Myujth

When you go to copy a PDF file that has table summaries, the file loses those summaries when you run PDFCopy. The table summaries are not lost if they are set in code manually. I have a PDF document that exists with the following table summary...

After running it through copy, copying the contents of the PDF to a new document the information in the table summary is lost.

Drilling down into the code shows that the loss of information occurs when the following code snippet is executed in PDFCopy.cs under FlushTaggedObject->FixTaggedStructure

 //because of concurrent modification detected by CLR
 foreach (RefKey key in inactiveKeys)
 indirectObjects[key] = null;

The keys for the table summaries never appear to be added to the list of activeKeys, and this is causing the indirect objects containing them to be nulled out on this line. The summaries are preserved if the code snippet is commented out, but I was wondering 1) Why would the table summaries not be marked active keys 2) What other implications would commenting this code out have? 3) Is there a better way to preserve table summaries when copying pdfs without reseting the summaries in code.

To give a little background the process that this issue came up in is one that takes a tagged PDF that exists and adds a table generated in code to the end of it by copying the two to a new PDF document. I don't want to reset the table in the code because the existing PDF is chosen at runtime.