I've exported an InDesign 6 (on Mac OSX) file to PDF (not for print, but for interactive), the PDF file has embedded several subfonts of Helvetice Neue already used in the InDesign 6 (on Mac OSX) file.
Following this I opened up the PDF file in Adobe Acrobat Pro X (on Windows) - and wanted to add a text form field, but in the tab under appearance there is only "Helvetica Neue" to be found in the dropdown box with the fonts to select from, and not the subfonts ("Light", "Medium", and "Bold"). If I selected the font "Helvetica Neue" - it just pops up a box showing this font can't be embedded due to licensing restrictions (InDesign has already embedded these subfonts properly, without a hitch!).
So my question is does the fonts need to be of a special type perhaps for this to be possible? Need to be embedded in a specific way? Or something entirely different perhaps?