Here is a link to a .pdf file uploaded to Files.

Here is a link to a .pdf file in Attachments.

Converting a PDF to RTF or other formats:

There are programs to do this, free and paid versions of file conversion software or online tools.

Here are two lists:  

https://www.tomsguide.com/best-picks/best-free-pdf-editors  (Retrieved 2020/01/18)

https://tweaklibrary.com/how-to-convert-pdf-to-word/ (Retrieved 2020/01/18)

Recommended by a group member (2020/01)

1.This works on windows computers as a standalone software in the opensource freeware realm.  It works alright on Win8.1. 

https://unipdf.com

 2. Convert your files online via ZAMZAR. Upload and then get the converted file.  

https://www.zamzar.com/convert/pdf-to-rtf/ 

CAUTION.  Anything copyrighted or private should NOT go thru any service like this.  Unknown if online convertors retain those files in a offline storage area for their own use.