We know the conversion at least require two condition, one is the conversion software, the other is the converted file. In operation when you have downloaded the DOC to any converter in the site of https://www.verydoc.com/doc-to-any.html or https://www.verydoc.com/doc2any_cmd.zip it contains the converted file.
there are six format files marked by the red circle in advance, so if we want to convert rtf to pdf, it becomes very handy, the detail as follows
step1: go to DOS
step2: drag the icon of doc2any.exe into DOS window
step3: drag the icon of example.rtf into DOS window
step4: repeat step3, and correct a little, that substitute pdf for rtf
then press the “Enter”