Saving/Printing PDFs on a Mac

If you are using Preview on a Mac, several people have noted a problem saving or printing the file as it asks for a password.  There is no ‘password’ on the document, but Preview seems to think there is.  The workaround is to use the free download of Adobe Acrobat PDF, or just move the file to your desktop and use Preview to view it.  By downloading the file, you already have it saved, so just move it from your downloads folder to your desktop or other folder.