some pdf files open just fine, but this particular file (and a few like it) will open the Reader but the reader comes up with an error box that says the file is corrupted or not a compatible file, as shown here:
I get this file from my download folder which gets it from a link in an email (from a trusted site I subscribe to)--been getting this file (a 'zine) for years and never had a problem with it. I think the error coincided with an update/upgrade to the reader a few months ago. Last month's issue didn't work at first, but later when I tried again it opened fine...there are a few other files I get in a similar way which also seem to have a problem. I've tried turning off the Reader security stuff but no joy....