Diarium version: 3.0.22.0
OS + version: Windows 10 22H2
Device model: Desktop PC
I was reading an old entry (three years old) in my journal and part of that entry I had a .pdf attached. Diarium would not open the pdf, however, it allowed me to download to my device which I did. I then attached the downloaded version as a new file and it opened! but the original still didn't.