1. Display the "Forms" toolbar in Acrobat Professional by going to the "Advanced" menu, and selecting "Forms" from the dropdown menu that results. This will display the "Forms" menu.
2. Select "Text Box" from the "Forms" toolbar. The cursor will change shape and you can select an area with it, creating a text box. By default, the text box will have a yellow background.
3. Double-click the text box you just made and a pop-up menu will appear. On the "General" tab, you can enter the ToolTip text that will appear when a mouse goes over this text box. On the "Appearance" tab, you can change the stroke (border) and fill (background color) of the text box. Setting these both to "None" and leaving the text field empty means the form will not display anything until a user has their mouse cursor go over it in Acrobat Reader.
Tips & Warnings
- Not all PDF readers support Javascript forms and this functionality can be disabled in Acrobat Reader. In particular, the native PDF reader on the Macintosh platform does not support Javascript forms.
- Saving the file as an older version of PDF may cause the Javascript mouseover text to be lost.
