TechWhirl (TECHWR-L) is a resource for technical writing and technical communications professionals of all experience levels and in all industries to share their experiences and acquire information.
For two decades, technical communicators have turned to TechWhirl to ask and answer questions about the always-changing world of technical communications, such as tools, skills, career paths, methodologies, and emerging industries. The TechWhirl Archives and magazine, created for, by and about technical writers, offer a wealth of knowledge to everyone with an interest in any aspect of technical communications.
Geoff's excellent response left out two bits of information which are
seemingly obvious, yet many people miss them:
* Acrobat has an option to compress files. Make sure it's on.
* Acrobat has options to compress the graphics. Use them too. If you're
using screen shots, stick with ZIP or LZW to keep it lossless.