hi ftauto,
The "Printer not activated Error code -20" is typically displayed when the PDF Converter encounters an issue with the activation code that is used to enable the printer.
Either an incorrect activation code was used, or the PDF Converter is unable to read the activation code (activation code registry entry was not found).
All users of the PDF Converter must have at least read/write privileges to the "HKEY_CURRENT_CONFIG\Software\ " and "HKEY_CURRENT_CONFIG\Software" keys in the registry.
If the user does not have permissions to access these keys, the conversion process will fail and the "Printer not activated Error code -20? error message will get generated.
To resolve this problem this is the list of steps to follow:
1. open the Windows Start menu
2. type REGEDIT in the command area (the blank space).
3. open the HKEY_CURRENT_CONFIG\Software folder
4. look for the interested printer, right click it and click the Permissions... option
5. set the Permissions variable to Everyone
6. the "Full Control" and "Read" options must be enabled