How are you changing the font size of the field? I would recommend setting it through the methods of RadRichTextBox/RadDocumentEditor
, as changing directly the properties in the document model
could be tricky:
Using this code, I was able to change the font size and preserve the formatting through export/import to docx, RTF and XAML. You may have to additionally manipulate the DocumentSelection
to select just the needed part of the document.
In case this doesn't help: please describe how are you applying the formatting (source code), the document you are applying formatting to, and the format you are exporting to.
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