Sorry, I can't offer direct change to the source. Instead here is what I found to be wrong:
http://mirror-de.cryptoparty.is/handbook/chapter_01_understanding_email/chapter_01_understanding_email.html#targeted-abuse-harassment-and-spying
Says that """
Linux: Evince, Sumatra PDF
OS X: Preview
Windows: Evince"""
This is wrong. "Sumatra PDF" is designed for Windows only.
I guess it runs with Wine (https://appdb.winehq.org/objectManager.php?sClass=application&iId=5973) but I think this is beside the point.
Sorry, I can't offer direct change to the source. Instead here is what I found to be wrong:
http://mirror-de.cryptoparty.is/handbook/chapter_01_understanding_email/chapter_01_understanding_email.html#targeted-abuse-harassment-and-spying
Says that """
Linux: Evince, Sumatra PDF
OS X: Preview
Windows: Evince"""
This is wrong. "Sumatra PDF" is designed for Windows only.
I guess it runs with Wine (https://appdb.winehq.org/objectManager.php?sClass=application&iId=5973) but I think this is beside the point.