BASKET
Search
PDFlib

pagination/crop_page

Download Java Code         Switch to PHP Code      Show Output PDF

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

 * Crop page:

 * Crop an A4 page to an A5 page

 *

 * Create a page with A4 format and Portrait orientation and crop it to an A5 page.

 * Open the A5 page with the same zoom as chosen for the A4 page to fit completely

 * into the window.

 *

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

 * Required data: image file

 */

package com.pdflib.cookbook.pdflib.pagination;

import com.pdflib.pdflib;

import com.pdflib.PDFlibException;


public class crop_page

{

    public static void main (String argv[])

    {

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

    String searchpath = "../input";

    String outfile = "crop_page.pdf";

    String title = "Crop Page";


    pdflib p = null;

    String optlist;

    int font, action;

 

    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_errmsg());


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

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


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

        if (font == -1)

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

       


        /* ----------------------------------

         * Create the first page in A4 format

         * ----------------------------------

         */

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

       

        /* Draw a violet rectangle in A5 format */

        p.setcolor("fill", "rgb", 0.7, 0, 0.6, 0);

        p.rect(87, 123, 421, 595);

        p.fill();

       

        /* Output some explanatory text */

        p.fit_textline("A4 page uncropped", 50, 50,

            "font=" + font + " fontsize=20  fillcolor={gray 0}");

       

        /* Create a "GoTo" action for opening the current page (page=0) with

         * a zoom to completely fit it into the window (type=fitwindow)

         */

        optlist = "destination={page=0 type=fitwindow}";

        action = p.create_action("GoTo", optlist);

       

        /* Finish the page with the "GoTo" action being applied. When the page

         * is opened in the viewer it will completely fit into the window.

         */

        p.end_page_ext("action={open=" + action + "}");

       

       

        /* -------------------------------------------------------------

        /* Create the second page in A4 format and crop it to an A5 page

         * -------------------------------------------------------------

         */

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

       

        /* Draw a violet rectangle in A5 format */

        p.setcolor("fill", "rgb", 0.7, 0, 0.6, 0);

        p.rect(87, 123, 421, 595);

        p.fill();

       

        /* Output some explanatory text */

        p.fit_textline("A4 page cropped to A5", 95, 140,

            "font=" + font + " fontsize=20 fillcolor={gray 0}");

       

        /* Create a "GoTo" action for opening the current page with the same

         * zoom as chosen for the A4 page. This is accomplished by supplying

         * the size of the A4 page as the rectangle to completely fit into

         * the window.

         */

        optlist = "destination={page=0 type=fitrect left=0 bottom=0 " +

            "right=595 top=842}";

        action = p.create_action("GoTo", optlist);

       

        /* Finish the page and crop it to the A5 format. In addition, the

         * "GoTo" action is applied. When the page is opened in the viewer it

         * will be displayed with the same zoom as the A4 page.

         */

        p.end_page_ext("cropbox={87 123 508 718} action={open=" + action + "}");

       

        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();

            }

        }

    }

}