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pdfa/images_to_pdfa2b

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/* $Id: images_to_pdfa2b.java,v 1.3 2016/12/21 16:47:49 tm Exp $

 * Images to PDF/A:

 * Convert grayscale, CMYK or RGB image files in TIFF or JPEG formats to

 * PDF/A-2b, taking care of color space issues.

 *

 * Required software: PDFlib/PDFlib+PDI/PPS 9

 * Required data: image files

 */

package com.pdflib.cookbook.pdflib.pdfa;


import com.pdflib.pdflib;

import com.pdflib.PDFlibException;


public class images_to_pdfa2b {

    public static void main(String argv[]) {

        /* This is where the data files are. Adjust as necessary. */

        String searchpath = "../input";

        String outfile = "images_to_pdfa2b.pdf";

        String title = "Images to PDF/A";


        pdflib p = null;

        String imagefileRGB = "nesrin.jpg";

        String imagefileCMYK = "kraxi_header.tif";

        String imagefileGray = "nesrin_gray.jpg";


        int exitcode = 0;

        int image, icc;


        try {

            p = new pdflib();


            p.set_option("searchpath={" + searchpath + "}");


            /* This means we must check return values of load_font() etc. */

            p.set_option("errorpolicy=return");


            /* Output all contents conforming to PDF/A-2b */

            if (p.begin_document(outfile, "pdfa=PDF/A-2b") == -1)

                throw new Exception("Error: " + p.get_errmsg());


            p.set_info("Creator", "PDFlib Cookbook");

            p.set_info("Title", title + " $Revision: 1.3 $");


            /*

             * Use sRGB as output intent since it allows the color spaces

             * ICC-based, grayscale, and RGB. CMYK images must be tagged with a

             * suitable CMYK ICC profile.

             */

            p.load_iccprofile("sRGB", "usage=outputintent");


            /* Load an ICC profile for CMYK images */

            icc = p.load_iccprofile("ISOcoated_v2_eci.icc", "");

            if (icc == -1)

                throw new Exception("Error: " + p.get_errmsg());


            p.begin_page_ext(595, 842, "");


            /*

             * We can use an RGB image without any further options since we

             * supplied an RGB output intent profile.

             */

            image = p.load_image("auto", imagefileRGB, "");

            if (image == -1)

                throw new Exception("Error: " + p.get_errmsg());


            p.fit_image(image, 100, 550, "scale=0.5");

            p.close_image(image);


            /*

             * Similarly, we can use a grayscale image without any further

             * options since we supplied an RGB output intent profile.

             */

            image = p.load_image("auto", imagefileGray, "");

            if (image == -1)

                throw new Exception("Error: " + p.get_errmsg());


            p.fit_image(image, 100, 250, "scale=0.5");

            p.close_image(image);


            /* For CMYK images we explicitly assign a CMYK ICC profile */

            image = p.load_image("auto", imagefileCMYK, "iccprofile=" + icc);

            if (image == -1)

                throw new Exception("Error: " + p.get_errmsg());


            p.fit_image(image, 100, 80, "");

            p.close_image(image);


            p.end_page_ext("");


            p.end_document("");

        }

        catch (PDFlibException e) {

            System.err.print("PDFlib exception occurred:\n");

            System.err.print("[" + e.get_errnum() + "] " + e.get_apiname()

                    + ": " + e.get_errmsg() + "\n");

            exitcode = 1;

        }

        catch (Exception e) {

            System.err.println(e.getMessage());

            exitcode = 1;

        }

        finally {

            if (p != null) {

                p.delete();

            }

            System.exit(exitcode);

        }

    }

}