Unable to open PDF report in acrobat reader

Our group at Arizona State University is having the same problem with Microsoft SQL Server Reporting Services (SSRS) 2017 when exporting reports as PDF files.  Adobe Acrobat DC version 2022.001.20085 on Windows 10 is unable to open those files, stating: "There was an error opening this document. The file is damaged and could not be repaired."

Based on @Dov Isaacs comments, I am able to remove the text after %%EOF in the affected files and am then able to open them.  But this is not something we can ask our customers to do.  This was not a problem with SSRS 2012, even though the same text existed after the %%EOF line.

I am attaching three files generated by a third party vendor's application:

1. rptheader2012.pdf: a test PDF file export using SSRS 2012 which opens in Acrobat DC.  The PDF file version looks like it is 1.3.
2. rptheader2017.pdf: a test file created by the same application using SSRS 2017 which will not open in Acrobat DC.  The PDF file version seems to be 1.7.
3. rptheader2017-edited.pdf: a copy of the second file where I removed the text following %%EOF. This file does open in Acrobat DC.

Does Adobe have an expected time when an update will be made available that will fix this problem since Dov mentioned he was able to "successfully open this file on the Adobe Acrobat Mobile Reader for iOS"?  This is affecting our reporting services server upgrade schedule.