s contents and has no legal validity on its own. The XML contains the information needed to verify that the signatures are authentic. If the document is ever used in court, this is the file that supports its value as evidence.
You can also click the down arrow and select 'See details' from the drop-down menu. From there, you can archive the document or download its files.

Whichever option you choose, you’ll be asked to enter your personal security key to download the file.
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If the key is correct, the download will start when you click 'Confirm'. The files will be saved to your Downloads folder or to whatever default location you’ve set.
Your key is stored in your browser for a few minutes, so you won’t need to enter it again if you download several documents during that session.