Java USES pdfbox to manipulate PDF file samples

There is also a project for creating PDF files, iText.

There are two subprojects under PDFBox: FontBox is a Java class library that handles PDF fonts; JempBox is a Java class library that handles XMP metadata.

A simple example:

To introduce the package pdfbox-app-1.6.0.jar.

package pdf;
import java.io.File;
import java.net.MalformedURLException;
import org.apache.pdfbox.pdmodel.PDDocument;
import org.apache.pdfbox.util.PDFTextStripper;
public class StripPDFContent {
    public static String getText(File file)throws Exception{
        boolean sort=false;
        int startPage=1;
        int endPage=10;
        PDDocument document=null;
        try{
            try{
                document=PDDocument.load(file);
            }catch(MalformedURLException e){

            }
            PDFTextStripper stripper=new PDFTextStripper();
            stripper.setSortByPosition(sort);
            stripper.setStartPage(startPage);
            stripper.setEndPage(endPage);
            return stripper.getText(document);
        }catch(Exception e){
            e.printStackTrace();
            return "";
        }finally{
            if(document!=null){
                document.close();
            }
        }
    }

    public static void main(String[] args){
        File file=new File("/home/orisun/123.pdf");
        try{
            String cont=getText(file);
            System.out.println(cont);
        }catch(Exception e){
            System.out.println("Strip failed.");
            e.printStackTrace();
        }
    }
}