“pdftopdf.filter” will damage your computer.

Edjbeck wrote:

“pdftopdf.filter” will damage your computer.

Can't print to my hp pro 8260. Reloaded the os and still can't print getting the above error message

HP's security certificate has expired.

* If your HP printer doesn't work and you see a warning that HP software '...will damage your computer'

Apple Support: https://support.apple.com/en-us/HT211921

if you do not see Open >System Preferences>Software Update

Update: HP Printer Software 5.1 should now be becoming available through Software Update to fix this issue.

(2220 UTC 23 October 2020)

you can Apple direct download:

https://support.apple.com/kb/dl1888?locale=en_US

Edjbeck wrote:

I downloaded the new software from HP and still have the issue. I did something to cause this but for the life of

me can't remember what.

Reboot?

If you still have an issue, delete the existing printer in

> System Preferences> Printers & Scanners, and add it again.

Connect an AirPrint printer to a Wi-Fi network - Apple Support.

https://support.apple.com/en-us/HT201900

you can also try reset print system if necessary:

If you can't print from your Mac or iOS device - Apple Support

https://support.apple.com/en-us/HT203343