How to save a PDF document by replacing the original PDF document in the server side of the PDF viewer control?
You can save the copy of the PDF document to the location in the local disk (where the original document is presented) by modifying the Download () action method in the server-side (web API controller) as a workaround. Refer to the following code snippet to save the PDF document in the server-side.
Code snippet
PdfViewerHelper helper = new PdfViewerHelper();
//Get the base64 string of the PDF document
object json = helper.GetDocumentData(jsonResult);
string base64String = json.GetType().GetProperty("documentStream").GetValue(json,null).ToString();
if (base64String != null || base64String != string.Empty)
{
//Get the byte array from the base64 string of the PDF document
byte [] byteArray = Convert.FromBase64String(base64String);
//Save the PDF document in the desired location in the disk
System.IO.File.WriteAllBytes(HttpContext.Current.Server.MapPath("~/Data/F# Succinctly.pdf"), byteArray);
}
return null;
Sample: https://www.syncfusion.com/downloads/support/directtrac/general/ze/PdfViewerWeb344122673
