This morning I had to combine 35 PDF files into a single PDF, and wanted to take advantage of the "Always add bookmarks to Adobe PDF" option.
When combining documents, the Zoom level of the document is not respected and defaults to "Page Width" in the bookmark's Actions property. Editing each bookmark individually—nine (9) mouse clicks per bookmark—is very tedious.
Unbelievably, there's a very simple solution…AppleScript. Type the following into the AppleScript Editor (called Script Editor in versions of Mac OS X prior to 10.6 Snow Leopard), compile and run, and—presto—job done.