The Omni Group has released OmniOutliner 4.0.4, with a fix for printing with manual page breaks, a solution for crashes when zooming, corrections to a number of documentation typos, and correct menu options when not running the Pro version. ($49.99 new, free update, 45 MB, release notes)
Fixing Save as Adobe PDF Crashes
There have been many reported instances of the "Save as Adobe PDF" workflow crashing regardless of application, but precious few workarounds or resolutions. In troubleshooting, I discovered that there were three instances of the "Save as Adobe PDF.action" in three different locations: /Library/Automator; ~/Library/Automator; and /System/Library/Automator. By eliminating all except the version in /System/Library/Automator, the workflow started behaving, and I was able to cut PDFs directly from the Print dialog.