Illustrator to PDF conversion problems
I updated from Illustartor 2018 to Illustrator 2022. When I open the old 2018 Illustrator file in 2022 ans safe it there, then safe it as PDF some pictures in the PDF are missing or displayed as 'negatives' (I did not have any problems when I did use the 2018 file and safed it as PDF. I now tried to safe the 2022 ai file as PDF by selecting Acrobat 4 (PDF1.3) standard and that works again. I wonder what is different between Acrobat 4 and Acrobat 7 standard? Why would some images just disappear from the picture? I did not change anything else in the setting when safing as PDF except the button in the upper right corner (Acrobat 4 vs. 7). Any Idea? I'd rather safe the files in a new format, but not sure what exactly I need to change in the setting, what is different between Acrobat 4 and 5-7 version? Thanks.
