I currently need to open certain PDF files generated from Altium Designer (printed circuit board design). Certain featues that show correctly in the PDF are present in the DES file, but are zero size, zero length and no line width (essentially invisible). Is there a technical contact at Corel that I can show example files to?
I have no experience with Altium Designer, but if you could upload some sample pdf file then I would try to look at it.
Mek