To make some radio buttons in the same status(checked or unchecked),you have to make all of them have the same radio button name and export value and check options Radio buttons with the same name and value are selected in unison under Options tab in Radio button Properties dialog boxes for all of those radio buttons. To open Radio button Properties window, please click on Form tab in Foxit PDF Editor,choose Radio button, double click on a radio button in PDF file to bring up Radio Button Properties window that belongs to the button you have clicked.
