Hi Jason,
I am using the docx4j-2-2-2 distribution and I encountered a problem trying to open, manipolate and saving again a docx file.
I have figured out the problem: this word file has an header with an image but somehow is not reconigned as the same image in all the pages. This means that in the docx I have different pointers to apparently different file images but at the end they converge to the same ...

News of docx4j