The Amyuni PDF Converter is our Printer Driver that enables you to convert any documents to PDF format. If you have any questions about installing and using the Amyuni PDF Converter please post them here.
After installation a printer using install.exe and out licence key
We get a
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Print not activated Error code -20
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message each time we print on this printer
Most probably you were evaluating the End User version of the PDF Converter and you licensed the Developer version.
The End User version has a user interface and you can use it to print directly from Windows applications like Word or Excel but the Developer version doesn't have any user interface and printing to it should be done programmatically from inside your application.
If you are printing programmatically you need to call EnablePrinter() right before each printout.