Merge pull request #26 from SyncfusionExamples/pdftoimage

PdfToImageConverter

Author: Vikassekar

PDF-to-image/PDF-to-image-in-.NET/PDF_to_Image_Core/Controllers/HomeController.cs

@@ -2,7 +2,6 @@
 using PDF_to_Image_Core.Models;
 using System.Diagnostics;
 using Syncfusion.PdfToImageConverter;
-using Microsoft.AspNetCore.Hosting.Server;
 
 namespace PDF_to_Image_Core.Controllers
 {
@@ -27,11 +26,14 @@ public async Task<IActionResult> ConvertToImage(MyPdfUploadViewModel model)
         {
             if (model.PdfFile != null && model.PdfFile.Length > 0)
             {
-                string filePath = Path.Combine(_webEnvironment.WebRootPath, "Sample.pdf");
-
-                using (var stream = new FileStream(filePath, FileMode.OpenOrCreate))
+                // Create a memory stream to hold the file data
+                using (MemoryStream stream = new MemoryStream())
                 {
-                    await model.PdfFile.CopyToAsync(stream);
+                    // Copy the file data to the memory stream
+                    model.PdfFile.CopyTo(stream);
+
+                    // Reset the position of the memory stream to the beginning
+                    stream.Seek(0, SeekOrigin.Begin);
                     PdfToImageConverter pdfToImageConverter = new PdfToImageConverter();
                     pdfToImageConverter.Load(stream);
                     Stream imageStream = pdfToImageConverter.Convert(0, false, false);

PDF-to-image/PDF_to_Image_MVC/PDF_to_Image_MVC/PDFToImage.aspx.cs

@@ -32,45 +32,46 @@ protected void PDFToImage_Click(object sender, EventArgs e)
                 // Check if it's a PDF file
                 if (Path.GetExtension(uploadedFile.FileName).Equals(".pdf", StringComparison.OrdinalIgnoreCase))
                 {
-                    // Save or process the PDF file
-                    string filePath = Server.MapPath("~/" + "Sample.pdf");
-                    uploadedFile.SaveAs(filePath);
-                    FileStream inputPDFStream = new FileStream(filePath, FileMode.Open, FileAccess.ReadWrite);
-                    PdfToImageConverter imageConverter = new PdfToImageConverter(inputPDFStream);
-                    Stream[] outputStream = new Stream[imageConverter.PageCount];
-                    // Convert all the PDF pages to images
-                    if (imageConverter.PageCount > 1)
+                    // Create a stream to read the file data
+                    using (Stream inputPDFStream = uploadedFile.InputStream)
                     {
-                        outputStream = imageConverter.Convert(0, imageConverter.PageCount - 1, false, false);
-                    }
-                    else if (imageConverter.PageCount == 1)
-                    {
-                        outputStream[0] = imageConverter.Convert(0, false, false);
-                    }
-                    if (outputStream != null)
-                    {
-                        if (!Directory.Exists(Server.MapPath("~/PdfToImage/")))
+                        // Reset the position of the stream to the beginning
+                        inputPDFStream.Seek(0, SeekOrigin.Begin);
+                        PdfToImageConverter imageConverter = new PdfToImageConverter(inputPDFStream);
+                        Stream[] outputStream = new Stream[imageConverter.PageCount];
+                        // Convert all the PDF pages to images
+                        if (imageConverter.PageCount > 1)
                         {
-                            Directory.CreateDirectory(Server.MapPath("~/PdfToImage/"));
+                            outputStream = imageConverter.Convert(0, imageConverter.PageCount - 1, false, false);
                         }
-                        foreach (Stream stream in outputStream)
+                        else if (imageConverter.PageCount == 1)
                         {
-                            if (stream != null)
-                            {
-                                Bitmap bitmap = new Bitmap(stream);
-                                bitmap.Save(Server.MapPath("~/PdfToImage/Image"+ Guid.NewGuid().ToString() + ".png"), ImageFormat.Png);
-                            }
+                            outputStream[0] = imageConverter.Convert(0, false, false);
                         }
-                        imageConverter.Dispose();
-                        if (MessageBox.Show("Do you want to view the converted image?", "Confirmation", MessageBoxButton.YesNo, MessageBoxImage.Information) == MessageBoxResult.Yes)
+                        if (outputStream != null)
                         {
-                            //Launching the PDF file using the default Application.[Acrobat Reader]
-                            System.Diagnostics.Process process = new System.Diagnostics.Process();
-                            process.StartInfo = new System.Diagnostics.ProcessStartInfo(Server.MapPath("~/PdfToImage/"));
-                            process.Start();
+                            if (!Directory.Exists(Server.MapPath("~/PdfToImage/")))
+                            {
+                                Directory.CreateDirectory(Server.MapPath("~/PdfToImage/"));
+                            }
+                            foreach (Stream stream in outputStream)
+                            {
+                                if (stream != null)
+                                {
+                                    Bitmap bitmap = new Bitmap(stream);
+                                    bitmap.Save(Server.MapPath("~/PdfToImage/Image" + Guid.NewGuid().ToString() + ".png"), ImageFormat.Png);
+                                }
+                            }
+                            imageConverter.Dispose();
+                            if (MessageBox.Show("Do you want to view the converted image?", "Confirmation", MessageBoxButton.YesNo, MessageBoxImage.Information) == MessageBoxResult.Yes)
+                            {
+                                //Launching the PDF file using the default Application.[Acrobat Reader]
+                                System.Diagnostics.Process process = new System.Diagnostics.Process();
+                                process.StartInfo = new System.Diagnostics.ProcessStartInfo(Server.MapPath("~/PdfToImage/"));
+                                process.Start();
+                            }
                         }
-                    }
-                    // You can perform further processing with the PDF file here
+                }
                 }
             }
         }