How to convert your .ps files to .pdf in unix without having any of the images lossily compressed?

distill -encodecolor off -compresstext off -colordownsample off foo.ps

If you have grayscale or black&white images, you might have to use -encodegray and -encodemono. Type "distill -help compression" to see all the details (Chris).

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You might also want to try

-compatlevel 2.1

so that people with older acrobat readers can view the pdf. With this setting, I was able to print to three different printers in this building without trouble (Brian).