Unknown Object when Printing PDF

[Victor.Tuguinay]

I have an Inventor drawing that when in preview, as shown on screenshot below, looks good. But when printed in pdf, some line and object are created. How can this be fixed?

[Victor.Tuguinay · Accepted solution]

I figured out my own problem..

I’ve been creating PDF’s by going File>Print and using a pdf printer as the printer. This creates those weird objects on the PDF.

But using File>Export>PDF, those objects are not created. 

It seems third party pdf printers has potential for errors.