I love filling out forms—they’re like tests where I know all the answers. Starting in Mountain Lion, entering data in PDF forms got even easier; Preview can now automatically detect where form fields are, so blanks automatically become text fields where you can type and checkboxes can simply be clicked.
Great as that is, when I sent those filled-out PDF forms to some of my colleagues, I found they’d often reply that the form I’d sent them was empty. And yet, when I opened the same document on my own computer, the data I entered was still there. What gives?
Well, after a little investigation I determined that the problem seems to be—surprise!—that those folks are Windows users. For some reason, the software they use to
ORIGINAL SOURCE: http://www.macworld.com/article/2027181/solving-the-mystery-of-the-empty-pdf-form.html
