In Mac Mail, when I attach a PDF inline, it gives a preview in the composition window. The problem is when I make changes to the PDF in either Preview or Acrobat and re-attach the file, the inline preview of the attachment will not show. For example, if I add 3 names to the list in my PDF file, save the PDF file and attach it to Mac Mail, none of those names show up in the PDF preview attachment in the composition window even though the changes were made. My friend is running 10.8.5 and the changes show up without issue. 10.9.5 does not for some reason. Any takes?