Hi Jb,
Thank you for using Syncfusion product .
Currently ,We don’t have support for extracting the meta data and header information from the existing pdf document and also we could not modify radiobuttonfield item’s name when loading the existing pdf document. But we can get the location of the existing fields.
Please refer the below code snippet :
//Get the radiobutton
PdfLoadedRadioButtonListField radiobuttonField = form.Fields[16] as PdfLoadedRadioButtonListField;
//get the items
PdfLoadedRadioButtonItemCollection radioButtonItemCollection = radiobuttonField.Items;
//get one item from itemcollection
PdfLoadedRadioButtonItem radioButtonItem = radioButtonItemCollection[0];
//Get the radiobuttonitem (first item) bounds
RectangleF rect = radioButtonItem.Bounds;
//Get the textboxfield
PdfLoadedTextBoxField textBoxField = form.Fields[1] as PdfLoadedTextBoxField;
//Get the textbox bounds
RectangleF rect1 = textBoxField.Bounds;
Please refer the attached sample in the below link:
http://www.syncfusion.com/downloads/support/directtrac/118312/sample-38743551.zip
Please let us know if you need any further assistance .
Thanks,
Abirami.