Cannot create pdf using custom paper size against the document size
Not sure why you would want that but it could be done via a slug—a 5"x7" page trim could be expanded to 8.5"x11 by adding a 1.75' / 2" slug.
Dov Isaacs wrote:
To expand on Bob and Steve's responses, the fact is that “printing” PostScript from InDesign yields PostScript optimized for printing to a live printer and not for production of PDF! Adobe strongly recommends PDF export as opposed to PDF produced by distillation of PostScript!!!!!
PDF produced by distillation of PostScript loses color management, live transparency, any and all hyperlinks. The resultant PDF may be readily searchable (for text) and may have problems in terms of fonts, especially if you try to subsequently merge such PDF files or perform any Acrobat-based touch up operations.
This is great though - when the list is complete let us know - we'll try get it posted as an FAQ.
I don't know why the quote came out like that - but follow the Print PDF link.