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interchange/embed_xmp

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/* $Id: embed_xmp.java,v 1.4 2013/01/15 10:12:00 stm Exp $

 * Embed XMP:

 * Embed custom XMP metadata in a document

 *

 * Use the "metadata" option of begin_document() to read XMP metadata from an

 * XMP file and embed it in the output document.

 *

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

 * Required data: XMP file

 */

package com.pdflib.cookbook.pdflib.interchange;


import com.pdflib.pdflib;

import com.pdflib.PDFlibException;


public class embed_xmp

{

    public static void main (String argv[])

    {

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

    String searchpath = "../input";

    String outfile = "embed_xmp.pdf";

    String title = "Embed XMP";


    pdflib p = null;

    String xmpfile = "simple.xmp";

    int font;


    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");

       

        /* Start the document with an XMP file supplied, containing a few

         * commonly used XMP properties. The XMP metadata will be read from the

         * file and embedded in the document. PDFlib will merge several

         * internally generated entries into the user-supplied XMP, e.g.

         * xmp:CreateDate.

         */

        if (p.begin_document(outfile,

            "metadata={filename={" + xmpfile + "}}") == -1)

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

       

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

        p.set_info("Title", title + " $Revision: 1.4 $");

       

        font = p.load_font("Helvetica", "unicode", "");

        if (font == -1)

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


        /* Start page */

        p.begin_page_ext(0, 0, "width=a4.width height=a4.height");

       

        p.setfont(font, 12);

       

        p.fit_textline("XMP metadata is read from an XMP file and embedded " +

            "in the document.", 20, 600, "");

       

        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");

        } catch (Exception e) {

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

        } finally {

            if (p != null) {

                p.delete();

            }

        }

    }

}