如何裁剪PDF页面

Question

任何人都可以帮助我如何裁剪PDF页面，就像Acrobat专业人员一样？

Answer 1

这snippet可以帮助你：

public static void CropDocument(string file, string oldchar, string repChar) 
{ 
    int pageNumber = 1; 
    PdfReader reader = new PdfReader(file); 
    iTextSharp.text.Rectangle size = new iTextSharp.text.Rectangle(
    Globals.fX, 
    Globals.fY, 
    Globals.fWidth, 
    Globals.fHeight); 
    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(); 
}