You can move form fields in a PDF file by dragging, using keyboard keys, or with the Cut and Paste commands.
To move a form field, approximately position it by dragging it to the new location. To limit movement to a horizontal or vertical direction, begin dragging and then press Shift as you drag the selection. Position the form field precisely with the arrow keys.
To relocate or copy a form field to the center of any page, select it, choose Edit > Cut, or Edit > Copy, navigate to the desired page, and choose Edit > Paste.
Pasted Fields are placed in the center of the page. If further fields are pasted, they appear with an offset, lower and to the right of the first field.