iTextSharp刪除行

Question

如何使用iTextSharp從pdf文件中刪除「行」形狀？

我嘗試：

var shape = page.GetAsStream(PdfName.LINE); //return null 

var resources = PdfReader.GetPdfObject(page.Get(PdfName.RESOURCES)) as PdfDictionary; //return dictonary 
var resShape = resources.GetAsStream(PdfName.LINE); //return null 

PdfReader.KillIndirect(shape); 
PdfReader.KillIndirect(resShape); 

我做什麼了？

Thx！

Answer 1

事情是這樣的：

PdfDictionary pg = reader.GetPageN(1); 
     PdfArray annotsArray = pg.GetAsArray(PdfName.ANNOTS); 
     if (annotsArray != null) 
     { 
      for (int k = 0; k < annotsArray.Size; k++) 
      { 
       PdfDictionary annot = (PdfDictionary) PdfReader.GetPdfObject(annotsArray[k]); 
       if(annot.GetAsName(PdfName.SUBTYPE).ToString() =="/Line") 
       { 
        annotsArray.Remove(k); 
       } 
      } 
     }