How to Open PDF with “Please wait…” message

When trying to open some PDF files, you may encounter the following error:

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.

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In order to by-pass this error and view the contents of the pdf document, you will need to download this document to your disk and open it with Adobe PDF reader. You may need to “right-click” on the document (or two-finger click on macs) and click “open with Adobe PDF reader”

I have been unable to find ANY software that can open, convert, or otherwise read these types of PDF files other than Acrobat. If you know of any alternative software for these edge-case files, please comment below.