Why are PDF files opening in my web browser?

There is a known issue with Windows and various versions of Adobe Reader DC, which defaults to protected mode and protected view so that PDF documents can’t launch arbitrary executable files, write to system directories, or the Windows Registry.

Because Atakama encrypted files trigger junction point responses, Adobe Reader DC’s protected mode will prevent opening your Atakama encrypted files from your Atakama folder. You can either use a different version of Adobe to open your Atakama encrypted PDF documents, or you can continue to run Adobe Reader DC in protected mode but choose to disable Run in AppContainer, which is enabled by default. 

To change the Adobe Reader DC settings, follow these steps:

  1. Choose Edit > Preferences
  2. In the Categories list on the left, select Security (Enhanced)
  3. In the Sandbox Protections section, deselect Run in AppContainer.

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