使用iText库阅读pdf文件

Question

我是android新手。我计划开发一个PDF查看器。我听说有一个名为iText的图书馆可以开发PDF阅读器。请告诉我如何在Android中使用iText库以及如何使用该库来开发应用程序。

Answer 1

试试这个

public class ReadAndUsePdf { 
    private static String INPUTFILE = "c:/temp/FirstPdf.pdf"; 
    private static String OUTPUTFILE = "c:/temp/ReadPdf.pdf"; 

    public static void main(String[] args) throws DocumentException, 
      IOException { 
     Document document = new Document(); 

     PdfWriter writer = PdfWriter.getInstance(document, 
       new FileOutputStream(OUTPUTFILE)); 
     document.open(); 
     PdfReader reader = new PdfReader(INPUTFILE); 
     int n = reader.getNumberOfPages(); 
     PdfImportedPage page; 
     // Go through all pages 
     for (int i = 1; i <= n; i++) { 
      // Only page number 2 will be included 
      if (i == 2) { 
       page = writer.getImportedPage(reader, i); 
       Image instance = Image.getInstance(page); 
       // here you can show image on your phone 
      } 
     } 
     document.close(); 

    } 

}