Compatibility (Form Properties dialog box)

Use this dialog box to update forms that were created in Designer version 6 to version 7. Updating older forms will result in the shifting of some text, which may require manual adjustment. In addition, script handling of enter and exit events on drop-down list boxes is affected. If the older form will be viewed primarily with Acrobat 7.0.5 or Adobe Reader 7.0.5 or later, use this Compatibility dialog box to update the form to version 7.

To display this dialog box, select File > Form Properties and click Compatibility.

If your form was created in version 6, you will see buttons you can use to update to version 7.

Revert Rendering Model
Forces all versions of Acrobat to use the previous form rendering model that was available in earlier versions of Designer.

By default, Acrobat now uses a new form rendering model (Direct Rendering) for rendering PDF forms. The new form rendering model provides better performance than the previous form rendering model. However, the new form rendering model can cause differences in the appearance and performance of legacy forms that use the previous rendering model.

Revert Text Formatting or Update Text Formatting
If you open a form from an earlier version of Designer, the text formatting rules are different.

To use the current text formatting rules, click Update Text Formatting. Updating older forms will result in the shifting of some text, which may require manual adjustment.

To use the version 6 text formatting rules, click Revert Text Formatting.

Revert Event Model or Update Event Model
If you open a form from an earlier version of Designer, the behavior of the enter events on the form is different. In version 7, the first time a user clicks in a drop-down list, an enter event is sent with the reenter property set to false. If the user clicks in the field again or presses the Enter key, another enter event is sent with the reenter property set to true.

To use the current event handling rules, click Update Event Model. If you want the enter event to occur each time a user clicks a drop-down list, update the event model.

To use the version 6 event handling rules, click Revert Event Model. For example, if you have a form that was created in Designer version 6, and you want to download data from the server only once on the first enter, you may want to keep the old event model or revert to the old event model.

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