FM19 Print to PDF Issue

[ecdarringer]

When using the print book feature from FM19 my team is getting inconsistent pdf file sizes.  The smaller pdf size gives grainy graphics while the larger seem fine.  What are the best settings and method to get a print quality pdf? Would a difference in Acrobat versions create a difference? 

[Almtuna]

"Publish Settings, PDF, General" has a few presets: High Quality Print, Press quality, Smallest File Size etc

Perhaps your team members use different presets?