public static void ConvertPDF2Image(string pdfInputPath, string imageOutputPath, string imageName, int startPageNum, int endPageNum, ImageFormat imageFormat, Definition definition) { PDFWrapper pdfWrapper = new PDFWrapper(); pdfWrapper.LoadPDF(pdfInputPath); if (!System.IO.Directory.Exists(imageOutputPath)) { Directory.CreateDirectory(imageOutputPath); } // validate pageNum if (startPageNum <= 0) { startPageNum = 1; } if (endPageNum > pdfWrapper.PageCount) { endPageNum = pdfWrapper.PageCount; } if (startPageNum > endPageNum) { int tempPageNum = startPageNum; startPageNum = endPageNum; endPageNum = startPageNum; } // start to convert each page for (int i = startPageNum; i <= endPageNum; i++) { pdfWrapper.ExportJpg(imageOutputPath + imageName, i, i, 300, 90);//这里可以设置输出图片的页数、大小和图片质量从默认的150--》300 while (pdfWrapper.IsJpgBusy == true) { System.Threading.Thread.Sleep(500); } } pdfWrapper.Dispose(); }
public static void ConvertPDFtoJPG(string name) { using (var fs = new FileStream(name, FileMode.OpenOrCreate)) { var _pdfDoc = new PDFWrapper(); _pdfDoc.LoadPDF(fs); for (int i = 0; i < _pdfDoc.PageCount; i++) { var fileName = Path.Combine(Path.GetDirectoryName(name).Replace(@"D:\temp\New folder\", ""), $"{Path.GetFileNameWithoutExtension(name)}-page-{i + 1}.jpg"); Image img = RenderPage(_pdfDoc, i); var tn = img.GetThumbnailImage(150, 200, () => { return(true); }, IntPtr.Zero); using (var ms = new MemoryStream()) { tn.Save(ms, ImageFormat.Jpeg); ms.Seek(0, SeekOrigin.Begin); SCS(ms, fileName, i); } Console.WriteLine($"saved: {fileName}"); } Console.WriteLine(name); _pdfDoc.Dispose(); } }
public bool UnloadPdf() { if (mypdfDoc != null) { //MessageBox.Show("UnloadPDF"); mypdfDoc.Dispose(); mypdfDoc = null; return(true); } return(false); }
protected override void Dispose(bool disposing) { if (!_disposed && disposing) { if (_document != null) { _document.Dispose(); _document = null; } if (_dummyControl != null) { _dummyControl.Dispose(); _dummyControl = null; } _disposed = true; } }
/// <summary> /// pdf分页转图片 /// </summary> /// <param name="attachmentId">附件id</param> /// <param name="sourcePath">文件原始路劲</param> /// <param name="fileInputPath">文件路劲(临时文件路劲)</param> /// <param name="fileSavePath">文件要保存的路劲</param> /// <param name="imageFormat">图片格式</param> /// <param name="DPI">图片分辨率(数值越大质量越高)</param> /// <param name="definition">清晰度(数值越大质量越高)</param> /// <returns></returns> public bool PdfToImg(int attachmentId, string sourcePath, string fileInputPath, string fileSavePath, ImageFormat imageFormat, int DPI, int definition) { try { List <int> list = new List <int>(); PDFWrapper wrapper = new PDFWrapper(); wrapper.LoadPDF(fileInputPath); if (!Directory.Exists(fileSavePath)) { Directory.CreateDirectory(fileSavePath); } var pageCount = wrapper.PageCount; StringBuilder sb = new StringBuilder(); if (pageCount > 0) { sb.Append(string.Format("delete from PreviewFile where AttachmentId={0};", attachmentId)); for (int num = 1; num <= pageCount; num++) { string filename = fileSavePath + "\\" + num.ToString() + "." + imageFormat.ToString(); if (File.Exists(filename)) { File.Delete(filename); } wrapper.ExportJpg(filename, num, num, (double)DPI, definition); sb.Append(string.Format("insert into PreviewFile(AttachmentId,SavePath,CreateTime)values({0},'{1}','{2}');", attachmentId, fileSavePath.Replace(sourcePath, "").Replace("\\", "/"), DateTime.Now)); Thread.Sleep(1000); } wrapper.Dispose(); var result = SqlHelper.ExecteNonQueryText(sb.ToString(), null); return(result > 0); } else { return(true); } } catch (Exception exception) { throw exception; } }
/// <summary> /// 将PDF文档转换为图片的方法 /// </summary> /// <param name="pdfInputPath">PDF文件路径</param> /// <param name="imageOutputPath">图片输出路径</param> /// <param name="imageName">生成图片的名字</param> /// <param name="startPageNum">从PDF文档的第几页开始转换</param> /// <param name="endPageNum">从PDF文档的第几页开始停止转换</param> /// <param name="imageFormat">设置所需图片格式</param> /// <param name="definition">设置图片的清晰度,数字越大越清晰</param> public static void ConvertPDF2Image(string pdfInputPath, string imageOutputPath, string imageName, int startPageNum, int endPageNum, ImageFormat imageFormat, Definition definition) { PDFWrapper pdfWrapper = new PDFWrapper(); pdfWrapper.LoadPDF(pdfInputPath); if (!System.IO.Directory.Exists(imageOutputPath)) { Directory.CreateDirectory(imageOutputPath); } // validate pageNum if (startPageNum <= 0) { startPageNum = 1; } if (endPageNum > pdfWrapper.PageCount) { endPageNum = pdfWrapper.PageCount; } if (startPageNum > endPageNum) { int tempPageNum = startPageNum; startPageNum = endPageNum; endPageNum = startPageNum; } // start to convert each page for (int i = startPageNum; i <= endPageNum; i++) { pdfWrapper.ExportJpg(imageOutputPath + imageName + i.ToString() + ".jpg", i, i, 150, 90);//这里可以设置输出图片的页数、大小和图片质量 if (pdfWrapper.IsJpgBusy) { System.Threading.Thread.Sleep(50); } } pdfWrapper.Dispose(); }
/// <summary> /// 调用PDFLibNet生成图片(如果pdf文件有特殊字体,无法转化) /// </summary> private static void GetImgFromPDFLibNet() { string pdfInputPath = AppDomain.CurrentDomain.BaseDirectory + "test.pdf"; string imageOutputPath = AppDomain.CurrentDomain.BaseDirectory + @"\Pdf2Img\"; ImageFormat imageFormat = ImageFormat.Png; int DPI = 200; int definition = 30; try { List <int> list = new List <int>(); PDFWrapper wrapper = new PDFWrapper(); wrapper.LoadPDF(pdfInputPath); if (!Directory.Exists(imageOutputPath)) { Directory.CreateDirectory(imageOutputPath); } if (list.Count == 0) { for (int i = 1; i <= wrapper.PageCount; i++) { list.Add(i); } } foreach (int num in list) { string filename = imageOutputPath + num.ToString() + "." + imageFormat.ToString(); wrapper.ExportJpg(filename, num, num, (double)DPI, definition); Thread.Sleep(1000); Console.WriteLine("生成图片" + filename); } wrapper.Dispose(); } catch (Exception exception) { Console.WriteLine("异常" + exception.ToString()); } }
/// <summary> /// Form initialization /// </summary> /// <param name="fileName">fileName</param> private void FormInitial(string fileName) { rmsUserpEncrypt = true; if (outPutStream != null) { outPutStream.Close(); outPutStream.Dispose(); } if (!tempFile.Equals(string.Empty)) { if (File.Exists(tempFile + ".tmp")) { WipeFile(tempFile + ".tmp", 1); } tempFile = string.Empty; } if (pdfDoc != null) { pdfDoc.Dispose(); pdfDoc = null; } pdfDoc = new PDFWrapper(); if (!LoadFileByStream(fileName)) { return; } //set zoomRate if (zoomRate.Count == 0) { zoomRate.Add(-3, 0.25); zoomRate.Add(-2, 0.5); zoomRate.Add(-1, 0.75); zoomRate.Add(0, 1); zoomRate.Add(1, 1.25); zoomRate.Add(2, 1.5); zoomRate.Add(3, 2); zoomRate.Add(4, 4); } foreach (string item in ddlZoom.Items) { if (item.Equals((zoomRate[currentZoom] * 100).ToString() + "%")) { ddlZoom.SelectedIndex = currentZoom - (-3); } } currentPage = pdfDoc.CurrentPage; pageCount = pdfDoc.PageCount; tslblPageAll.Text = "/" + pageCount.ToString(); tstbPageIndex.Text = currentPage.ToString(); SetPictureBoxImage(); this.WindowState = FormWindowState.Maximized; this.pnlForm.Focus(); }
private void tsbOpen_Click(object sender, EventArgs e) { try { OpenFileDialog dlg = new OpenFileDialog(); dlg.Filter = "Portable Document Format (*.pdf)|*.pdf"; if (dlg.ShowDialog() == DialogResult.OK) { if (_pdfDoc != null) { _pdfDoc.Dispose(); _pdfDoc = null; } //if (_pdfDoc == null) //{ _pdfDoc = new PDFWrapper(); _pdfDoc.RenderNotifyFinished += new RenderNotifyFinishedHandler(_pdfDoc_RenderNotifyFinished); _pdfDoc.PDFLoadCompeted += new PDFLoadCompletedHandler(_pdfDoc_PDFLoadCompeted); _pdfDoc.PDFLoadBegin += new PDFLoadBeginHandler(_pdfDoc_PDFLoadBegin); //} //xPDFParams.ErrorQuiet =true; //xPDFParams.ErrorFile = "C:\\stderr.log"; //} int ts = Environment.TickCount; using (StatusBusy sb = new StatusBusy(Resources.UIStrings.StatusLoadingFile)) { if (LoadFile(dlg.FileName, _pdfDoc)) { Text = string.Format(Resources.UIStrings.StatusFormCaption, _pdfDoc.Author, _pdfDoc.Title); FillTree(); _pdfDoc.CurrentPage = 1; UpdateText(); _pdfDoc.FitToWidth(pageViewControl1.Handle); _pdfDoc.RenderPage(pageViewControl1.Handle); Render(); PDFPage pg = _pdfDoc.Pages[1]; listView2.TileSize = new Size(134, (int)(128 * pg.Height / pg.Width) + 10); listView2.BeginUpdate(); listView2.Clear(); for (int i = 0; i < _pdfDoc.PageCount; ++i) { listView2.Items.Add((i + 1).ToString()); } listView2.EndUpdate(); //pg.LoadThumbnail(128, (int)(128 * pg.Height / pg.Width)); } } } } catch (System.IO.IOException ex) { MessageBox.Show(ex.Message, "IOException"); } catch (System.Security.SecurityException ex) { MessageBox.Show(ex.Message, "SecurityException"); } catch (System.IO.InvalidDataException ex) { MessageBox.Show(ex.Message, "InvalidDataException"); } }