pdf_import/scale_down_imported_pages
Place A4 pages from an imported PDF as A5 pages in the output document.
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/*
* Scale down imported pages:
* Place A4 pages from an imported PDF as A5 pages in the output document
*
* Import the pages of an A4 document and output them unchanged. Then, place
* them in the output document while scaling them down to A5.
*
* 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 scale_down_imported_pages
{
public static void main (String argv[])
{
/* This is where the data files are. Adjust as necessary. */
String searchpath = "../input";
/* By default annotations are also imported. In some cases this
* requires the Noto fonts for creating annotation appearance streams.
* We therefore set the searchpath to also point to the font directory.
*/
String fontpath = "../resource/font";
String outfile = "scale_down_imported_pages.pdf";
String title = "Scale down Imported Pages";
pdflib p = null;
int exitcode = 0;
String pdffile = "pCOS-datasheet.pdf";
int indoc, pageno, endpage, page;
try {
p = new pdflib();
p.set_option("searchpath={" + searchpath + "}");
p.set_option("searchpath={" + fontpath + "}");
/* 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);
/* Open the input PDF having A4 page size */
indoc = p.open_pdi_document(pdffile, "");
if (indoc == -1)
throw new Exception("Error: " + p.get_errmsg());
endpage = (int) p.pcos_get_number(indoc, "length:pages");
/* Loop over all pages of the input document:
* Place the imported page without any scaling
*/
for (pageno = 1; pageno <= endpage; pageno++)
{
page = p.open_pdi_page(indoc, pageno, "");
if (page == -1)
throw new Exception("Error: " + p.get_errmsg());
/* Start an A4 output page (210mm x 297mm) */
p.begin_page_ext(0, 0, "width=a4.width height=a4.height");
/* Place the imported page without any scaling */
p.fit_pdi_page(page, 0, 0, "");
p.end_page_ext("");
p.close_pdi_page(page);
}
/* Loop over all pages of the input document:
* Place the imported page while scaling it down to A5
*/
for (pageno = 1; pageno <= endpage; pageno++)
{
page = p.open_pdi_page(indoc, pageno, "");
if (page == -1)
throw new Exception("Error: " + p.get_errmsg());
/* Start an A5 output page (148mm x 210mm) */
p.begin_page_ext(421, 595, "");
/* Place the imported page while scaling it down to A5 */
p.fit_pdi_page(page, 0, 0, "boxsize={421 595} fitmethod=meet");
p.end_page_ext("");
p.close_pdi_page(page);
}
p.end_document("");
} catch (PDFlibException e) {
System.err.println("PDFlib exception occurred:");
System.err.println("[" + e.get_errnum() + "] " + e.get_apiname()
+ ": " + e.get_errmsg());
exitcode = 1;
} catch (Exception e) {
System.err.println(e);
exitcode = 1;
} finally {
if (p != null) {
p.delete();
}
System.exit(exitcode);
}
}
}