For my work I use a combination of Photoshop, Illustrator, Visio, Excel and other things to make pictures and diagrams. I then want to combine them into one large PDF. Combining multiple files to PDF in Acrobat Pro works for the non-Photoshop/Illustrator filetypes, but for whatever reason doesn't work with AI or PS.
Is there a way to take advantage of this useful tool to work on Adobe's own products (the supported formats does not list .ai or .psd)? Going through and exporting each to PDF can be tedious.