Hot to Get the Image form the PDF file in WINDOWS C#

Hot to Get the Image form the PDF file in WINDOWS C#

Step1:- Add the reference of the DLL

using iTextSharp.text;

using iTextSharp.text.pdf;

Download the iTextSharp DLL from this link

http://itextsharp.soft112.com/

The full name spaces will look like

using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

using iTextSharp.text;

using iTextSharp.text.pdf;

using System.IO;

using System.Drawing.Imaging;

Step2:- Create one public class with the name “ExtractImages”

And write the below code

public class ExtractImages

    {

        #region ExtractImagesFromPDF

        public static void ExtractImagesFromPDF(string sourcePdf, string outputPath)

        {

            // NOTE:  This will only get the first image it finds per page.

            PdfReader pdf = new PdfReader(sourcePdf);

            RandomAccessFileOrArray raf = new iTextSharp.text.pdf.RandomAccessFileOrArray(sourcePdf);

            try

            {

                for (int pageNumber = 1; pageNumber <= pdf.NumberOfPages; pageNumber++)

                {

                    PdfDictionary pg = pdf.GetPageN(pageNumber);

                    PdfDictionary res =

                      (PdfDictionary)PdfReader.GetPdfObject(pg.Get(PdfName.RESOURCES));

                    PdfDictionary xobj =

                      (PdfDictionary)PdfReader.GetPdfObject(res.Get(PdfName.XOBJECT));

                    if (xobj != null)

                    {

                        foreach (PdfName name in xobj.Keys)

                        {

                            PdfObject obj = xobj.Get(name);

                            if (obj.IsIndirect())

                            {

                                PdfDictionary tg = (PdfDictionary)PdfReader.GetPdfObject(obj);

                                PdfName type =

                                  (PdfName)PdfReader.GetPdfObject(tg.Get(PdfName.SUBTYPE));

                                if (PdfName.IMAGE.Equals(type))

                                {

                                    int XrefIndex = Convert.ToInt32(((PRIndirectReference)obj).Number.ToString(System.Globalization.CultureInfo.InvariantCulture));

                                    PdfObject pdfObj = pdf.GetPdfObject(XrefIndex);

                                    PdfStream pdfStrem = (PdfStream)pdfObj;

                                    byte[] bytes = PdfReader.GetStreamBytesRaw((PRStream)pdfStrem);

                                    if ((bytes != null))

                                    {

                                        using (System.IO.MemoryStream memStream = new System.IO.MemoryStream(bytes))

                                        {

                                            memStream.Position = 0;

                                            // ByteArrayToImage(bytes);

                                            System.Drawing.Image img = System.Drawing.Image.FromStream(memStream, true, true);

                                            // must save the file while stream is open.

                                            if (!Directory.Exists(outputPath))

                                                Directory.CreateDirectory(outputPath);

                                            string path = Path.Combine(outputPath, String.Format(@"{0}.jpg", pageNumber));

                                            System.Drawing.Imaging.EncoderParameters parms = new System.Drawing.Imaging.EncoderParameters(1);

                                            parms.Param[0] = new System.Drawing.Imaging.EncoderParameter(System.Drawing.Imaging.Encoder.Compression, 0);

                                            // GetImageEncoder is found below this method

                                            System.Drawing.Imaging.ImageCodecInfo jpegEncoder = GetImageEncoder("JPEG");

                                            img.Save(path, jpegEncoder, parms);

                                            break;

                                        }

                                    }

                                }

                            }

                        }

                    }

                }

            }

            catch

            {

                throw;

            }

            finally

            {

                pdf.Close();

            }

        }

        #endregion

        //public static System.Drawing.Image ByteArrayToImage(byte[] input)

        //{

        //    try

        //    {

        //        var ms = new MemoryStream(input);

        //        var tempByteArrayToImage = System.Drawing.Image.FromStream(ms);

        //        ms.Dispose();

        //        return tempByteArrayToImage;

        //    }

        //    catch (Exception ex)

        //    {

        //        //ShowMessage.ShowError(ex.Message);

        //        return null;

        //    }

        //}

        #region GetImageEncoder

        public static System.Drawing.Imaging.ImageCodecInfo GetImageEncoder(string imageType)

        {

            imageType = imageType.ToUpperInvariant();

            foreach (ImageCodecInfo info in ImageCodecInfo.GetImageEncoders())

            {

                if (info.FormatDescription == imageType)

                {

                    return info;

                }

            }

            return null;

        }

        #endregion

    }

Step3:- Create once windows (Win) form and write the code in the page load event or in the in the button click (as your wish to use where ever).

private void Form1_Load(object sender, EventArgs e)

        {

            string path = System.IO.Path.GetDirectoryName(System.Reflection.Assembly.GetExecutingAssembly().GetName().CodeBase);

            string localPath = new Uri(path).LocalPath;

            ExtractImages.ExtractImagesFromPDF(localPath + "\\SAMPLE.pdf", localPath);

        }

Note:-

Make sure place once PDF file having images in the debug folder.

I am using the SAMPLE.PDF file in the Tutorial

After execute the code check the debug folder you will find the extracted images in the folder

And also customize the code as you want base on the requirement