Jim Z: yes, they display correctly in irfanview - just not in Photos app; i was doing a demo/presentation at the time, and didn't have irfanview installed (didn't think i needed it) and assumed ...
OpenOffice is not a file converter, but you can use it to add a JPG to a document and then export that document as a PDF file. Although it can't open PDF files, OpenOffice can save valid PDF files ...
Can’t open JPG in Office Outlook 2003, makes me save it to disk then open from where I saved it. Security box Warning comes up to save to disk or cancel ...