Export to Powerpoint produces garbage

Thanks for replying Meenakshi,

I spoke to the Adobe support people on the phone and, after escalating it to a supervisor, a solution was found: You must print from the original application to a .pdf file using the Adobe print driver and then open the .pdf and print it to another .pdf using the Microsoft print driver.  Then open that second .pdf and export it to Powerpoint.  That seems to work.  You must create both .pdf's, it is not sufficient to just print using the Microsoft print driver alone.  I have not tried printing from the Microsoft driver first and then the Adobe driver but I suspect that will not work.  I think the underlying principle is that the Adobe driver creates a very minimal file and then the Microsoft driver knows how to create a file compatible with Microsoft Powerpoint ... but that is just a guess.

In answer to your question, as I said in my OP, a file with nothing but plain text does not have a problem.  But pertty much any file that has text and graphics mixed closely together will have a problem.  Try printing (to pdf) a screenshot of an email in your email program with the email program menus and graphics and then exporting it to Powerpoint.