I found that while viewing a PDF file in the example application, after a while the bookmarks stopped working. This is a way to reproduce the problem:
Open the PDF Creator Developer Manual PDF file in the example application (PDFCreactiveDoc.exe)
Expand all the bookmark folders in the bookmark view (so all bookmarks are visible)
Click on the first bookmark
Hold the down-arrow key on the keyboard until you've reached the bottom of the bookmarks.
Hold the up-arrow key on the keyboard until you've reached the top of the bookmarks.
Partway back up, the PDF viewer will stop updating with the new bookmark positions. From then on, the upper half of the bookmarks are completely broken.
Another way to get this problem:
Open the PDF Creator Developer Manual PDF file in the example application (PDFCreactiveDoc.exe)
Starting at the bottom of the bookmarks view and working upward, expand all the folder bookmarks by double-clicking them.
This breaks the first two bookmarks in the document.
I wrote my own bookmark browser in MFC to try to circumvent the problem, but it had the identical bug.
Ben Dilts