Use Adobe Acrobat or other PDF editing software to create a fillable PDF. Create a Word document and save it in Word, then open Acrobat. Click the "Tools" menu and click "Prepare Form." ...

Mozilla Firefox now also the ability to disable JavaScript in PDF documents should you wish to do so. This feature is merely a way for Mozilla to improve security in its web browser, and we like it.

As it turns out, the fix is simple, but a little silly: After you’ve filled out a PDF form in Preview, choose Print from the File menu and then use the dialog box’s PDF option to save it to a PDF.