fillable form fields

SOFTWARE: acrobat professional

tools > advanced editing > show forms toolbar

REQUIRES: Acrobat Professional.

Just do:

tools > advanced editing > show forms toolbar

And then select a tool (checkbox, text field, whatever) and drag a box around the area on the pdf that you want to apply the field, checkbox etc.

Make sure to Save As instead of just saving to ensure that you get the form fields included in your final pdf.

Nice trick is to make the background and stroke clear, so that the artwork below shows up as normal, but the user can still interact with the form.

When creating a large text field, set your font size manually, and check "multiline". Else you'll end up with one huge line of text instead of multiple lines of normal sized text.