Dear all!! When we are using aspose.pdf.dll 9.1 or later, at the time to assign any value to property "Value" of a control it is taking too long. when we use previous versions (9.0, 8.9 ..) the assign is faster. we did…...Forms.Field[] _formFields = null;..._formFields = doc.Form.Fields; TextBoxField txtName = doc.Form["txtNamePru1"]...