Re: Problem when saving PDF's in Photoshop and not keeping transparent background on file.

Reviving this thread. I work in prepress and have always converted psd files to PDFs with transparent backgrounds to use in InDesign or Acrobat. This has stopped working in the latest versions of Photoshop. The reason I never used native psd files was that, despite retaining transparency, any vector or text layers were flattened. Why doesn't this work anymore,  what anm I missing?