Bitdefender Total Security automatically quarantined k2pdfopt v2.53 and my desktop link to it the first time I ran it from the desktop shorcut link. I had to put it in my exceptions to keep Bitdefender from auto-scanning it. It didn't post a reason for the quarantine. I downloaded it directly from
https://willis.com/k2pdfopt so I know I didn't get a rogue malware copy. What's up with that?