I've had this problem for a little while and just worked around it, but I'm wondering if it is something I am doing that is causing it. In design mode, I line up a fill-able text field over a static text field. When previewing the PDF, the fill-able text fields are lower in the static text area than what is reflected in the design mode. Any assistance would be appreciated. I've noticed, if the line spacing is set to Exactly at 15pt, then the fields display the same in both modes. While this is not a huge problem, I have some forms that need to stay single spaced (or as close to it as possible).