Changing the defaut star in radio buttons in PDF forms

Question

In PDF forms, is there any way to change the default star in radio buttons to a solid circle?

Answer 1

Use the option radiosymbol=<value>, where you can choose from the available pifont elements (or something different):

\documentclass{article}
\usepackage{hyperref}% http://ctan.org/pkg/hyperref
\begin{document}
\begin{Form}
\def\DefaultWidthofChoiceMenu{12pt}%
\ChoiceMenu[name=optionA,radio]{}{Option1,Option2,Option3}

\medskip

\ChoiceMenu[name=optionB,radio,radiosymbol=]{}{Option1,Option2,Option3}

\medskip

\ChoiceMenu[name=optionC,radio,radiosymbol=\ding{108}]{}{Option1,Option2,Option3}

\medskip

\ChoiceMenu[name=optionD,radio,radiosymbol=\ding{109}]{}{Option1,Option2,Option3}

\medskip

\ChoiceMenu[name=optionE,radio,radiosymbol=\ding{96}]{}{Option1,Option2,Option3}
\end{Form}
\end{document}

If you're interested in a reversed selection (placing the check box first, followed by the description), this a way to do it:

\documentclass{article}
\usepackage{hyperref}% http://ctan.org/pkg/hyperref
\begin{document}
\begin{Form}
\def\DefaultWidthofChoiceMenu{12pt}%
\ChoiceMenu[name=optionA,radio]{\mbox{}}\null Option1
\ChoiceMenu[name=optionA,radio]{\mbox{}}\null Option2
\ChoiceMenu[name=optionA,radio]{\mbox{}}\null Option3

\medskip

\ChoiceMenu[name=optionB,radio,radiosymbol=]{\mbox{}}\null Option1
\ChoiceMenu[name=optionB,radio,radiosymbol=]{\mbox{}}\null Option2
\ChoiceMenu[name=optionB,radio,radiosymbol=]{\mbox{}}\null Option3

\medskip

\ChoiceMenu[name=optionC,radio,radiosymbol=\ding{108}]{\mbox{}}\null Option1
\ChoiceMenu[name=optionC,radio,radiosymbol=\ding{108}]{\mbox{}}\null Option2
\ChoiceMenu[name=optionC,radio,radiosymbol=\ding{108}]{\mbox{}}\null Option3

\medskip

\ChoiceMenu[name=optionD,radio,radiosymbol=\ding{109}]{\mbox{}}\null Option1
\ChoiceMenu[name=optionD,radio,radiosymbol=\ding{109}]{\mbox{}}\null Option2
\ChoiceMenu[name=optionD,radio,radiosymbol=\ding{109}]{\mbox{}}\null Option3

\medskip

\ChoiceMenu[name=optionE,radio,radiosymbol=\ding{96}]{\mbox{}}\null Option1
\ChoiceMenu[name=optionE,radio,radiosymbol=\ding{96}]{\mbox{}}\null Option2
\ChoiceMenu[name=optionE,radio,radiosymbol=\ding{96}]{\mbox{}}\null Option3
\end{Form}
\end{document}

For displaying the options on separate lines, just insert a paragraph break \par at the end of each line.

Here is the pifont quick reference guide: