-dPDFSETTINGS=/default
-dPDFA=1
-dCompatibilityLevel=1.4
- -dPDFACompatibilityPolicy=3 # that will skip some errors about XMP
+ -sPDFACompatibilityPolicy=3 # that will skip some errors about XMP
-dAutoRotatePages=/None
-dOptimize=true
-sColorConversionStrategy=RGB # advised for PDF/A