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Extract Image and its name from pdf using iTextSharp

I am using iTextSharp c# to extract images and its name from catalog pdf. I Am able to extract images from pdf, but struggling with extracting its corresponding image name as per the attached screenshot and save the file with that name. Please find the code below and let me know your suggestions.
Sample PDF: https://docdro.id/PwBsNR9
Code:
private static List<System.Drawing.Image> ExtractImages(String PDFSourcePath)
{
List<System.Drawing.Image> ImgList = new List<System.Drawing.Image>();
iTextSharp.text.pdf.RandomAccessFileOrArray RAFObj = null;
iTextSharp.text.pdf.PdfReader PDFReaderObj = null;
iTextSharp.text.pdf.PdfObject PDFObj = null;
iTextSharp.text.pdf.PdfStream PDFStremObj = null;
try
{
RAFObj = new iTextSharp.text.pdf.RandomAccessFileOrArray(PDFSourcePath);
PDFReaderObj = new iTextSharp.text.pdf.PdfReader(RAFObj, null);
for (int i = 0; i <= PDFReaderObj.XrefSize - 1; i++)
{
PDFObj = PDFReaderObj.GetPdfObject(i);
if ((PDFObj != null) && PDFObj.IsStream())
{
PDFStremObj = (iTextSharp.text.pdf.PdfStream)PDFObj;
iTextSharp.text.pdf.PdfObject subtype = PDFStremObj.Get(iTextSharp.text.pdf.PdfName.SUBTYPE);
if ((subtype != null) && subtype.ToString() == iTextSharp.text.pdf.PdfName.IMAGE.ToString())
{
}
if ((subtype != null) && subtype.ToString() == iTextSharp.text.pdf.PdfName.IMAGE.ToString())
{
try
{
iTextSharp.text.pdf.parser.PdfImageObject PdfImageObj =
new iTextSharp.text.pdf.parser.PdfImageObject((iTextSharp.text.pdf.PRStream)PDFStremObj);
System.Drawing.Image ImgPDF = PdfImageObj.GetDrawingImage();
ImgList.Add(ImgPDF);
}
catch (Exception)
{
}
}
}
}
PDFReaderObj.Close();
}
catch (Exception ex)
{
throw new Exception(ex.Message);
}
return ImgList;
}

Unfortunately the example PDF is not tagged. Thus, one has to otherwise try and associate title text and image, either by analyzing the location in respect to each other or by exploiting a pattern in the content streams.
In the case at hand analyzing the location in respect to each other is feasible as the title always is (at least partially) drawn on the matching image or is the text right beneath it. Thus, one could in a first pass extract the text with position from a page and in a second one the images, at the same time looking for a title in the previously extracted text in the image area or right beneath. Alternatively one could first extract images with position and size and then extract the text in these areas.
But there also is a certain pattern in the content streams: The titel is always drawn in a single text drawing instruction right after the corresponding image is drawn. Thus, one can also go ahead and in one pass extract images and the next drawn text as associated title.
Either approach can be implemented using the iText parser API. For example in case of the latter approach as follows: first, one implements a render listener that behaves as described, i.e. saves images and the following text:
internal class ImageWithTitleRenderListener : IRenderListener
{
int imageNumber = 0;
String format;
bool expectingTitle = false;
public ImageWithTitleRenderListener(String format)
{
this.format = format;
}
public void BeginTextBlock()
{ }
public void EndTextBlock()
{ }
public void RenderText(TextRenderInfo renderInfo)
{
if (expectingTitle)
{
expectingTitle = false;
File.WriteAllText(string.Format(format, imageNumber, "txt"), renderInfo.GetText());
}
}
public void RenderImage(ImageRenderInfo renderInfo)
{
imageNumber++;
expectingTitle = true;
PdfImageObject imageObject = renderInfo.GetImage();
if (imageObject == null)
{
Console.WriteLine("Image {0} could not be read.", imageNumber);
}
else
{
File.WriteAllBytes(string.Format(format, imageNumber, imageObject.GetFileType()), imageObject.GetImageAsBytes());
}
}
}
Then one parses the document pages using that render listener:
using (PdfReader reader = new PdfReader(#"EVERMOTION ARCHMODELS VOL.78.pdf"))
{
PdfReaderContentParser parser = new PdfReaderContentParser(reader);
ImageWithTitleRenderListener listener = new ImageWithTitleRenderListener(#"EVERMOTION ARCHMODELS VOL.78-{0:D3}.{1}");
for (var i = 1; i <= reader.NumberOfPages; i++)
{
parser.ProcessContent(i, listener);
}
}

I hope this would help.
I am doing this type of thing but if this would help.
// existing pdf path
PdfReader reader = new PdfReader(path);
PRStream pst;
PdfImageObject pio;
PdfObject po;
// number of objects in pdf document
int n = reader.XrefSize;
//FileStream fs = null;
// set image file location
//String path = "E:/";
for (int i = 0; i < n; i++)
{
// get the object at the index i in the objects collection
po = reader.GetPdfObject(i);
// object not found so continue
if (po == null || !po.IsStream())
continue;
//cast object to stream
pst = (PRStream)po;
//get the object type
PdfObject type = pst.Get(PdfName.SUBTYPE);
//check if the object is the image type object
if (type != null && type.ToString().Equals(PdfName.IMAGE.ToString()))
{
//get the image
pio = new PdfImageObject(pst);
// fs = new FileStream(path + "image" + i + ".jpg", FileMode.Create);
//read bytes of image in to an array
byte[] imgdata = pio.GetImageAsBytes();
try
{
Stream stream = new MemoryStream(imgdata);
FileStream fs = stream as FileStream;
if (fs != null) Console.WriteLine(fs.Name);
}
catch
{
}
}
}
Now you can save your stream.
public void SaveStreamToFile(string fileFullPath, Stream stream)
{
if (stream.Length == 0) return;
// Create a FileStream object to write a stream to a file
using (FileStream fileStream = System.IO.File.Create(fileFullPath, (int)stream.Length))
{
// Fill the bytes[] array with the stream data
byte[] bytesInStream = new byte[stream.Length];
stream.Read(bytesInStream, 0, (int)bytesInStream.Length);
// Use FileStream object to write to the specified file
fileStream.Write(bytesInStream, 0, bytesInStream.Length);
}
}

C# Error CS0103 The name 'originalImage' does not exist in the current context

I have problem with my code, I've tryed string originalImage = null;.
But this not really working. Because its not taking original file name somehow..
Code:
private void textBox1_Click(object sender, EventArgs e)
{
FolderBrowserDialog fbd = new FolderBrowserDialog();
fbd.RootFolder = Environment.SpecialFolder.Desktop;
fbd.Description = "+++ Select path +++";
fbd.ShowNewFolderButton = false;
if (fbd.ShowDialog() == DialogResult.OK)
{
textBox1.Text = fbd.SelectedPath;
}
string[] originalImage = Directory.GetFiles(textBox1.Text, "*.JPG");
foreach (var filename in originalImage)
{
Bitmap bitmap = new Bitmap(filename);
//DefaultCompressionJpeg(bitmap);
VariousQuality(bitmap);
}
}
string originalImage = null;
public void VariousQuality(Image original)
{
ImageCodecInfo jpgEncoder = null;
ImageCodecInfo[] codecs = ImageCodecInfo.GetImageEncoders();
foreach (ImageCodecInfo codec in codecs)
{
if (codec.FormatID == ImageFormat.Jpeg.Guid)
{
jpgEncoder = codec;
break;
}
}
if (jpgEncoder != null)
{
Encoder encoder = Encoder.Quality;
EncoderParameters encoderParameters = new EncoderParameters(1);
for (long quality = 90; quality <= 90;)
{
EncoderParameter encoderParameter = new EncoderParameter(encoder, quality);
encoderParameters.Param[0] = encoderParameter;
string fileOut = Path.Combine(#"C:\Users\Kristen\Desktop\pilt2", originalImage + ".jpeg");
Debug.WriteLine(fileOut);
FileStream ms = new FileStream(fileOut, FileMode.Create, FileAccess.Write);
original.Save(ms, jpgEncoder, encoderParameters);
ms.Flush();
ms.Close();
}
}
}
Kind regards,

In you click eventhandler you have a local variable string [] originalImage which you initialize with all the filenames in some directory.
On class level you have a field string originalImage which you initialize with null.
These two elements do have nothing to do with each other, they are completely unrelated.
So in your compression method you use an originalImage to construct a filename. The only entity of this name known in this method is the string field of the class, which has a null value.
You should add a second parameter to your compression method where you pass the current filename to your method and remove the field from the class.
public void VariousQuality (Bitmap original, string filename) {
...
string fileOut = Path.Combine(#"C:\Users\Kristen\Desktop\pilt2", filename + ".jpeg");
}
Call the method as follows
foreach (var filename in originalImage) {
Bitmap bitmap = new Bitmap(filename);
//DefaultCompressionJpeg(bitmap);
string fn = Path.GetFileNameWithoutExtension(filename);
VariousQuality(bitmap, fn);
}

As someone suggested in the comments (which they mysteriously deleted because they were definitely on to something), it seems like you're trying to refer to the original argument:
public void VariousQuality(Image original)
Just rename either that arg to originalImage or rename the other in your code to original.

Release a file being used by another process

I'm implementing "copy map to clip" as an image.
what I do is I create an image an save it to certain directory and copy it to clipboard.
but before I do that I delete every file that exist in the directory, but now I cant since, the image is being used by clipboard.
here's my code.
public override void OnClick()
{
//base.OnClick();
DeleteOldCopiedJPG();
System.Windows.Forms.Clipboard.Clear();
string fileName = System.Windows.Forms.Application.ExecutablePath.Substring(0, System.Windows.Forms.Application.ExecutablePath.LastIndexOf("\\") + 1) + Guid.NewGuid() + ".jpg";
//System.Windows.Forms.Cursor.Current = Cursors.Wait;
//if (System.IO.File.Exists(fileName))
// System.IO.File.Delete(fileName);
IExport objExport = (IExport)new ExportJPEG();
objExport.ExportFileName = fileName;
#if Debug || Release
ESRI.ArcGIS.Display.tagRECT objExportRECT = default( ESRI.ArcGIS.Display.tagRECT);
#else
tagRECT objExportRECT = default(tagRECT);
#endif
var _with1 = objExportRECT;
_with1.left = mapControl.ActiveView.ExportFrame.left;
_with1.top = mapControl.ActiveView.ExportFrame.top;
_with1.right = mapControl.ActiveView.ExportFrame.right;
_with1.bottom = mapControl.ActiveView.ExportFrame.bottom;
IEnvelope envelope = new EnvelopeClass();
envelope.PutCoords(mapControl.ActiveView.ExportFrame.left, mapControl.ActiveView.ExportFrame.top,
mapControl.ActiveView.ExportFrame.right, mapControl.ActiveView.ExportFrame.bottom);
objExport.PixelBounds = envelope;
System.Int32 intHDC = objExport.StartExporting();
mapControl.ActiveView.Output(intHDC, Convert.ToInt16(objExport.Resolution), objExportRECT, null, null);
objExport.FinishExporting();
objExport.Cleanup();
System.Drawing.Image objImage = System.Drawing.Bitmap.FromFile(fileName);
System.Windows.Forms.Clipboard.SetImage(objImage);
//RenderTargetBitmap renderTargetBitmap = new RenderTargetBitmap(200, 200, 96, 96, PixelFormats.Pbgra32);
//renderTargetBitmap.Render((Visual)mapControl.ActiveView.ScreenDisplay);
//Clipboard.SetImage(renderTargetBitmap);
}
private void DeleteOldCopiedJPG(string Path)
{
string[] filePaths = Directory.GetFiles(System.Windows.Forms.Application.ExecutablePath.Substring(0, System.Windows.Forms.Application.ExecutablePath.LastIndexOf("\\") + 1));
foreach (string filepath in filePaths)
if (filepath.Substring(filepath.Length - 4) == ".jpg")
try{ File.Delete(filepath); } catch {}
}

You need to dispose the image after inserting it into the clipboard:
using (System.Drawing.Image objImage = System.Drawing.Bitmap.FromFile(fileName))
{
System.Windows.Forms.Clipboard.SetImage(objImage);
}
Otherwise it will remain open until the garbage collector calls the finalizer for objImage.

Extract image from PDF using itextsharp

I am trying to extract all the images from a pdf using itextsharp but can't seem to overcome this one hurdle.
The error occures on the line System.Drawing.Image ImgPDF = System.Drawing.Image.FromStream(MS); giving an error of "Parameter is not valid".
I think it works when the image is a bitmap but not of any other format.
I have this following code - sorry for the length;
private void Form1_Load(object sender, EventArgs e)
{
FileStream fs = File.OpenRead(#"reader.pdf");
byte[] data = new byte[fs.Length];
fs.Read(data, 0, (int)fs.Length);
List<System.Drawing.Image> ImgList = new List<System.Drawing.Image>();
iTextSharp.text.pdf.RandomAccessFileOrArray RAFObj = null;
iTextSharp.text.pdf.PdfReader PDFReaderObj = null;
iTextSharp.text.pdf.PdfObject PDFObj = null;
iTextSharp.text.pdf.PdfStream PDFStremObj = null;
try
{
RAFObj = new iTextSharp.text.pdf.RandomAccessFileOrArray(data);
PDFReaderObj = new iTextSharp.text.pdf.PdfReader(RAFObj, null);
for (int i = 0; i <= PDFReaderObj.XrefSize - 1; i++)
{
PDFObj = PDFReaderObj.GetPdfObject(i);
if ((PDFObj != null) && PDFObj.IsStream())
{
PDFStremObj = (iTextSharp.text.pdf.PdfStream)PDFObj;
iTextSharp.text.pdf.PdfObject subtype = PDFStremObj.Get(iTextSharp.text.pdf.PdfName.SUBTYPE);
if ((subtype != null) && subtype.ToString() == iTextSharp.text.pdf.PdfName.IMAGE.ToString())
{
byte[] bytes = iTextSharp.text.pdf.PdfReader.GetStreamBytesRaw((iTextSharp.text.pdf.PRStream)PDFStremObj);
if ((bytes != null))
{
try
{
System.IO.MemoryStream MS = new System.IO.MemoryStream(bytes);
MS.Position = 0;
System.Drawing.Image ImgPDF = System.Drawing.Image.FromStream(MS);
ImgList.Add(ImgPDF);
}
catch (Exception)
{
}
}
}
}
}
PDFReaderObj.Close();
}
catch (Exception ex)
{
throw new Exception(ex.Message);
}
} //Form1_Load

Resolved...
Even I got the same exception of "Parameter is not valid" and after so much of
work with the help of the link provided by der_chirurg
(http://kuujinbo.info/iTextSharp/CCITTFaxDecodeExtract.aspx ) I resolved it
and following is the code:
using System.Drawing;
using System.Drawing.Imaging;
using System.IO;
using iTextSharp.text.pdf.parser;
using Dotnet = System.Drawing.Image;
using iTextSharp.text.pdf;
namespace PDF_Parsing
{
partial class PDF_ImgExtraction
{
string imgPath;
private void ExtractImage(string pdfFile)
{
PdfReader pdfReader = new PdfReader(files[fileIndex]);
for (int pageNumber = 1; pageNumber <= pdfReader.NumberOfPages; pageNumber++)
{
PdfReader pdf = new PdfReader(pdfFile);
PdfDictionary pg = pdf.GetPageN(pageNumber);
PdfDictionary res = (PdfDictionary)PdfReader.GetPdfObject(pg.Get(PdfName.RESOURCES));
PdfDictionary xobj = (PdfDictionary)PdfReader.GetPdfObject(res.Get(PdfName.XOBJECT));
foreach (PdfName name in xobj.Keys)
{
PdfObject obj = xobj.Get(name);
if (obj.IsIndirect())
{
PdfDictionary tg = (PdfDictionary)PdfReader.GetPdfObject(obj);
string width = tg.Get(PdfName.WIDTH).ToString();
string height = tg.Get(PdfName.HEIGHT).ToString();
ImageRenderInfo imgRI = ImageRenderInfo.CreateForXObject(new Matrix(float.Parse(width), float.Parse(height)), (PRIndirectReference)obj, tg);
RenderImage(imgRI);
}
}
}
}
private void RenderImage(ImageRenderInfo renderInfo)
{
PdfImageObject image = renderInfo.GetImage();
using (Dotnet dotnetImg = image.GetDrawingImage())
{
if (dotnetImg != null)
{
using (MemoryStream ms = new MemoryStream())
{
dotnetImg.Save(ms, ImageFormat.Tiff);
Bitmap d = new Bitmap(dotnetImg);
d.Save(imgPath);
}
}
}
}
}
}

You need to check the stream's /Filter to see what image format a given image uses. It may be a standard image format:
DCTDecode (jpeg)
JPXDecode (jpeg 2000)
JBIG2Decode (jbig is a B&W only format)
CCITTFaxDecode (fax format, PDF supports group 3 and 4)
Other than that, you'll need to get the raw bytes (as you are), and build an image using the image stream's width, height, bits per component, number of color components (could be CMYK, indexed, RGB, or Something Weird), and a few others, as defined in section 8.9 of the ISO PDF SPECIFICATION (available for free).
So in some cases your code will work, but in others, it'll fail with the exception you mentioned.
PS: When you have an exception, PLEASE include the stack trace every single time. Pretty please with sugar on top?

Works for me like this, using these two methods:
public static List<System.Drawing.Image> ExtractImagesFromPDF(byte[] bytes)
{
var imgs = new List<System.Drawing.Image>();
var pdf = new PdfReader(bytes);
try
{
for (int pageNumber = 1; pageNumber <= pdf.NumberOfPages; pageNumber++)
{
PdfDictionary pg = pdf.GetPageN(pageNumber);
List<PdfObject> objs = FindImageInPDFDictionary(pg);
foreach (var obj in objs)
{
if (obj != null)
{
int XrefIndex = Convert.ToInt32(((PRIndirectReference)obj).Number.ToString(System.Globalization.CultureInfo.InvariantCulture));
PdfObject pdfObj = pdf.GetPdfObject(XrefIndex);
PdfStream pdfStrem = (PdfStream)pdfObj;
var pdfImage = new PdfImageObject((PRStream)pdfStrem);
var img = pdfImage.GetDrawingImage();
imgs.Add(img);
}
}
}
}
finally
{
pdf.Close();
}
return imgs;
}
private static List<PdfObject> FindImageInPDFDictionary(PdfDictionary pg)
{
var res = (PdfDictionary)PdfReader.GetPdfObject(pg.Get(PdfName.RESOURCES));
var xobj = (PdfDictionary)PdfReader.GetPdfObject(res.Get(PdfName.XOBJECT));
var pdfObgs = new List<PdfObject>();
if (xobj != null)
{
foreach (PdfName name in xobj.Keys)
{
PdfObject obj = xobj.Get(name);
if (obj.IsIndirect())
{
var tg = (PdfDictionary)PdfReader.GetPdfObject(obj);
var type = (PdfName)PdfReader.GetPdfObject(tg.Get(PdfName.SUBTYPE));
if (PdfName.IMAGE.Equals(type)) // image at the root of the pdf
{
pdfObgs.Add(obj);
}
else if (PdfName.FORM.Equals(type)) // image inside a form
{
FindImageInPDFDictionary(tg).ForEach(o => pdfObgs.Add(o));
}
else if (PdfName.GROUP.Equals(type)) // image inside a group
{
FindImageInPDFDictionary(tg).ForEach(o => pdfObgs.Add(o));
}
}
}
}
return pdfObgs;
}

In newer version of iTextSharp, the 1st parameter of ImageRenderInfo.CreateForXObject is not Matrix anymore but GraphicsState. #der_chirurg's approach should work. I tested myself with the information from the following link and it worked beautifully:
http://www.thevalvepage.com/swmonkey/2014/11/26/extract-images-from-pdf-files-using-itextsharp/

To extract all Images on all Pages, it is not necessary to implement different filters. iTextSharp has an Image Renderer, which saves all Images in their original image type.
Just do the following found here: http://kuujinbo.info/iTextSharp/CCITTFaxDecodeExtract.aspx You don't need to implement HttpHandler...

I added library on github which, extract images in PDF and compress them.
Could be useful, when you are going to start play with very powerful library ITextSharp.
Here the link: https://github.com/rock-walker/PdfCompression

This works for me and I think it's a simple solution:
Write a custom RenderListener and implement its RenderImage method, something like this
public void RenderImage(ImageRenderInfo info)
{
PdfImageObject image = info.GetImage();
Parser.Matrix matrix = info.GetImageCTM();
var fileType = image.GetFileType();
ImageFormat format;
switch (fileType)
{//you may add more types here
case "jpg":
case "jpeg":
format = ImageFormat.Jpeg;
break;
case "pnt":
format = ImageFormat.Png;
break;
case "bmp":
format = ImageFormat.Bmp;
break;
case "tiff":
format = ImageFormat.Tiff;
break;
case "gif":
format = ImageFormat.Gif;
break;
default:
format = ImageFormat.Jpeg;
break;
}
var pic = image.GetDrawingImage();
var x = matrix[Parser.Matrix.I31];
var y = matrix[Parser.Matrix.I32];
var width = matrix[Parser.Matrix.I11];
var height = matrix[Parser.Matrix.I22];
if (x < <some value> && y < <some value>)
{
return;//ignore these images
}
pic.Save(<path and name>, format);
}

I have used this library in the past without any problems.
http://www.winnovative-software.com/PdfImgExtractor.aspx
private void btnExtractImages_Click(object sender, EventArgs e)
{
if (pdfFileTextBox.Text.Trim().Equals(String.Empty))
{
MessageBox.Show("Please choose a source PDF file", "Choose PDF file", MessageBoxButtons.OK);
return;
}
// the source pdf file
string pdfFileName = pdfFileTextBox.Text.Trim();
// start page number
int startPageNumber = int.Parse(textBoxStartPage.Text.Trim());
// end page number
// when it is 0 the extraction will continue up to the end of document
int endPageNumber = 0;
if (textBoxEndPage.Text.Trim() != String.Empty)
endPageNumber = int.Parse(textBoxEndPage.Text.Trim());
// create the PDF images extractor object
PdfImagesExtractor pdfImagesExtractor = new PdfImagesExtractor();
pdfImagesExtractor.LicenseKey = "31FAUEJHUEBQRl5AUENBXkFCXklJSUlQQA==";
// the demo output directory
string outputDirectory = Path.Combine(Application.StartupPath, #"DemoFiles\Output");
Cursor = Cursors.WaitCursor;
// set the handler to be called when an image was extracted
pdfImagesExtractor.ImageExtractedEvent += pdfImagesExtractor_ImageExtractedEvent;
try
{
// start images counting
imageIndex = 0;
// call the images extractor to raise the ImageExtractedEvent event when an images is extracted from a PDF page
// the pdfImagesExtractor_ImageExtractedEvent handler below will be executed for each extracted image
pdfImagesExtractor.ExtractImagesInEvent(pdfFileName, startPageNumber, endPageNumber);
// Alternatively you can use the ExtractImages() and ExtractImagesToFile() methods
// to extracted the images from a PDF document in memory or to image files in a directory
// uncomment the line below to extract the images to an array of ExtractedImage objects
//ExtractedImage[] pdfPageImages = pdfImagesExtractor.ExtractImages(pdfFileName, startPageNumber, endPageNumber);
// uncomment the lines below to extract the images to image files in a directory
//string outputDirectory = System.IO.Path.Combine(Application.StartupPath, #"DemoFiles\Output");
//pdfImagesExtractor.ExtractImagesToFile(pdfFileName, startPageNumber, endPageNumber, outputDirectory, "pdfimage");
}
catch (Exception ex)
{
// The extraction failed
MessageBox.Show(String.Format("An error occurred. {0}", ex.Message), "Error");
return;
}
finally
{
// uninstall the event handler
pdfImagesExtractor.ImageExtractedEvent -= pdfImagesExtractor_ImageExtractedEvent;
Cursor = Cursors.Arrow;
}
try
{
System.Diagnostics.Process.Start(outputDirectory);
}
catch (Exception ex)
{
MessageBox.Show(string.Format("Cannot open output folder. {0}", ex.Message));
return;
}
}
/// <summary>
/// The ImageExtractedEvent event handler called after an image was extracted from a PDF page.
/// The event is raised when the ExtractImagesInEvent() method is used
/// </summary>
/// <param name="args">The handler argument containing the extracted image and the PDF page number</param>
void pdfImagesExtractor_ImageExtractedEvent(ImageExtractedEventArgs args)
{
// get the image object and page number from even handler argument
Image pdfPageImageObj = args.ExtractedImage.ImageObject;
int pageNumber = args.ExtractedImage.PageNumber;
// save the extracted image to a PNG file
string outputPageImage = Path.Combine(Application.StartupPath, #"DemoFiles\Output",
"pdfimage_" + pageNumber.ToString() + "_" + imageIndex++ + ".png");
pdfPageImageObj.Save(outputPageImage, ImageFormat.Png);
args.ExtractedImage.Dispose();
}

What do i use instead of e.Values.add(... for the ListViewEditEventArgs to upload an Image

i can upload images to the database using linq and the listview control when referancing the e.Values method for the ListViewInsertEventArgs, but there is no such method in the ListViewEditEventArgs, so what can i use to achieve the same results?
here is my inserting code:
protected void ProjectPhotosList_ItemInserting(object sender, ListViewInsertEventArgs e)
{
FileUpload uplImage = (FileUpload)ProjectPhotosList.InsertItem.FindControl("uplImage");
Label fileuploadlbl = (Label)ProjectPhotosList.InsertItem.FindControl("fileuploadlbl");
byte[] img = null;
if (uplImage.HasFile || !uplImage.FileName.ToLower().EndsWith(".jpg"))
{
try
{
img = new byte[uplImage.PostedFile.ContentLength];
uplImage.PostedFile.InputStream.Read(img, 0, img.Length);
}
catch
{
fileuploadlbl.Text = "unable to upload " + uplImage.FileName.ToString();
}
}
if (img == null)
{
e.Cancel = true;
fileuploadlbl.Text = "Please choose a file to upload";
}
try
{
e.Values.Add("ProjectPhoto", new System.Data.Linq.Binary(img));
fileuploadlbl.Text = "File Upload Successful";
}
catch
{
fileuploadlbl.Text = "File Upload Failed, please try again";
}
}

ok so i have solved the issue! I just had to go about it a bit of a different way:
this is the important code:
int mykey = int.Parse(ProjectPhotosList.DataKeys[e.ItemIndex].Value.ToString());
its just a simple way to get the primarykey value of the selected row.
I found a post about uploading pdf's to a database and decided to base the rest of my code on that. So here the full code:
protected void ProjectPhotosList_ItemUpdating(object sender, ListViewUpdateEventArgs e)
{
FileUpload myFile = (FileUpload)ProjectPhotosList.EditItem.FindControl("uploadImage");
TextBox myCaption = (TextBox)ProjectPhotosList.EditItem.FindControl("ProjectPhotoCaptionTextBox");
int mykey = int.Parse(ProjectPhotosList.DataKeys[e.ItemIndex].Value.ToString());
if (myFile.HasFile)
{
//Get the posted file
Stream fileDataStream = myFile.PostedFile.InputStream;
//Get length of file
int fileLength = myFile.PostedFile.ContentLength;
//Create a byte array with file length
byte[] fileData = new byte[fileLength];
//Read the stream into the byte array
fileDataStream.Read(fileData, 0, fileLength);
//get the file type
string fileType = myFile.PostedFile.ContentType;
//Open Connection
PHJamesDataContext db = new PHJamesDataContext();
//Find the Right Row
PHJProjectPhoto Newphoto = (from p in db.PHJProjectPhotos
where p.ProjectPhotoId == mykey
select p).Single<PHJProjectPhoto>();
Newphoto.ProjectPhoto = fileData;
db.SubmitChanges();
}