AutoCAD Inventor :: Print / Save DWG To PDF

I am simply trying to print or save an Inventor .DWG file to a .PDF file via C# - the issue being that the .PDF page size must correspond to the active sheet size in Inventor.

When I try printing to a PDF using:

oPrint.Printer = "Adobe PDF";
oPrint.ScaleMode = PrintScaleModeEnum.kPrintBestFitScale;
oPrint.PaperSize = PaperSizeEnum.kPaperSize11x17;
oPrint.Orientation = PrintOrientationEnum.kLandscapeOrientation;
oPrint.SetSheetRange(1, 1);
oPrint.PrintRange = PrintRangeEnum.kPrintSheetRange;
oPrint.SubmitPrint();

I get a message saying I have to uncheck "Rely on system fonts only; do not use document fonts." in the Adobe PDF settings. Is there a way to do this programmatically?

When I export to PDF using:

TranslatorAddIn PDFAddin = (TranslatorAddIn)instance.ApplicationAddIns.get_ItemById("{0AC6FD96-2F4D-42CE-8BE0-8AEA580399E4}");
TranslationContext oContext = instance.TransientObjects.CreateTranslationContext();
oContext.Type = IOMechanismEnum.kFileBrowseIOMechanism;
[Code] .....

This works but I cannot set the PDF page size. Again, is there a way to do this programmatically?

I am using Inventor 2010, Adobe Acrobat 9 Pro, Windows 7, 64 bit.