bug/partition_pdf() with stategy = "fast" is not extracting any elements

[Remya-Ramachandran]

/partition_pdf() with stategy = "fast" is not extracting any elements

To Reproduce
We are trying to use partition_pdf with strategy = "fast" using below code.
elements = partition_pdf(
filename=temp_file_path,
strategy="fast"

elements are always empty list.

Any help would be appreciated as its a priority for us.
PDF text is extractable. Is there any scenarios where strategy = 'fast' will fail. We have tried with PDF which does not have any images and also with PDF that contains contains text and images(almost 90% and images 10% ).
In both the cases its returning an empty list

Regards
Remya.