Steps to replicate the issue (include links if applicable):

https://commons.wikimedia.org/wiki/File:%E0%AE%8E%E0%AE%AE%E0%AF%8D._%E0%AE%95%E0%AF%87._%E0%AE%9F%E0%AE%BF._%E0%AE%AA%E0%AE%BE%E0%AE%95%E0%AE%B5%E0%AE%A4%E0%AE%B0%E0%AF%8D_%E0%AE%95%E0%AE%A4%E0%AF%88.pdf

What happens?:

A new file with PDF revision is uploaded in the given link. The newly uploaded file is shown as 0x0 pixel though the resolution of the book is fairly good. When the original file is downloaded the contents are seen properly. But in the uploaded file page preview is not being shown. Also when the PDF while is used in Index in wikisource the pdf page is not visible. Purge was done. But still the problem persists.

What should have happened instead?:
The uploaded page should be visible.