We use Applications 10 and have received logotype picturefiles in the png format. These logotypes are drawings in different colours combined with a text in black. The part of the logotype files that are blank are see-through. When printing the pdf invoice reports the logotype is printed so that the see-through parts are black. This is not wanted of course. 

We have tried several times to find a way to get the see-through parts printed as see-through on the invoices but to no avail. We do get gif files as see through, but the quality of those printouts is abysmal.

Any recommendations?