I’ve been getting this dialog for a couple of days when I try to print an email to PDF so I can store it in Devonthink (something I do on a practically daily basis). A web search indicates that this would seem to be a malware infection, but I have Intego real time detection enabled, and the daily virus search finds nothing. Further web search indicates that this may be due to hp invalidating some driver files, which have since been revalidated.
I suspect that if I delete the plugin my printer will cease to work, or at least I will no longer be able to print to PDF. I have a pretty ancient HP Laserjet 3030, for which hp no longer supplies driver software.
Before I throw my hands up and buy a new printer, anyone have any ideas?