[Zubersoft]

I've tried this on multiple tablets now with .chopro files and .txt files, and have not encountered this problem. I think it's specific to your tablet I'm afraid. The file is created with a single ".pdf" by my app, so I don't know why the extra .pdf is being added by the print handler on your tablet. I can think about changing the export files option to have a checkbox that forces it to be exported as PDF. Otherwise, there is another trick - if you add an annotation of any kind to the text file and then export it, it will be converted to PDF (as text files can't have annotations). So you can just add an invisible white line or dot, for example.