Why doesn’t macOS allow me to do the installation?

It is possible that after downloading the package, trying to install it on a MacOS computer you get the following dialog window:

macOS is usually configured to install only software from the Apple Store. To install Valid Desk, hold down the [ctrl] key and click on the Valid Desk package file you downloaded:

Now if you open the file using the menu, the dialog box that appears is slightly different and presents an additional button with which you can proceed with the installation of the package.

Why on MacOS Catalina the application asks to record keyboard activity?

With macOS Catalina any access to data by an app must be authorized. The Valid Desk app does not need to record keyboard activity, so you can respond negatively to this request. (The reason why the request appears is due to a defect in the JavaFX library that will have to be corrected by Oracle in the next versions.)

Which macOS versions are Valid Desk compatible with?

Valid Desk is compatible with macOS Sierra (10.12.x) and later.

Is there a version for the Linux distribution I currently use?

All users of 64-bit Linux distributions can use the AppImage package which does not require installation permissions. Who uses the Ubuntu distribution and has administrator rights can install the deb package. Other packages for special needs can be found in our repository.



Why does the application ask me for a UserID and Password?

Valid Desk works with the Cloud Signature .To use your signature, you need to authenticate with the credentials set when the certificate was purchased.

How do I get a signature certificate?

The digital signature certificates can be purchased on the Intesi Group Store.

Why does the signed file have extension p7m?

When the file you need to sign is not a pdf, you must use the standard p7m format which contains both the original file and the signature. If the file is a pdf, the signature can be affixed into it (unless it is protected by a password that makes it unmodifiable, in which case a p7m file is generated as for non-pdf files).

Why when I try to sign the pdf file the application tells me that “it is not valid”?

It may happen that some pdf files have been generated with applications that do not strictly comply with the format. In this case, Valid Desk reports the invalid format. Before signing, simply open the file with Adobe Acrobat and save a copy: the Adobe software strictly complies with the format and the saved copy will be valid.

I don’t get the push notification

If your smartphone does not receive a push notification due to internet connection problems, you can manually enter PIN and OTP.

If I open the pdf I signed why don’t I see the signature?

The digital signature is a cryptographic calculation not visible graphically within the document. However, it is possible to add a graphic signature which visibly declares that the document is signed. To do this, when Valid Desk displays the document, you must press the [ctrl] key and select with the mouse the area in which you want to place the visible signature.

I have to sign a pdf file and get a p7m file, how can I do it?

Sometimes for business reasons is required to sign in p7m format. If the original file to be signed is in pdf format and you want to get the signature in p7m format, keep the [ctrl] key pressed while dragging the file in the dotted area or while pressing the [+] button to select the file.

For nerds only

How can I check the integrity and authenticity of the software downloaded?

By verifying the signatures of Valid Desk releases, you can prove the authenticity and integrity of the downloaded file. This guarantees that the file you just downloaded was originally created by Intesi Group and that its contents haven’t been tampered with on the way.


Every Valid Desk release is published in a variety of package formats:


  • *.pkg installer for macOS
  • *.exe installer with binaries for Windows
  • *.AppImage self-contained executable for any GNU/Linux.
  • *.deb installer for Ubuntu
  • *.rpm installer for RedHat/CentOS/Fedora


Each of these package files has two related sidecar files, a *.sha256sum and a *.asc that can be downloaded from the repository.


Before you can check the gpg signature you need to import the public key identified by the fingerprint: D1CB 5A13 28C6 0FEE 8D2A  778C 8307 8C70 F6D9 FB91 also published here, here and here.

Didn’t find what you were looking for? Let us know.

Contact us