pdf_import/rotate_pages

 * Rotate Pages:

 * Rotate the pages of an existing PDF document

 *

 * Import a PDF page and place it in the output document with a different

 * orientation.

 *

 * Required software: PDFlib+PDI/PPS 7

 * Required data: PDF document

 */

package com.pdflib.cookbook.pdflib.pdf_import;

import com.pdflib.pdflib;

import com.pdflib.PDFlibException;

public class rotate_pages

{

    public static void main (String argv[])

    {

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

    String searchpath = "../input";

    String outfile = "rotate_pages.pdf";

    String title = "Rotate Pages";

    pdflib p = null;

    String pdffile = "PDFlib-real-world.pdf";

    int indoc, pageno, endpage, page;

    try {

        p = new pdflib();

        p.set_parameter("SearchPath", searchpath);

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

        p.set_parameter("errorpolicy", "return");

        if (p.begin_document(outfile, "") == -1)

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

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

        p.set_info("Title", title + " $Revision: 1.10 $");

        /* Open the input PDF */

        indoc = p.open_pdi_document(pdffile, "");

        if (indoc == -1)

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

        endpage = (int) p.pcos_get_number(indoc, "/Root/Pages/Count");

        /* Loop over all pages of the input document */

        for (pageno = 1; pageno <= endpage; pageno++)

        {

            page = p.open_pdi_page(indoc, pageno, "");

            if (page == -1)

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

            /* Dummy page size; will be adjusted later */

            p.begin_page_ext(10, 10, "");

            /* Place the imported page on the output page. Adjust the page size

             * automatically to the size of the imported page. Orientate the

             * page to the west; similarly you can orientate it to the east or

             * south, if required.

             */

            p.fit_pdi_page(page, 0, 0, "adjustpage orientate=west");

            p.close_pdi_page(page);

            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();

            }

        }

    }

}