ppt2pdf

Powerpoint to PDF batch conversion for Mac OS and Powerpoint 16

see

• https://apple.stackexchange.com/questions/330047/can-i-handout-versions-of-multiple-powerpoint-decks-converted-to-pdf-files/406988#406988
• https://apple.stackexchange.com/questions/49121/how-do-i-script-powerpoint-to-save-a-directory-of-pptx-files-as-pdfs/407029#407029