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I have designed a logo for a client in Photoshop CS6 (I know, Illustrator, Illustrator) and all of the active layers consist either of Photoshop-generated shapes or editable text, aka nothing is a raster. While the .psd file does contain some rasterized layers, the only active ones are not. The company I must submit this logo to for printing only accepts full vector images in the file formats .pdf, .eps, and .ai. How can I save this file in such a way that I know that it maintains its vector qualities? Can I just save it as a PDF file as is?