Camscanner app adds trojan and malware (arstechnica.com)

I was using this app almost on a daily basis. It was really good at 1. Automatic border detection and would also "snap" to the border if you were adjusting it manually 2. Really good color filters for black and white. It would take a wrinkled document straighten / fix any noise in the image really well

What alternatives are people using ?

PlayProtect is not detecting and warning users about CamScanner even when it has been removed from the Playstore.

I've tested it via manual scan on PlayProtect as well, no dice. Isn't that what it is supposed to do.