FormatError: Page count in top-level pages dictionary is not an integer.

[Will233]

Attach (recommended) or Link to PDF file here:

Configuration:

• Web browser and its version:Chrome
• Operating system and its version:Mac OS
• PDF.js version: 2.4.456
• Is a browser extension:no

Steps to reproduce the problem:

1. open this pdf:
   https://askbob-stg.pingan.com.cn/terms/TA001801.pdf

What is the expected behavior? (add screenshot)

What went wrong? (add screenshot)
Can't open the pdf, FormatError: Page count in top-level pages dictionary is not an integer.

Link to a viewer (if hosted on a site other than mozilla.github.io/pdf.js or as Firefox/Chrome extension):

[Snuffleupagus]

https://askbob-stg.pingan.com.cn/terms/TA001801.pdf

It appears that this PDF document has changed on the server, since the issue was originally opened, and given that the new one is in a sense more broken[1] I'm thus attaching the original one here:

issue12402.pdf

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[1] All of the "new" breakage is however not related to the XRef-issues as such, which is good.