pagination/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.
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* 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 Lite/PDFlib/PDFlib+PDI/PPS 7
* 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_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: 1.2 $");
/* For PDFlib Lite: change "unicode" to "winansi" */
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();
}
}
}
}