Can you please share the details of the issue in the form of source file and also Operating System and Machine specifications. Which API version you are actually using on your end. The PDF that you are referring is considered as huge.
@kngstr,
I have been able to reproduce the issue on our end. A ticket with ID PDFCPP-1579 has been created in our issue tracking system to further investigate the issue on our end. This thread has been linked with the issue so that you may be notified once the issue will be fixed.