What kind of files can be opened in the Drafts folder

Is it possible to open a pdf file in the drafts folder, assuming I manage to convert it to a RTF or a TXT format? What kind of file type can I import INTO the drafts folder?

It is only possible to import text files (RTF, TXT, DOC) into the Draft folder.

If you convert a PDF to RTF, then you can handle it just as you would any other RTF file.