When the attached LogoTest2.docx file is converted to ODT, the logo image is collapsed to 1% of its original height, as shown in the OpenOffice Writer Picture tool:
Original document: LogoTest2.docx (58.3 KB)
Converted document (in zip to get around unauthorised extension issue): LogoTest2.zip (55.4 KB)
The file was converted using:
Document document = new Document("LogoTest2.docx");
document.save("LogoTest2.odt");