Converting from .mht / .doc file to .docx file background images are missing

Hi, I tried converting .doc / .mht file to .docx file format using Aspose library in java. While converting it removes header & footer along with other background image.
Attached the sample .doc and .mht file for your reference.

Java Version :8 (JDK : 1.8.0_351)
Aspose jar version: aspose-words-23.1.jar

Code (2.5 MB)

com.aspose.words.Document doc = new com.aspose.words.Document("docsample.doc");"outpu.docx", SaveFormat.DOCX);

Sample file attached (2.5 MB)

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-25507

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.

Is this option available in paid product of aspose-words.jar? or this is a know issue?

@jaibabu We have logged the reported problem as WORDSNET-25507 defect. Currently it is in the queue for analysis. Once analysis is doe we will be able to provide you more information.