File Extension Library


.SIGN File Extension

  • Developer by: Free Software Foundation, Inc.
  • Category: Encoded and encrypted Files

What is an .SIGN file?

.SIGN file extension is created by Free Software Foundation, Inc.. .SIGN has been classified as Encoded and encrypted Files.

.SIGN is GNU Privacy Guard data

The sign file extension is related to GNU Privacy Guard (GNUPG), a program with which users can encrypt and sign data and communication for Unix-like systems and Microsoft Windows.

The sign file contains encryption key.


How to open:

Use GNU Privacy Guard to work with *.sign files.

How to convert:

As far as we know, this .sign file type can't be converted to any other file format. This is usually the case of system, configuration, temporary, or data files containing data exclusive to only one software and used for its own purposes. Also some proprietary or closed file formats cannot be converted to more common file types in order to protect the intellectual property of the developer, which is for example the case of some DRM-protected multimedia files.

How to Open .SIGN file on different platforms

Open .SIGN File on Windows

  • Right-click a .SIGN
  • Left-click "Open With" > "Choose another app"
  • Select the program that opens .SIGN file and Select check box "Always use this app to open .SIGN files" Press "Ok"

Open .SIGN File on Mac

  • Right-click (or Ctrl + Left-click) the .SIGN file
  • Click "Open With" > "Other.."
  • Then choose another program from the app list and press "Open"
  • Select check box "Turn on" for "Always open in app"

Open .SIGN File on Linux

Right click on the .SIGN file, choose "Open with" and select a program from the list above

Open .SIGN File on iPhone

Select a file. If you don't see an application to open the .SIGN file, tap "Share" and choose the right app.
Method 2
Save the file. Then open the app «Files». Touch and hold the file, then release your finger. You will see a black menu bar. After that tap "Share" and select an application.

Open .SIGN File on Android

Tap the Settings icon on an Android smartphone, then select «Applications». Click the Settings icon in the upper right corner of the screen, to change the default apps.
If you want to open, edit, save or even convert .SIGN files on Android, then your best bet is to download one of the dedicated apps available on Google Play.

How to fix problems with .SIGN files

  1. You need to update the application that you normally use to open .SIGN files. Only the latest version of the software supports the current .SIGN file format
  2. You need to check the .SIGN file for viruses. To do this, you need to scan it with a popular antivirus (Norton, Nod32, Kaspersky, Dr.Web, etc.)