Pdf convert to image but texts are missing

I try to convert this pdf pages to png, but it turns out the png files are weird: most texts on every page are missing!

Aspose.pdf version is 22.7. Also tried jpg format, same thing happens. Using Acrobat to do the conversion is normal.

I guess it is a minor bug, hope you guys can fix it soon.

PDF file as below:
example.pdf (544.6 KB)

Code sample as below:
AsposeExample.zip (173.3 KB)


We have logged this problem in our issue tracking system as PDFNET-52141. You will be notified via this forum thread once this issue is resolved.

We apologize for your inconvenience.