Hi,
I have saved the export method as PDF . Verified the DWO source code and found below. Please confirm if this looks correct.
export.xml(headgroups="1" includewhitespace="0" metadatatype=0 savemetadata=0 )
import.xml()
export.pdf(method=2 distill.custompostscript="0" xslfop.print="0" nativepdf.customsize=0 nativepdf.customorientation=0 )
export.xhtml()