Saves a file using various settings

SaveIncremental.java

/*
 * Copyright Datalogics, Inc. 2015
 */

package pdfjt.cookbook.document;

import com.adobe.internal.io.ByteReader;
import com.adobe.internal.io.ByteWriter;
import com.adobe.internal.io.InputStreamByteReader;
import com.adobe.pdfjt.pdf.document.PDFDocument;
import com.adobe.pdfjt.pdf.document.PDFOpenOptions;
import com.adobe.pdfjt.pdf.document.PDFSaveFullOptions;
import com.adobe.pdfjt.pdf.document.PDFSaveIncrementalOptions;
import com.adobe.pdfjt.pdf.document.PDFSaveOptions;
import com.adobe.pdfjt.pdf.page.PDFPageTree;
import com.adobe.pdfjt.services.manipulations.PMMService;

import java.io.InputStream;
import java.net.URL;
import java.net.URLConnection;
import java.text.DecimalFormat;

import pdfjt.util.SampleFileServices;

/**
 * Saves a file using various settings
 */
public class SaveIncremental {

    private static final String inputPDFURL = "http://dev.datalogics.com/cookbook/document/AcrobatDC_js_api_reference.pdf";
    private static final String outputDir = "cookbook/Document/output/";
    private static final String outputFile1 = "AcrobatDC_js_api_reference_Incremental.pdf";
    private static final String outputFile2 = "AcrobatDC_js_api_reference_Full.pdf";
    private static final String outputFile3 = "AcrobatDC_js_api_reference_FullCompress.pdf";

    private static final DecimalFormat formatter = new DecimalFormat("#,###");

    public static void main(String[] args) throws Exception {
        /*
         * Read in PDF input file
         */
        URLConnection connection = new URL(inputPDFURL).openConnection();
        connection.setRequestProperty("User-Agent", "Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.11 (KHTML, like Gecko) Chrome/23.0.1271.95 Safari/537.11");
        connection.connect();
        InputStream fis = connection.getInputStream();        
        ByteReader byteReader = new InputStreamByteReader(fis);
        PDFDocument pdfDocument = PDFDocument.newInstance(byteReader, PDFOpenOptions.newInstance());
        
        System.out.println("Original File Size:       " + padLeft(formatter.format(pdfDocument.getFileSize()),7));
        
        PMMService pmmService = new PMMService(pdfDocument);
        PDFPageTree pages = pdfDocument.requirePages();
        System.out.println("Deleting " + String.valueOf(pages.getNumPages()-1) + " pages...");
        // Delete from page 10 to the end of the document
        pmmService.deletePages(pages.getPage(10), pages.getNumPages()-10);
        
        String outputFileName1 = outputFile1;
        ByteWriter outputFile1 = SampleFileServices.getRAFByteWriter(outputDir + outputFileName1);
        
        // Save just the incremental changes to the document 
        pdfDocument.save(outputFile1, PDFSaveIncrementalOptions.newInstance());
        
        System.out.println("After Incremental Save:   " + padLeft(formatter.format(pdfDocument.getFileSize()),7));
                
        String outputFileName2 = outputFile2;
        ByteWriter outputFile2 = SampleFileServices.getRAFByteWriter(outputDir + outputFileName2);
        // Save Full with a default set of options
        pdfDocument.save(outputFile2, PDFSaveFullOptions.newInstance());

        System.out.println("After Full Save Default:    " + padLeft(formatter.format(pdfDocument.getFileSize()),7));
        
        String outputFileName3 = outputFile3;
        ByteWriter outputFile3 = SampleFileServices.getRAFByteWriter(outputDir + outputFileName3);
        PDFSaveFullOptions pdfSaveFullOptions = PDFSaveFullOptions.newInstance();
        // Save Full and set the compression to compress everything.
        pdfSaveFullOptions.setObjectCompressionMode(PDFSaveOptions.OBJECT_COMPRESSION_ALL);
        pdfSaveFullOptions.setForceCompress(true);
        pdfDocument.save(outputFile3, pdfSaveFullOptions);

        System.out.println("After Full Save Compress:   " + padLeft(formatter.format(pdfDocument.getFileSize()),7));
        
     }
    
    public static String padLeft(String s, int n) {
        return String.format("%1$" + n + "s", s);  
    }
    

}