引用
itextsharp 5.5.13.2
itextsharp.xtra 5.5.13.2
方法
/// <summary>
/// 截取pdf文件,例如把A4截出指定的A6区域
/// </summary>
/// <param name="file"></param>
/// <param name="oldchar"></param>
/// <param name="repChar"></param>
/// <param name="size"></param>
public void CropDocument(string file, string oldchar, string repChar, iTextSharp.text.Rectangle size)
{
int pageNumber = 1;//第一页
PdfReader reader = new PdfReader(file);
Document document = new Document(size);
PdfWriter writer = PdfWriter.GetInstance(document,
new FileStream(file.Replace(oldchar, repChar),
FileMode.Create, FileAccess.Write));
document.Open();
PdfContentByte cb = writer.DirectContent;
document.NewPage();
PdfImportedPage page = writer.GetImportedPage(reader,
pageNumber);
cb.AddTemplate(page, 0, 0);
document.Close();
}
用法
CropDocument("E:\Desktop\test.pdf","test.pdf","new.pdf",new iTextSharp.text.Rectangle(0,0,100,100));
//Rectangle参数说明
//圆点为页面左下角
//前两个参数x1,y1为区域的开始点
//后两个参数x2,y2为区域的结束点