cannot print fdf
This morning i tried printing an internet coupon which downloads in FDF format. I did the same thing yesterday and it worked perfectly. Today I received an error message saying that the printer in invalid.
I restarted the macbook (MacOS BigSur), reinstalled the printer, deleted and reinstalled adobe acrobat, but nothing has worked. I tried printing a regular pdf i opened in acrobat and it worked, but the fdf will not. How can I solve this problem?

