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How to export the PDF pages to images in ASP.NET(classic)?
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How to export the PDF pages to images in ASP.NET (classic)?
At present, there is no support to export PDF pages as images in ASP.NET (Classic). However, you can export the PDF Document pages as images by using ExportAsImage functionality available with PdfViewer.Windows as in the below code snippets.
ASPX
<asp:Content ID="BodyContent" runat="server" ContentPlaceHolderID="MainContent"> <table width="100%" style="color: #5D6B03" border="1px"> <tr style="width: 100%; background-color: #8EA718; text-align:center"> <td > <asp:FileUpload ID="FileUpload1" runat="server" /> <asp:Button ID="Button1" runat="server" onclick="Button1_Click" Text="ExportAsImage" /> </td> </tr> </table> </asp:Content>
Default.aspx.cs
C#
protected void Button1_Click(object sender, EventArgs e) { if (System.IO.Path.GetExtension(FileUpload1.PostedFile.FileName).Equals(".pdf")) { //locate the file path and the path the images to be saved string imagePath = Server.MapPath("~/Images/"); //Clear the previous pdf file images from the Images folder CleareFolder(imagePath); //Get the pdf file stream Stream pdfStream = FileUpload1.PostedFile.InputStream; //Create an instance of PdfViewerControl PdfViewerControl pdfViewercontrol = new PdfViewerControl(); //Load the document in the viewer pdfViewercontrol.Load(pdfStream); //Export the pages of the loaded document as bitmap images System.Drawing.Bitmap[] images = pdfViewercontrol.ExportAsImage(0, pdfViewercontrol.PageCount - 1); int page = 0; //Save the images in the imagepath defined earlier foreach (System.Drawing.Bitmap bmp in images) { images[page].Save(imagePath + "exportedPage_" + page.ToString() + ".png", System.Drawing.Imaging.ImageFormat.Png); page++; } } } /// <summary> ///Clear the Folder. /// </summary> /// <param name="folderName"></param> ///<return></return> private void ClearFolder(string folderName) { DirectoryInfo directoryInfo = new DirectoryInfo(folderName); foreach (FileInfo fileInfo in directoryInfo.GetFiles()) { fileInfo.IsReadOnly = false; fileInfo.Delete(); } }
Sample:
https://www.syncfusion.com/downloads/support/directtrac/general/ze/PdfViewerWeb1755372995