HYTOS

using pdftron.PDF;

using pdftron.SDF;

using System;

using System.Collections.Generic;

using System.ComponentModel;

using System.Data;

using System.Drawing;

using System.Drawing.Imaging;

using System.IO;

using System.Linq;

using System.Text;

using System.Threading.Tasks;

using System.Windows.Forms;

namespace PDF_TO_IMAGE

{

    public partial class ConvertImage : Form

    {

        public ConvertImage()

        {

            InitializeComponent();

            Combo_DPI.Text = Properties.Settings.Default._Dpi;

            Txt_Height.Text = Properties.Settings.Default._Height;

            Txt_Width.Text = Properties.Settings.Default._Width;

        }

        private void Btn_LoadPDF_Click(object sender, EventArgs e)

        {

            OpenFileDialog OFD = new OpenFileDialog();

            OFD.Filter = "PDF Files (.PDF)|*.PDF";

            if (OFD.ShowDialog() == DialogResult.OK)

            {

                string pdfpath = OFD.FileName;

                Txt_PDFPath.Text = pdfpath;

            }

        }

        private static ImageCodecInfo GetEncoderInfo(String mimeType)

        {

            int j;

            ImageCodecInfo[] encoders;

            encoders = ImageCodecInfo.GetImageEncoders();

            for (j = 0; j < encoders.Length; ++j)

            {

                if (encoders[j].MimeType == mimeType)

                    return encoders[j];

            }

            return null;

        }

        private bool ConvertPdfToImage(string FilePath)

        {

            string sPathNonExtension = FilePath.Replace(Path.GetExtension(FilePath), "");

            pdftron.PDFNet.Initialize("daelim.co.kr(Doftech Corp):CPU:2::W:AMC(20120315):EF6E886F25A414FFB5F8C1F2999CF2DA33DC6C5164315BAF7011B87AF0FA");

            using (PDFDoc doc = new PDFDoc(FilePath))

            {

                Bitmap newBmp_;

                ImageCodecInfo DefaultImageCodecInfo = GetEncoderInfo("image/png");

                EncoderParameters DefaultEncoderParameters = new EncoderParameters(2);

                System.Drawing.Imaging.Encoder QualityEncoder = System.Drawing.Imaging.Encoder.Quality;

                System.Drawing.Imaging.Encoder ColorDepthEncoder = System.Drawing.Imaging.Encoder.ColorDepth;

                DefaultEncoderParameters.Param[0] = new EncoderParameter(QualityEncoder, 100L);

                DefaultEncoderParameters.Param[1] = new EncoderParameter(ColorDepthEncoder, 8L);

                #region 이미지 만들기

                for (int i = 1; i < doc.GetPageCount() + 1; i++)

                {

                    try

                    {

                        using (pdftron.PDF.PDFDraw draw = new pdftron.PDF.PDFDraw())

                        {

                            float fDpix = 600;

                            float fDpiy = 600;

                            //int iWidth =  10000;

                            //int iHeight = 10000;

                            try

                            {fDpix = float.Parse(Combo_DPI.Text);

                            fDpiy = float.Parse(Combo_DPI.Text);}

                            catch

                            {}

                            //try

                            //{iWidth = int.Parse(Properties.Settings.Default._Width);

                            //iHeight = int.Parse(Properties.Settings.Default._Height);

                            //}catch{ }

                            ElementBuilder bld = new ElementBuilder();

                            ElementWriter writer = new ElementWriter();

                            //var widthData = (int)doc.GetPage(i).GetPageWidth();

                            //int heightData = (int)doc.GetPage(i).GetPageHeight();

                            var rotation = doc.GetPage(i).GetRotation();

                          //  draw.SetImageSize((int)(widthData * 2), (int)(heightData * 2), true);

                         //   draw.SetImageSize(iWidth, iHeight, true);

                            draw.SetAntiAliasing(true);

                            draw.SetDPI(fDpix);

                            newBmp_ = draw.GetBitmap(doc.GetPage(i));

                            using (MemoryStream _savestream = new MemoryStream())

                            {

                                newBmp_.Save(_savestream, DefaultImageCodecInfo, DefaultEncoderParameters);

                                newBmp_ = new Bitmap(_savestream);

                                ObjSet objset = new ObjSet();

                                Obj jbig2_hint = objset.CreateName("png");

                                string pagePath = sPathNonExtension;

                                if (i > 1)

                                {

                                    pagePath = sPathNonExtension + "_" + i;

                                }

                                newBmp_.Save(pagePath + "_" + fDpix +".png");

                                newBmp_.Dispose();

                            }

                            GC.Collect();

                            GC.WaitForPendingFinalizers();

                        }

                    }

                    catch (Exception ex)

                    {

                        return false;

                    }

                }

                if(doc.GetPageCount() > 0)

                {

                    MessageBox.Show("변환완료");

                }

                    #endregion

                    return true;

            }

        }

        private void Btn_Convert_Click(object sender, EventArgs e)

        {

            int iDpi = 0;

            if(Txt_PDFPath.Text != "" && int.TryParse(Combo_DPI.Text,out iDpi) == true)

            {

                Properties.Settings.Default._Dpi = Combo_DPI.Text;

                Properties.Settings.Default._Height = Txt_Height.Text;

                Properties.Settings.Default._Width = Txt_Width.Text;

                Properties.Settings.Default.Save();

                ConvertPdfToImage(Txt_PDFPath.Text);

            }

            else

            {

                MessageBox.Show("PDF 경로와 DPI를 확인해주세요");

            }

        }

    }

}