I found a BUG in Acrobat XI Professional (the full product, not Reader).
After deleting or inserting PDF pages Acrobat throws error 'There was a problem reading this document (14).'
I often need to insert or delete pages in a PDF file because the authors did not format the document properly so that the first page of every section prints on the odd pages, so that double-sided document print correctly with chapter or section title pages on the front side of two-sided pages.
I first extract a blank page from the document, so that I have a template blank page that is physically the SAME SIZE as the book i need to fix.
After deleting or inserting the same blank page extracted, I then page through the document. When I get to the pages after the inserted page, I get the document error 14 after the inserted page. Error 'There was a problem reading this document (14).'
Looking on the internet in Adobe Technical Support Forums, I saw that this indicates the document got corrupted from the deletion or insertion operation.
When I hold down the Control key and click the OK button, I get the message 'Expected a dict object' which means the document structure is broken. (An internal PDF dictionary data structure is receiving the wrong data type, hence the document is corrupted. )
Even if I use the native Acrobat XI Tools menu... 'Insert Pages... More Insert Options, Insert Blank Page', I get the same result.
This is a native PDF document. This should not happen. I am using Acrobat built-in functionality, and this breaks the index, breaks the page display.
This bug occurs with many documents that I try to insert blank pages.