Microsoft Fax and scan

I recently tried to send a fax with microsoft fax and scan, and had trouble sending a fax with an attachment. Then I remembered about an issue in that you can not add an attachment. Is there a way to resolve this ? I am sorry if I have already asked this question ?

Thanks..

very likely Windows 10 changed the default program for PDF files to be Edge browser. I would suggest to change PDF files to use Adobe Reader DC to open. Windows Fax and Scan now should attach PDF files and Fax using Adobe to convert to Fax format.

Maybe
https://www.softwareok.com/?seite=faq-Windows-10&faq=64