Any object that is filled either with a solid colour or a hatch type of solid will have the fill rotated around a horizontal axis in a PDF file created both with PDF export and print to PDF. The colour fill block also shows inverted on print preview. I am using the linux verison of Draftsight on OpenSuSe 12.2. The problem started with ver V1R3.1 and is still the same with V1R3.2.

OBO: DraftSight user