Docx File corruption due to the image wrapping

[stevenxi]

When there's image in the .docx file (with text wrapping), open and save by NPOI. The file can no longer by open by Word there after.

version 2.5.2

            using (var fs = new FileStream(@"Template.docx", FileMode.Open, FileAccess.Read))
            using (var outputFile = new FileStream(@"out.docx", FileMode.Create, FileAccess.Write))
            {
                var doc = new XWPFDocument(fs);
                doc.Write(outputFile);
            }

Template.docx

[stevenxi]

It's related to this Stackoverflow issue: https://stackoverflow.com/questions/52169811/why-docx-file-is-corrupted-after-editing-with-npoi

The problem occurs when the image property "Wrap Text" has a value other than "In Line With Text". In my case when the image is background of the text. ('behind text' value).

[stevenxi]

Fixed few of them as PR #510

[tohoaibao]

I still get error when Image wraping in header. I use version NPOI 2.5.4
Template.docx

[tonyqus]

@tohoaibao Your file has some special w14 attributes. I've figure out some issues from our word templates.