/// <summary>
/// Converting PDF Files TO Specified Image Format
/// </summary>
/// <param name="sourceFileName">Source PDF File Path</param>
/// <param name="DestinationPath">Destination PDF File Path</param>
/// <param name="outPutImageFormat">Type Of Exported Image</param>
/// <returns>Returns Count Of Exported Images</returns>
public int Convert(string sourceFileName, string DestinationPath, ImageFormat outPutImageFormat)
{
if (pdfDoc.Open(sourceFileName))
{
// pdfapp.Hide();
pageCount = pdfDoc.GetNumPages();
for (int i = 0; i < pageCount; i++)
{
pdfPage = (Acrobat.CAcroPDPage)pdfDoc.AcquirePage(i);
pdfPoint = (Acrobat.AcroPoint)pdfPage.GetSize();
pdfRect.Left = 0;
pdfRect.right = pdfPoint.x;
pdfRect.Top = 0;
pdfRect.bottom = pdfPoint.y;
pdfPage.CopyToClipboard(pdfRect, 0, 0, 100);
string outimg = "";
string filename = sourceFileName.Substring(sourceFileName.LastIndexOf("\\"));
if (pageCount == 1)
{
outimg = DestinationPath + "\\" + filename + "." + outPutImageFormat.ToString();
}
else
{
outimg = DestinationPath + "\\" + filename + "_" + i.ToString() + "." + outPutImageFormat.ToString();
}
Clipboard.GetImage().Save(outimg, outPutImageFormat);
////////////Firing Progress Event
OnExportProgressChanging(outimg);
}
Dispose();
}
else
{
Dispose();
throw new System.IO.FileNotFoundException(sourceFileName + " Not Found!");
}
return(pageCount);
}
/// <summary>
/// 将PDF文档转换为图片的方法，你可以像这样调用该方法：ConvertPDF2ImageO2S("F:\\A.pdf", "F:\\", "A", 0, 0, null, 0);
/// 因为大多数的参数都有默认值，startPageNum默认值为1，endPageNum默认值为总页数，
/// imageFormat默认值为ImageFormat.Jpeg，resolution默认值为1
/// </summary>
/// <param name="pdfInputPath">PDF文件路径</param>
/// <param name="imageOutputPath">图片输出路径</param>
/// <param name="imageName">图片的名字，不需要带扩展名</param>
/// <param name="startPageNum">从PDF文档的第几页开始转换，默认值为1</param>
/// <param name="endPageNum">从PDF文档的第几页开始停止转换，默认值为PDF总页数</param>
/// <param name="imageFormat">设置所需图片格式</param>
/// <param name="resolution">设置图片的分辨率，数字越大越清晰，默认值为1</param>
public void ConvertPDF2Image(string pdfInputPath)
{
// Is NULL
if (pdfInputPath == null)
{
m_nConvertStatus = EErrorType.PTJ_FILENAME_EMPTY;
}
if (!System.IO.File.Exists(pdfInputPath))
{
m_nConvertStatus = EErrorType.WPS_FILE_NOTEXISTS;
}
Acrobat.CAcroPDDoc pdfDoc = null;
Acrobat.CAcroPDPage pdfPage = null;
Acrobat.CAcroRect pdfRect = null;
Acrobat.CAcroPoint pdfPoint = null;
ewhCopyJpg = new EventWaitHandle(false, 0, "WPSToJPGPDFToJPGUsingArobat");
try
{
// Create the document (Can only create the AcroExch.PDDoc object using late-binding)
// Note using VisualBasic helper functions, have to add reference to DLL
pdfDoc = (Acrobat.CAcroPDDoc)Microsoft.VisualBasic.Interaction.CreateObject("AcroExch.PDDoc", "");
// validate parameter
if (!pdfDoc.Open(pdfInputPath))
{
throw new FileNotFoundException();
}
if (!Directory.Exists(m_strOutDir))
{
Directory.CreateDirectory(m_strOutDir);
}
m_nTotalPage = pdfDoc.GetNumPages();
PrintLog("ConvertStatus:" + (int)ConvertStatus.START + " " + 0 + " " + m_nTotalPage);
// start to convert each page
for (int i = 1; i <= m_nTotalPage; i++)
{
PrintLog("ConvertStatus:" + (int)ConvertStatus.ING + " " + i + " " + m_nTotalPage);
pdfPage = (Acrobat.CAcroPDPage)pdfDoc.AcquirePage(i - 1);
pdfPoint = (Acrobat.CAcroPoint)pdfPage.GetSize();
pdfRect = (Acrobat.CAcroRect)Microsoft.VisualBasic.Interaction.CreateObject("AcroExch.Rect", "");
// 如果当前分辨率少于1280*720，强制放大
int imgWidth = (int)((double)pdfPoint.x * (int)m_dQuality);
int imgHeight = (int)((double)pdfPoint.y * (int)m_dQuality);
pdfRect.Left = 0;
pdfRect.right = (short)imgWidth;
pdfRect.Top = 0;
pdfRect.bottom = (short)imgHeight;
// 临界区
ewhCopyJpg.WaitOne();
// Render to clipboard, scaled by 100 percent (ie. original size)
// Even though we want a smaller image, better for us to scale in .NET
// than Acrobat as it would greek out small text
pdfPage.CopyToClipboard(pdfRect, 0, 0, (short)(100 * (int)m_dQuality));
IDataObject clipboardData = Clipboard.GetDataObject();
if (clipboardData.GetDataPresent(DataFormats.Bitmap))
{
string strJPGName = m_strOutDir + "\\" + Path.GetFileNameWithoutExtension(pdfInputPath) + "_" + pdfDoc.GetNumPages() + "_" + (i).ToString() + ".jpg";
Bitmap pdfBitmap = (Bitmap)clipboardData.GetData(DataFormats.Bitmap);
pdfBitmap.Save(strJPGName, ImageFormat.Jpeg);
pdfBitmap.Dispose();
}
Clipboard.Clear();
ewhCopyJpg.Set();
}
QuitAcrobat(ref pdfDoc, ref pdfPage, ref pdfRect, ref pdfPoint);
}
catch (Exception ex)
{
PrintLog(ex.Message.ToString());
m_nConvertStatus = EErrorType.PTJ_EXCEPTION_FAILED;
}
finally
{
QuitAcrobat(ref pdfDoc, ref pdfPage, ref pdfRect, ref pdfPoint);
}
}
/// <summary>
/// 将PDF文档转换为图片的方法，你可以像这样调用该方法：ConvertPDF2Image("F:\\A.pdf", "F:\\", "A", 0, 0, null, 0);
/// 因为大多数的参数都有默认值，startPageNum默认值为1，endPageNum默认值为总页数，
/// imageFormat默认值为ImageFormat.Jpeg，resolution默认值为1
/// </summary>
/// <param name="pdfInputPath">PDF文件路径</param>
/// <param name="imageOutputPath">图片输出路径</param>
/// <param name="imageName">图片的名字，不需要带扩展名</param>
/// <param name="startPageNum">从PDF文档的第几页开始转换，默认值为1</param>
/// <param name="endPageNum">从PDF文档的第几页开始停止转换，默认值为PDF总页数</param>
/// <param name="imageFormat">设置所需图片格式</param>
/// <param name="resolution">设置图片的分辨率，数字越大越清晰，默认值为1</param>
public static void ConvertPDF2Image(string pdfInputPath, string imageOutputPath,
string imageName, int startPageNum, int endPageNum, ImageFormat imageFormat, double resolution)
{
Acrobat.CAcroPDDoc pdfDoc = null;
Acrobat.CAcroPDPage pdfPage = null;
Acrobat.CAcroRect pdfRect = null;
Acrobat.CAcroPoint pdfPoint = null;
// Create the document (Can only create the AcroExch.PDDoc object using late-binding)
// Note using VisualBasic helper functions, have to add reference to DLL
pdfDoc = (Acrobat.CAcroPDDoc)Microsoft.VisualBasic.Interaction.CreateObject("AcroExch.PDDoc", "");
// validate parameter
if (!pdfDoc.Open(pdfInputPath))
{
throw new FileNotFoundException();
}
if (!Directory.Exists(imageOutputPath))
{
Directory.CreateDirectory(imageOutputPath);
}
if (startPageNum <= 0)
{
startPageNum = 1;
}
if (endPageNum > pdfDoc.GetNumPages() || endPageNum <= 0)
{
endPageNum = pdfDoc.GetNumPages();
}
if (startPageNum > endPageNum)
{
int tempPageNum = startPageNum; startPageNum = endPageNum; endPageNum = startPageNum;
}
if (imageFormat == null)
{
imageFormat = ImageFormat.Jpeg;
}
if (resolution <= 0)
{
resolution = 1;
}
// start to convert each page
for (int i = startPageNum; i <= endPageNum; i++)
{
pdfPage = (Acrobat.CAcroPDPage)pdfDoc.AcquirePage(i - 1);
pdfPoint = (Acrobat.CAcroPoint)pdfPage.GetSize();
pdfRect = (Acrobat.CAcroRect)Microsoft.VisualBasic.Interaction.CreateObject("AcroExch.Rect", "");
int imgWidth = (int)((double)pdfPoint.x * resolution);
int imgHeight = (int)((double)pdfPoint.y * resolution);
pdfRect.Left = 0;
pdfRect.right = (short)imgWidth;
pdfRect.Top = 0;
pdfRect.bottom = (short)imgHeight;
// Render to clipboard, scaled by 100 percent (ie. original size)
// Even though we want a smaller image, better for us to scale in .NET
// than Acrobat as it would greek out small text
pdfPage.CopyToClipboard(pdfRect, 0, 0, (short)(100 * resolution));
IDataObject clipboardData = Clipboard.GetDataObject();
if (clipboardData.GetDataPresent(DataFormats.Bitmap))
{
Bitmap pdfBitmap = (Bitmap)clipboardData.GetData(DataFormats.Bitmap);
pdfBitmap.Save(Path.Combine(imageOutputPath, imageName) + i.ToString() + "." + imageFormat.ToString(), imageFormat);
pdfBitmap.Dispose();
}
}
pdfDoc.Close();
Marshal.ReleaseComObject(pdfPage);
Marshal.ReleaseComObject(pdfRect);
Marshal.ReleaseComObject(pdfDoc);
Marshal.ReleaseComObject(pdfPoint);
}
private void GetImgFromClipboard()
{
try
{
string pdfInputPath = tempFilePath;
string imageOutputPath = savePath;
//string pdfInputPath = @"D:\pdfImgs\test.pdf";
//string imageOutputPath = @"D:\pdfImgs\";
int startPageNum = 1;
ImageFormat imageFormat = ImageFormat.Jpeg;
int resolution = 1;
Acrobat.CAcroPDDoc pdfDoc = null;
Acrobat.CAcroPDPage pdfPage = null;
Acrobat.CAcroRect pdfRect = null;
Acrobat.CAcroPoint pdfPoint = null;
// Create the document (Can only create the AcroExch.PDDoc object using late-binding)
// Note using VisualBasic helper functions, have to add reference to DLL
pdfDoc = (Acrobat.CAcroPDDoc)Microsoft.VisualBasic.Interaction.CreateObject("AcroExch.PDDoc", "");
// validate parameter
if (!pdfDoc.Open(pdfInputPath))
{
throw new FileNotFoundException();
}
if (!Directory.Exists(imageOutputPath))
{
Directory.CreateDirectory(imageOutputPath);
}
int endPageNum = pdfDoc.GetNumPages();
if (startPageNum <= 0)
{
startPageNum = 1;
}
if (endPageNum > pdfDoc.GetNumPages() || endPageNum <= 0)
{
endPageNum = pdfDoc.GetNumPages();
}
if (startPageNum > endPageNum)
{
int tempPageNum = startPageNum;
startPageNum = endPageNum; endPageNum = startPageNum;
}
if (imageFormat == null)
{
imageFormat = ImageFormat.Jpeg;
}
if (resolution <= 0)
{
resolution = 1;
}
// start to convert each page
for (int i = startPageNum; i <= endPageNum; i++)
{
pdfPage = (Acrobat.CAcroPDPage)pdfDoc.AcquirePage(i - 1);
pdfPoint = (Acrobat.CAcroPoint)pdfPage.GetSize();
pdfRect = (Acrobat.CAcroRect)Microsoft.VisualBasic.Interaction.CreateObject("AcroExch.Rect", "");
int imgWidth = (int)((double)pdfPoint.x * resolution);
int imgHeight = (int)((double)pdfPoint.y * resolution);
pdfRect.Left = 0;
pdfRect.right = (short)imgWidth;
pdfRect.Top = 0;
pdfRect.bottom = (short)imgHeight;
// Render to clipboard, scaled by 100 percent (ie. original size)
// Even though we want a smaller image, better for us to scale in .NET
// than Acrobat as it would greek out small text
bool b = pdfPage.CopyToClipboard(pdfRect, 0, 0, (short)(100 * resolution));
IDataObject clipboardData = Clipboard.GetDataObject();
if (clipboardData.GetDataPresent(DataFormats.Bitmap))
{
Bitmap pdfBitmap = (Bitmap)clipboardData.GetData(DataFormats.Bitmap);
string imtName = i.ToString() + ".jpg";
pdfBitmap.Save(imageOutputPath + "\\" + imtName, imageFormat);
pdfBitmap.Dispose();
}
}
if (endPageNum > 0)
{
StringBuilder sb = new StringBuilder();
sb.Append(string.Format("delete from PreviewFile where AttachmentId={0};", lastCheckId));
for (int num = 1; num <= endPageNum; num++)
{
string filename = imageOutputPath + "\\" + num.ToString() + ".jpg";
sb.Append(string.Format("insert into PreviewFile(AttachmentId,SavePath,CreateTime)values({0},'{1}','{2}');", lastCheckId, filename.Replace(sourcePath, "").Replace("\\", "/"), DateTime.Now));
Thread.Sleep(1000);
}
var result = SqlHelper.ExecteNonQueryText(sb.ToString(), null);
if (result > 0)
{
}
else
{
RecodeErroeData(lastCheckId);
}
}
pdfDoc.Close();
Marshal.ReleaseComObject(pdfPage);
Marshal.ReleaseComObject(pdfRect);
Marshal.ReleaseComObject(pdfDoc);
Marshal.ReleaseComObject(pdfPoint);
}
catch (Exception ex)
{
LogControl.LogInfo("从剪切板获取PDF图片异常lastCheckId:" + lastCheckId + " " + ex.ToString());
RecodeErroeData(lastCheckId);
}
}
/// <summary>
/// PDF转Image
/// </summary>
/// <param name="pdfInputPath">PDF文件</param>
/// <param name="imageOutputPath">图片文件路径</param>
/// <param name="imageName">图片名称</param>
/// <param name="startPageNum">从第几页开始</param>
/// <param name="endPageNum">到第几页结束</param>
/// <param name="imageFormat">生成图片类型</param>
/// <param name="resolution">显示倍数</param>
public bool ConvertPDF2Image(string pdfInputPath, string imageOutputPath,
string imageName, string Hospsampleid, int startPageNum, int endPageNum, ImageFormat imageFormat, double resolution)
{
bool falg = true;
List <string> Sqllst = new List <string>();
//执行的SQL集合
string errormsg = "";
SortedList SQLlist = new SortedList(new MySort());
int errcount = 0; //标记当前pdf每页是否都已经转图片成功
Acrobat.CAcroPDDoc pdfDoc = (Acrobat.CAcroPDDoc)Microsoft.VisualBasic.Interaction.CreateObject("AcroExch.PDDoc", "");
Acrobat.CAcroPDPage pdfPage = null;
Acrobat.CAcroRect pdfRect = null;
Acrobat.CAcroPoint pdfPoint = null;
try
{
//yhl 2017.3.22pdf转图片之前先清空粘贴板信息，防止图片信息没清空，下个条码存了上个条码的信息
//IDataObject clipboardData1 = Clipboard.GetDataObject();
//if (clipboardData1.GetDataPresent(DataFormats.Bitmap))
//{
Clipboard.Clear();
// }
// Create the document (Can only create the AcroExch.PDDoc object using late-binding)
// Note using VisualBasic helper functions, have to add reference to DLL
// pdfDoc = (Acrobat.CAcroPDDoc)Microsoft.VisualBasic.Interaction.CreateObject("AcroExch.PDDoc", "");//.CreateObject("AcroExch.PDDoc", "");
//var CreatePdf = Microsoft.VisualBasic.Interaction.CreateObject("AcroExch.PDDoc", "");
// pdfDoc = (Acrobat.CAcroPDDoc)CreatePdf;
// pdfPage.CopyToClipboard(pdfRect, 0, 0, 100);
// validate parameter
if (!pdfDoc.Open(pdfInputPath))
{
throw new FileNotFoundException();
}
if (!Directory.Exists(imageOutputPath))
{
Directory.CreateDirectory(imageOutputPath);
}
if (startPageNum <= 0)
{
startPageNum = 1;
}
if (endPageNum > pdfDoc.GetNumPages() || endPageNum <= 0)
{
endPageNum = pdfDoc.GetNumPages();
}
if (startPageNum > endPageNum)
{
int tempPageNum = startPageNum; startPageNum = endPageNum; endPageNum = startPageNum;
}
if (imageFormat == null)
{
imageFormat = ImageFormat.Jpeg;
}
if (resolution <= 0)
{
resolution = 1;
}
// start to convert each page
for (int i = startPageNum; i <= endPageNum; i++)
{
pdfPage = (Acrobat.CAcroPDPage)pdfDoc.AcquirePage(i - 1);
pdfPoint = (Acrobat.CAcroPoint)pdfPage.GetSize();
pdfRect = (Acrobat.CAcroRect)Microsoft.VisualBasic.Interaction.CreateObject("AcroExch.Rect", "");
int imgWidth = (int)((double)pdfPoint.x * resolution);
int imgHeight = (int)((double)pdfPoint.y * resolution);
pdfRect.Left = 0;
pdfRect.right = (short)imgWidth;
pdfRect.Top = 0;
pdfRect.bottom = (short)imgHeight;
pdfPage.CopyToClipboard(pdfRect, 0, 0, (short)(100 * resolution));
IDataObject clipboardData = Clipboard.GetDataObject();
if (clipboardData.GetDataPresent(DataFormats.Bitmap))
{
Bitmap pdfBitmap = (Bitmap)clipboardData.GetData(DataFormats.Bitmap);
pdfBitmap.Save(Path.Combine(imageOutputPath, imageName) + "_" + i + ".jpg", imageFormat);
pdfBitmap.Dispose();
}
string imgpath = Path.Combine(imageOutputPath, imageName) + "_" + i + ".jpg";
if (!File.Exists(imgpath) || File.ReadAllBytes(imgpath).Count() <= 0)
{
errcount++;
}
string imageAddress = getImageString(Path.Combine(imageOutputPath, imageName) + "_" + i + ".jpg");
int maxid = new TableIDDAO().GetNextId("DAAN_LIS_REPORT");
DAAN_LIS_REPORT dalisReport = new DAAN_LIS_REPORT();
dalisReport.DAAN_ID = maxid.ToString();
dalisReport.DAAN_JPG = Convert.FromBase64String(imageAddress);
dalisReport.DAAN_BAR_CODE = Hospsampleid;
SQLlist.Add(new Hashtable()
{
{ "INSERT", "InsertDAAN_LIS_REPORT" }
}, dalisReport);
}
pdfDoc.Close();
Marshal.ReleaseComObject(pdfPage);
Marshal.ReleaseComObject(pdfRect);
Marshal.ReleaseComObject(pdfDoc);
Marshal.ReleaseComObject(pdfPoint);
falg = service.ExecuteSqlTran(SQLlist, ref errormsg);
}
catch (Exception ex)
{
string message = ex.Message;
SetTB(imageName + "条码转换失败！" + ex.Message);
falg = false;
errcount++;
pdfDoc.Close();
Marshal.ReleaseComObject(pdfPage);
Marshal.ReleaseComObject(pdfRect);
Marshal.ReleaseComObject(pdfDoc);
Marshal.ReleaseComObject(pdfPoint);
}
if (errcount > 0)
{
falg = false;
}
return(falg);
}
private Boolean pdf_exec(OfficeDomain office)
{
Boolean result = false;
log("pdf开始工作...");
if (File.Exists(office.pdfFileName))
{
Acrobat.CAcroPDPage pdfPage;
Acrobat.CAcroPoint pdfPoint;
int pageCount = 0;
double resolution = 1.2;
//打开 pdf
bool ret = pdfDoc.Open(office.pdfFileName);
if (!ret)
{
error("pdf打开失败了,尝试重启pdf程序");
pdf_start();
}
else
{
try
{
//pdf 页码
pageCount = pdfDoc.GetNumPages();
log("pdf检测页码:{0}", pageCount);
//缓存文件
office.result = "+" + pageCount;
string info = Path.Combine(office.fileName, "0.info");
if (!File.Exists(info))
{
File.WriteAllText(info, pageCount + "");
log("成功缓存页码");
}
//循环生成pdf
for (int i = 0; i < pageCount; i++)
{
string pngName = Path.Combine(office.fileName, i + "") + ".png";
if (File.Exists(pngName))
{
warn("第 {0} 张 skip", i + 1);
continue;
}
pdfPage = (Acrobat.CAcroPDPage)pdfDoc.AcquirePage(i);
pdfPoint = (Acrobat.CAcroPoint)pdfPage.GetSize();
int imgWidth = (int)((double)pdfPoint.x * resolution);
int imgHeight = (int)((double)pdfPoint.y * resolution);
pdfRect.right = (short)imgWidth;
pdfRect.Left = 0;
pdfRect.Top = 0;
pdfRect.bottom = (short)imgHeight;
pdfPage.CopyToClipboard(pdfRect, 0, 0, (short)(100 * resolution));
IDataObject clipboardData = Clipboard.GetDataObject();
if (clipboardData != null && clipboardData.GetDataPresent(DataFormats.Bitmap))
{
Bitmap pdfBitmap = (Bitmap)clipboardData.GetData(DataFormats.Bitmap);
if (pdfBitmap != null)
{
pdfBitmap.Save(pngName, ImageFormat.Png);
pdfBitmap.Dispose();
log("第 {0} 张 created", i);
}
else
{
error("第 {0} 张 error", i);
}
}
else
{
error("第 {0} 张 error", i);
}
Marshal.ReleaseComObject(pdfPage);
}
result = true;
log("pdf工作完毕,准备关闭文件");
try
{
pdfDoc.Close();
log("pdf文件关闭成功");
}
catch (Exception e)
{
error("pdf文件关闭失败:{0},尝试重启程序", e.Message);
pdf_start();
}
}
catch (Exception e2)
{
error("pdf转换失败:{0}", e2.Message);
}
}
}
else
{
error("pdf工作时发现PDF文件不存在");
}
return(result);
}
/* private static void TurnTheImageToPdf(ref List<System.Drawing.Image> allName)
* {
* throw new NotImplementedException();
* }*/
//ConvertPDF2Image(string pdfInputPath, string imageOutputPath, string imageName, int startPageNum, int endPageNum, ImageFormat imageFormat, double resolution)
//将pdfInputPath改成得到的pdfToPdfPath路径
/*public static void ConvertPDF2Image(List<string> pdfInputPath,string outpath ,int startPageNum, int endPageNum, ImageFormat imageFormat, double resolution)
* {
* string imageinputPath=pdfInputPath[0];
* string imageOutputPath = outpath;
* string imageName;
* int flag=0;
* Acrobat.CAcroPDDoc pdfDoc = null;
* Acrobat.CAcroPDPage pdfPage = null;
* Acrobat.CAcroRect pdfRect = null;
* Acrobat.CAcroPoint pdfPoint = null;
* pdfDoc = (Acrobat.CAcroPDDoc)Microsoft.VisualBasic.Interaction.CreateObject("AcroExch.PDDoc", "");
* if (!pdfDoc.Open(imageinputPath))
* {
* throw new FileNotFoundException();
* }
*
* if (!Directory.Exists(imageOutputPath))
* {
* Directory.CreateDirectory(imageOutputPath);
* }
*
* if (startPageNum <= 0)
* {
* startPageNum = 1;
* }
* if (endPageNum > pdfDoc.GetNumPages())
* {
* endPageNum = pdfDoc.GetNumPages();
* }
* if (startPageNum > endPageNum)
* {
* int tempPageNum = startPageNum;
* startPageNum = endPageNum;
* endPageNum = startPageNum;
* }
* for(int i=0;i< pdfInputPath.Count; i++)
* {
* string fileName = pdfInputPath[i].Substring(0, pdfInputPath[i].Length - 4);
* imageOutputPath = pdfInputPath[i].Substring(0, pdfInputPath[i].Length - 4);//这里有问题
* imageName = fileName;
* flag++;
* for (int j = startPageNum; j <= endPageNum; j++)
* {
* pdfPage = (Acrobat.CAcroPDPage)pdfDoc.AcquirePage(j - 1);
* pdfPoint = (Acrobat.CAcroPoint)pdfPage.GetSize();
* pdfRect = (Acrobat.CAcroRect)Microsoft.VisualBasic.Interaction.CreateObject("AcroExch.Rect", "");
* int imgWidth = (int)((double)pdfPoint.x * resolution);
* int imgHeight = (int)((double)pdfPoint.y * resolution);
* pdfRect.Left = 0;
* pdfRect.right = (short)imgWidth;
* pdfRect.Top = 0;
* pdfRect.bottom = (short)imgHeight;
* pdfPage.CopyToClipboard(pdfRect, 0, 0, (short)(100 * resolution));
* IDataObject clipboardData = Clipboard.GetDataObject();
* if (clipboardData.GetDataPresent(DataFormats.Bitmap))
* {
* Bitmap pdfBitmap = (Bitmap)clipboardData.GetData(DataFormats.Bitmap);
* pdfBitmap.Save(Path.Combine(imageOutputPath, imageName)+ ".Jpeg", imageFormat);
* pdfBitmap.Dispose();
* }
* }
*
*
* }
* if (flag == pdfInputPath.Count) {
* MessageBox.Show("转化成功");
* }
*
* }*/
//将小pdf转换成图片
public static string ConvertPDF2Image(string pdfInputPath, string imageOutputPath, string imageName, int startPageNum, int endPageNum, ImageFormat imageFormat, double resolution)
{
string imagePath = null;
Acrobat.CAcroPDDoc pdfDoc = null;
Acrobat.CAcroPDPage pdfPage = null;
Acrobat.CAcroRect pdfRect = null;
Acrobat.CAcroPoint pdfPoint = null;
pdfDoc = (Acrobat.CAcroPDDoc)Microsoft.VisualBasic.Interaction.CreateObject("AcroExch.PDDoc", "");
if (!pdfDoc.Open(pdfInputPath))
{
throw new FileNotFoundException();
}
if (!Directory.Exists(imageOutputPath))
{
Directory.CreateDirectory(imageOutputPath);
}
if (startPageNum <= 0)
{
startPageNum = 1;
}
if (endPageNum > pdfDoc.GetNumPages())
{
endPageNum = pdfDoc.GetNumPages();
}
if (startPageNum > endPageNum)
{
int tempPageNum = startPageNum;
startPageNum = endPageNum;
endPageNum = startPageNum;
}
for (int i = startPageNum; i <= endPageNum; i++)
{
pdfPage = (Acrobat.CAcroPDPage)pdfDoc.AcquirePage(i - 1);
pdfPoint = (Acrobat.CAcroPoint)pdfPage.GetSize();
pdfRect = (Acrobat.CAcroRect)Microsoft.VisualBasic.Interaction.CreateObject("AcroExch.Rect", "");
int imgWidth = (int)((double)pdfPoint.x * resolution);
int imgHeight = (int)((double)pdfPoint.y * resolution);
pdfRect.Left = 0;
pdfRect.right = (short)imgWidth;
pdfRect.Top = 0;
pdfRect.bottom = (short)imgHeight;
pdfPage.CopyToClipboard(pdfRect, 0, 0, (short)(100 * resolution));
IDataObject clipboardData = Clipboard.GetDataObject();
if (clipboardData.GetDataPresent(DataFormats.Bitmap))
{
Bitmap pdfBitmap = (Bitmap)clipboardData.GetData(DataFormats.Bitmap);
pdfBitmap.Save(Path.Combine(imageOutputPath, imageName) + ".Png", imageFormat);
pdfBitmap.Dispose();
}
}
pdfDoc.Close();
imagePath = imageName + ".Png";
System.Runtime.InteropServices.Marshal.ReleaseComObject(pdfPage);
System.Runtime.InteropServices.Marshal.ReleaseComObject(pdfRect);
System.Runtime.InteropServices.Marshal.ReleaseComObject(pdfDoc);
System.Runtime.InteropServices.Marshal.ReleaseComObject(pdfPoint);
return(imagePath);
}