So I have this PSD with several transparent layers. As I need to hand out the file for a professional printing, I export it through Photoshop (CS5) using the usual PDF/X-4:2008 PDF 1.4 profile to retain the transparency.
But the written PDF doesn't have any transparency :
- when I open it under Adobe Reader (with the transparency rendering option set to on), it has a white background
- when I open it under Photoshop, it also has that white background which means the transparency is not kept
So I guess there's something wrong with the layers as the profile used is the correct one, but I don't know what. Any hint ?