I need to be able to open up an existing PDF form and retrieve all of the information about every field on the form. Can I do this with Aspose.Pdf.Kit (which we have)? I've found the FieldsNames method, but that only returns the names of all the fields. I need to be able to get information like the height, width, location, etc. Also, I need to be able to retrieve a list of all the options (item and export value) associated with combo boxes, check boxes, etc. I've seen where I can set this information when adding a new field, or change it on an existing field, but how can I retrieve it from an existing field?