Guides

Edit Form Fields

You can update the appearance and content of form fields by modifying the properties of form field objects. The following example demonstrates how to modify form field properties such as border color, fill color, text content, etc.:

final page = controller.document.pageAtIndex(pageIndex);
final widgets = await page.getWidgets();
final widget = widgets[0];

widget.title = 'TextFields---ComPDF';
widget.fillColor = Colors.green;
widget.borderColor = Colors.red;
widget.borderWidth = 10;
widget.text = 'Updated Text';
widget.fontColor = Colors.black;
widget.fontSize = 20.0;
widget.alignment = CPDFAlignment.center;
widget.isMultiline = true;
widget.familyName = 'Times';
widget.styleName = 'Bold';

await controller.document.updateWidgets(widget);

For more modifiable properties, please refer to the definition of each form field class, such as CPDFTextWidget, CPDFCheckBoxWidget, etc.