Doc to pdf, Image conversion error

I use the following command, the doc will be converted to pdf, but I found that the generated PDF inside, the picture is not displayed correctly, please ask what is the reason, thank you!

File docFile = new File("a.doc");
Document doc = new Document(new FileInputStream(docFile));
doc.save("output.pdf");

doc.zip (1019.1 KB)

@yjsdfsdf
We have opened the following new ticket(s) in our internal issue tracking system and will deliver their fixes according to the terms mentioned in Free Support Policies.

Issue ID(s): WORDSNET-26773

You can obtain Paid Support Services if you need support on a priority basis, along with the direct access to our Paid Support management team.