Read pdf text and read pdf with ocr returns text about getting adobe reader?

The text that returns is:
@"Please wait…

If this message is not eventually replaced by the proper contents of the document, your PDF
viewer may not be able to display this type of document.

You can upgrade to the latest version of Adobe Reader for Windows®, Mac, or Linux® by
visiting http://www.adobe.com/go/reader_download.

For more assistance with Adobe Reader visit http://www.adobe.com/go/acrreader.

Windows is either a registered trademark or a trademark of Microsoft Corporation in the United States and/or other countries. Mac is a trademark
of Apple Inc., registered in the United States and other countries. Linux is the registered trademark of Linus Torvalds in the U.S. and other
countries."

How do i avoid this message and get the actual text of the pdf i am trying to read?

@david.rya.goderre1

Can you share the pdf you are trying to read here

Cheers

DHR34.pdf (1.4 MB)

This is one of them.