words source code：
src.zip (4.8 KB)
origin doc:
doc and font.zip (1.8 MB)
converted info:
before converted.jpg (103.3 KB)
after converted.png (96.4 KB)
There are some differences after conveted,please have a check.
We have logged this problem in our issue tracking system with ID WORDSNET-22637. We will further look into the details of this problem and will keep you updated here on the status of correction. We apologize for your inconvenience.
The issues you have found earlier (filed as WORDSNET-22637) have been fixed in this Aspose.Words for Java 21.10 update.