I'm also getting this error. We have a larger PDF document (150+ pages) that we're trying to add 4 pages to from another document, and this error is generated. Also, when I try to do a save-as with the larger doc, I get the error. So there's something wrong with the larger doc I assume which is causing this (corrupt somehow?)... Anty help would be appreciated!
Did you ever find the answer to this problem?? I am having the same problem with
my Acrobat 9 Pro document. When trying to insert a page to the document (300 pages long) I get the error message "expected a dict object
Would appreciate any tips you can give me.