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.
In case you want to go beyond Exchange's abilities to edit PDFs, you
can get a list of plugins that offer various capabilities (including
various types of editing) at the link below. The best way to edit PDFs
is to open them in Illustrator 7 (one page at a time), then, when
you're done, reopen them in Exchange and optimize the files. This last
step can be very important for some kinds of files.