PDFlib Cookbook

cookbook

pdf_import/clone_page_boxes

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/* $Id: clone_page_boxes.java,v 1.7 2013/01/15 10:12:02 stm Exp $
 * 
 * Clone page boxes:
 * Import a PDF page, and clone all of its ArtBox, TrimBox, BleedBox, CropBox,
 * and MediaBox entries.
 *
 * Note: You can visualize the page boxes in Acrobat 8 as follows:
 * Choose "Edit, Preferences, General, Page Display, Page Content and
 * Information" and select "Show art, trim & bleed boxes".
 * This setting will create colorized rectangles which indicate the size of the
 * art, trim, and bleed boxes.
 * 
 * Required software: PDFlib+PDI/PPS 9
 * Required data: PDF document
 */
package com.pdflib.cookbook.pdflib.pdf_import;

import com.pdflib.pdflib;
import com.pdflib.PDFlibException;

public class clone_page_boxes {
    public static void main(String argv[]) {
        /* This is where the data files are. Adjust as necessary. */
        String searchpath = "../input";
        String outfile = "clone_page_boxes.pdf";
        String title = "Clone Page Boxes";

        pdflib p = null;
        String pdffile = "pageboxes.pdf";
        int indoc, pageno, endpage, page;

        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");

            if (p.begin_document(outfile, "") == -1)
                throw new Exception("Error: " + p.get_apiname() + ": "
                        + p.get_errmsg());

            p.set_info("Creator", "PDFlib Cookbook");
            p.set_info("Title", title + " $Revision: 1.7 $");

            /* Open the input PDF */
            indoc = p.open_pdi_document(pdffile, "");
            if (indoc == -1)
                throw new Exception("Error: " + p.get_apiname() + ": "
                        + p.get_errmsg());

            endpage = (int) p.pcos_get_number(indoc, "length:pages");

            /* Loop over all pages of the input document */
            for (pageno = 1; pageno <= endpage; pageno++) {
                /*
                 * "cloneboxes" must be used with open_pdi_page() to read all
                 * relevant box values.
                 */
                page = p.open_pdi_page(indoc, pageno, "cloneboxes");

                if (page == -1)
                    throw new Exception("Error: " + p.get_apiname() + ": "
                            + p.get_errmsg());

                /*
                 * Start and place the page. "cloneboxes" must be used again as
                 * an option to fit_pdi_page() to apply the box values to the
                 * current page.
                 */
                p.begin_page_ext(0, 0, "");

                p.fit_pdi_page(page, 0, 0, "cloneboxes");

                p.end_page_ext("");

                p.close_pdi_page(page);
            }

            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();
            }
        }
    }
}