You can export Guitar Projects and music sheets to PDF format, but you probably cannot .gpbank files the same way. It does seem that gpbank to pdf conversion is not possible at all, because GPBANK format is used to store audio data and these cannot be printed as PDF files, perhaps maybe just placed inside as objects, but that would first require export to some common audio format.
This conversion entry was verified by us and conversion was flagged as wrong or not possible.
Usually this happens when the conversion would try to convert different types of data between each other, such as audio to image, or it is not possible because incompatibility between programs, caused by closed file formats, very limited support etc.
If you find entry that you feel is flagged as bad wrongly, please tell us in the discussion below with as much as information as possible so we can fix it.
