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近日，我们更新了.NET平台Spire.PDF v6.5.6 2020年5月更新，该版本支持添加和转换SVG图片到PDF，并修复了将PDF转换为Word、提取文本以及填充TextBoxField时出现的一些问题。

下载Spire.PDF for .NET最新版

与此同时Java平台Spire.PDF迎来了5月的又一次更新，该版本支持PDF签名添加时间戳、设置在PDF页面是否显示签名信息以及绘制箭头、云朵、椭圆、矩形和连接线条形状等标记。另外，也修复了在提取PDF中的文本、将PDF转为图片时出现的一些问题，具体更新情况如下：

下载Spire.PDF for Java最新版

Spire.PDF For .NET更新内容

新功能

• 支持添加SVG图片到PDF

  PdfDocument doc1 = new PdfDocument();
  doc1.LoadFromSvg(inputFile_svg);
  PdfDocument doc2 = new PdfDocument();
  doc2.LoadFromFile(inputFile_pdf);
  PdfTemplate template = doc1.Pages[0].CreateTemplate();
  template.Draw(doc2.Pages[0].Canvas, new PointF());
  doc2.SaveToFile(outputFile, FileFormat.PDF);

• 支持转SVG图片到PDF

  PdfDocument doc = new PdfDocument();
  doc.LoadFromSvg("test.svg");
  doc.SaveToFile("result.pdf", FileFormat.PDF);

Bug修复

• 优化了查找文本内存增长问题
• 修复了转换PDF到Word文本位置不正确的问题
• 修复了提取的文本内容不正确的问题
• 修复了不能在XFASignatureField 已有域上签名的问题
• 修复了获取的多变形注释位置不正确的问题/span>
• 修复了提取文本抛出"Invalid/Unknown/Unsupported format"异常的问题
• 修复了不能获取文档中的矩形注释的问题
• 修复了指定区域提取的文本内容不正确的问题
• 修复了填充TextBoxField表单间距不正确的问题

Spire.PDF For Java更新内容

新功能

• 支持PDF签名添加时间戳

  //配置时间戳服务器
  String url = "//freetsa.org/tsr";
  signature.configureTimestamp(url);

• 支持设置在PDF页面上显示/不显示签名信息

  signature.addShowConfigureText(SignatureConfigureText.Contact_Info);//显示Contact_Info（默认显示所有）
  signature.removeShowConfigureText(SignatureConfigureText.Contact_Info);//不显示Contact_Info
  signature.setShowConfigureText(EnumSet.of(SignatureConfigureText.Contact_Info));//只显示Contact_Info

• 支持创建箭头、云朵、椭圆、矩形和连接线条形状的标记

  PdfDocument pdf = new PdfDocument();
  PdfPageBase page = pdf.getPages().add();
  
  //箭头
  String text1 = "this is Arrow annotation";
  PdfFont font = new PdfFont(PdfFontFamily.Helvetica, 20);
  PdfSolidBrush brush1 = new PdfSolidBrush(new PdfRGBColor(Color.blue));
  PdfStringFormat leftAlignment = new PdfStringFormat(PdfTextAlignment.Left, PdfVerticalAlignment.Middle);
  page.getCanvas().drawString(text1, font, brush1, 50, 50, leftAlignment);
  Dimension2D dimension = font.measureString(text1);
  Rectangle2D.Float bounds = new Rectangle2D.Float(50, 50, (float) dimension.getWidth(), (float) dimension.getHeight());
  int[] linePoints = new int[]{92, (int) (page.getSize().getHeight() - bounds.getY() - 60),
          (int) (92 + bounds.getWidth()), (int) (page.getSize().getHeight() - bounds.getY() - 60)};
  PdfLineAnnotation annotation1 = new PdfLineAnnotation(linePoints, "LineArrow annotation test");
  annotation1.setBeginLineStyle(PdfLineEndingStyle.OpenArrow);
  annotation1.setEndLineStyle(PdfLineEndingStyle.OpenArrow);
  annotation1.setBackColor(new PdfRGBColor(Color.red));
  annotation1.setCaptionType(PdfLineCaptionType.Inline);
  annotation1.setLineCaption(true);
  ((PdfNewPage) page).getAnnotations().add(annotation1);
  
  //云朵
  String text2 = "this is Cloud annotation";
  PdfBrush brush2 = PdfBrushes.getBlue();
  page.getCanvas().drawString(text2, font, brush2, 50, 200);
  Point2D point2D[] = new Point2D[]{
          new Point2D.Float(30, 200),
          new Point2D.Float(300, 180),
          new Point2D.Float(300, 250),
          new Point2D.Float(30, 220),
          new Point2D.Float(30, 200)
  };
  PdfPolygonAnnotation annotation2 = new PdfPolygonAnnotation(page, point2D);
  annotation2.setText("PolygonCloud annotation test");
  annotation2.setAuthor("E-iceblue");
  annotation2.setSubject("test");
  annotation2.setModifiedDate(new Date());
  annotation2.setBorderEffect(PdfBorderEffect.Big_Cloud);
  annotation2.setLocation(new Point2D.Float(190, 230));
  annotation2.setColor(new PdfRGBColor(Color.GRAY));
  ((PdfNewPage) page).getAnnotations().add(annotation2);
  
  //椭圆
  String text3 = "this is Circle annotation";
  PdfBrush brush3 = PdfBrushes.getBlue();
  Dimension2D dimension2D = font.measureString(text3);
  dimension2D.setSize(dimension2D.getWidth() + 35, dimension2D.getHeight() + 20);
  page.getCanvas().drawString(text3, font, brush3, 50, 300);
  Rectangle2D.Float annotationBounds1 = new Rectangle2D.Float();
  annotationBounds1.setFrame(new Point2D.Float(36, (float) 290), dimension2D);
  PdfSquareAndCircleAnnotation annotation3 = new PdfSquareAndCircleAnnotation(annotationBounds1);
  annotation3.setSubType(PdfSquareAndCircleAnnotationType.Circle);
  float[] f1 = {0.5f, 0.5f, 0.5f, 0.5f};
  annotation3.setRectangularDifferenceArray(f1);
  annotation3.setText("Circle annotation test");
  annotation3.setColor(new PdfRGBColor(Color.RED));
  annotation3.setModifiedDate(new Date());
  annotation3.setName("*****");
  LineBorder border1 = new LineBorder();
  border1.setBorderWidth(2);
  annotation3.setLineBorder(border1);
  ((PdfNewPage) page).getAnnotations().add(annotation3);
  
  //矩形
  String text4 = "this is Square annotation";
  PdfBrush brush4 = PdfBrushes.getBlue();
  Dimension2D dimension4 = font.measureString(text4);
  dimension2D.setSize(dimension2D.getWidth() + 80, dimension2D.getHeight() + 20);
  page.getCanvas().drawString(text4, font, brush4, 50, 400);
  Rectangle2D.Float annotationBounds2 = new Rectangle2D.Float();
  annotationBounds2.setFrame(new Point2D.Float(30, (float) 400), dimension4);
  PdfSquareAndCircleAnnotation annotation4 = new PdfSquareAndCircleAnnotation(annotationBounds2);
  annotation4.setSubType(PdfSquareAndCircleAnnotationType.Square);
  float[] f2 = {0.5f, 0.5f, 0.5f, 0.5f};
  annotation4.setRectangularDifferenceArray(f2);
  annotation4.setText("Square annotation test");
  annotation4.setColor(new PdfRGBColor(Color.RED));
  annotation4.setModifiedDate(new Date());
  annotation4.setName("*****");
  LineBorder border2 = new LineBorder();
  border2.setBorderWidth(2);
  annotation4.setLineBorder(border2);
  ((PdfNewPage) page).getAnnotations().add(annotation4);
  
  //连接线
  String text5 = "this is Connected lines annotation";
  PdfBrush brush5 = PdfBrushes.getBlue();
  page.getCanvas().drawString(text5, font, brush5, 50, 465);
  Point2D pointzd[] = new Point2D[]{
          new Point2D.Float(30, 470),
          new Point2D.Float(300, 450),
          new Point2D.Float(300, 520),
          new Point2D.Float(30, 490),
          new Point2D.Float(30, 470)
  };
  PdfPolygonAnnotation annotation5 = new PdfPolygonAnnotation(page, pointzd);
  annotation5.setText("Connected Lines annotation test");
  annotation5.setAuthor("冰蓝");
  annotation5.setSubject("test");
  annotation5.setModifiedDate(new Date());
  annotation5.setBorderEffect(PdfBorderEffect.None);
  annotation5.setLocation(new Point2D.Float(190, 230));
  annotation5.setColor(new PdfRGBColor(Color.GRAY));
  ((PdfNewPage) page).getAnnotations().add(annotation5);
  
  pdf.saveToFile("output/annotation.pdf");

• 新增 optimizingTextLine 和 optimizingGridText参数优化从PDF页面提取表格文本时的文本格式

  for (PdfPageBase page : (Iterable) doc.getPages()) {
      content.append(page.extractText(true,true,true));
  }

Bug修复

• 修复了提取文本时，空格与源文档不一致的问题
• 修复了设置“setCertificated(true)”不生效的问题
• 修复了提取表格文本时，存在多余的空行的问题
• 修复了调用“dispose()”方法后，“File.delete()”方法无法删除文件的问题
• 优化了PDF转换到图片耗时较长的问题