color/colorAll_for_cropmarks

<?php

/* $Id: colorAll_for_cropmarks.php,v 1.2 2009/05/29 15:21:18 rp Exp $

* Color space for crop marks:

* Create crop marks which will be visible on all color separations, using the

* special color "All".

*

* Create a CMYK document by loading a CMYK image and create the special color

* "All" with make_spotcolor(). Draw some crop marks with standard vector

* graphics and output some info text outside of the actual page area (i.e.

* outside of the CropBox).

* Test in Acrobat 7 or 8:

* Show the MediaBox with Document, Crop Pages, Set to Zero.

* Choose Advanced, (Print Production), Output Preview:

* All elements with color "All" will be visible in all combinations of

* separation previews.

*

* Required software: PDFlib/PDFlib+PDI/PPS 7

* Required data: CMYK image

*/

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

$searchpath = "../input";

$outfile = "";

$title = "Color All for Crop Marks";

$imagefile = "lionel.jpg";

$info = "Lionel watching the big blue lion  Page 1  Wednesday, " .

    "August 01, 2007  8:52 PM";

$pagewidth=842;

$pageheight=595;

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");

    $p->set_parameter("textformat", "utf8");

    if ($p->begin_document($outfile, "") == 0)

        throw new Exception("Error: " . $p->get_errmsg());

    $p->set_info("Creator", "PDFlib Cookbook");

    $p->set_info("Title", $title);

    /* Start the page with a crop box defined with 40 units less than the

     * page size in all directions for placing crop marks and text info

     */

    $p->begin_page_ext($pagewidth, $pageheight, "cropbox={40 40 802 555}");

    /* Load and fit a CMYK image */

    $image = $p->load_image("auto", $imagefile, "");

    if ($image == 0)

        throw new Exception("Error: " . $p->get_errmsg());

    $p->fit_image($image, 0, 0,

        "boxsize={" . $pagewidth . " " . $pageheight . "} position=center");

    /* Create the special color "All" to be used for crop marks

     * and info text which will be visible on all color separations.

     */

    $color = $p->makespotcolor("All");

    $p->setcolor("fillstroke", "spot", $color, 1, 0, 0);

    /* Draw crop marks within the CropBox */

    /* Draw crop marks at the bottom left */

    $p->moveto(0, 20);

    $p->lineto(15, 20);

    $p->moveto(20, 0);

    $p->lineto(20, 15);

    /* Draw crop marks on the top left */

    $p->moveto(0, $pageheight - 20);

    $p->lineto(15, $pageheight - 20);

    $p->moveto(20, $pageheight);

    $p->lineto(20, $pageheight - 15);

    $p->stroke();

    /* Draw crop marks on the top right */

    $p->moveto($pagewidth - 20, $pageheight);

    $p->lineto($pagewidth - 20, $pageheight - 15);

    $p->moveto($pagewidth, $pageheight - 20);

    $p->lineto($pagewidth - 15, $pageheight - 20);

    /* Draw crop marks at the bottom right */

    $p->moveto($pagewidth - 20, 0);

    $p->lineto($pagewidth - 20, 15);

    $p->moveto($pagewidth, 20);

    $p->lineto($pagewidth - 15, 20);

    $p->stroke();

    /* Load the font */

    $font = $p->load_font("Helvetica", "unicode", "");

    if ($font == 0)

        throw new Exception("Error: " . $p->get_errmsg());

    /* Output some info text outside of the CropBox */

    $p->fit_textline($info, 30, 8, "font=" . $font . " fontsize=10");

    $p->end_page_ext("");

    $p->end_document("");

    $buf = $p->get_buffer();

    $len = strlen($buf);

    header("Content-type: application/pdf");

    header("Content-Length: $len");

    header("Content-Disposition: inline; filename=colorAll_for_cropmarks.pdf");

    print $buf;

    } catch (PDFlibException $e) {

        die("PDFlib exception occurred:\n".

            "[" . $e->get_errnum() . "] " . $e->get_apiname() .

            ": " . $e->get_errmsg() . "\n");

    } catch (Exception $e) {

        die($e->getMessage());

    }

$p=0;

?>