Question

如何使用iTextsharp获取pdf的页面大小？我正在使用Pdf阅读器获取PDF的页数。请提供用于计算pdf大小的代码

提前谢谢

Answer 1

查看与来自webified iTextSharp example的PageInformation.cs PageInformation.java对应的chapter 6 iText in Action — 2nd Edition，{{3}}使用iTextSharp输出有关文档的多位信息。中心方法是：

public static void Inspect(StringBuilder sb, byte[] pdf, string fileName) {
  PdfReader reader = new PdfReader(pdf);
  sb.Append(fileName);
  sb.Append(Environment.NewLine);
  sb.Append("Number of pages: ");
  sb.Append(reader.NumberOfPages);
  sb.Append(Environment.NewLine);
  Rectangle mediabox = reader.GetPageSize(1);
  sb.Append("Size of page 1: [");
  sb.Append(mediabox.Left);
  sb.Append(',');
  sb.Append(mediabox.Bottom);
  sb.Append(',');
  sb.Append(mediabox.Right);
  sb.Append(',');
  sb.Append(mediabox.Top);
  sb.Append("]");
  sb.Append(Environment.NewLine);
  sb.Append("Rotation of page 1: ");
  sb.Append(reader.GetPageRotation(1));
  sb.Append(Environment.NewLine);
  sb.Append("Page size with rotation of page 1: ");
  sb.Append(reader.GetPageSizeWithRotation(1));
  sb.Append(Environment.NewLine);
  sb.Append("Is rebuilt? ");
  sb.Append(reader.IsRebuilt().ToString());
  sb.Append(Environment.NewLine);
  sb.Append("Is encrypted? ");
  sb.Append(reader.IsEncrypted().ToString());
  sb.Append(Environment.NewLine);
  sb.Append(Environment.NewLine);
}

使用itextsharp的pdf的高度

1 个答案: