color/spot_color

<?php

/* $Id: spot_color.php,v 1.4 2009/07/13 08:14:05 tm Exp $

 * Spot color:

 * Define and use several spot colors

 *

 * Define and use a PANTONE spot color.

 * Define and use a HKS spot color.

 * Define and use a custom spot color based on alternate CMYK values.

 *

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

 * Required data: none

 */

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

$searchpath = "../input";

$outfile = "";

$title = "Spot Color";

$font;

$spot;

$y = 500;

$x = 30;

try {

    $p = new pdflib();

    $p->set_parameter("SearchPath", $searchpath);

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

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

    $p->set_parameter("errorpolicy", "return");

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

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

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

    $p->set_info("Title", $title . ' $Revision: 1.4 $');

   

    /* Load the font */

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

    if ($font == 0)

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

   

    /* Start the page */

    $p->begin_page_ext(0, 0, "width=a4.height height=a4.width");

   

   

    /* ---- Define and use a PANTONE spot color ---- */

   

    /* Define the spot color "PANTONE 281 U" from the builtin color

     * library PANTONE */

    $spot = $p->makespotcolor("PANTONE 281 U");

   

    /* Set the spot color "PANTONE 281 U" with a tint value of 1 (=100%)

     * and output some text */

    $p->setcolor("fill", "spot", $spot, 1.0, 0.0, 0.0);

   

    $p->fit_textline("PANTONE 281 U spot color with a tint value of 100%",

        $x, $y -= 30, "font=" . $font . " fontsize=16");

   

    /* Set the spot color "PANTONE 281 U" with a tint value of 0.5 (=50%)

     * and output some text */

    $p->setcolor("fill", "spot", $spot, 0.5, 0.0, 0.0);

   

    $p->fit_textline("PANTONE 281 U spot color with a tint value of 50%",

        $x, $y -= 30, "font=" . $font . " fontsize=16");

   

   

    /* ---- Define and use a HKS spot color ---- */

   

    /* Define the spot color "HKS 39 E" from the builtin color library

     * HKS */

    $spot = $p->makespotcolor("HKS 39 E");

   

    /* Set the spot color "HKS 39 E" with a tint value of 1 (=100%)

     * and output some text */

    $p->setcolor("fill", "spot", $spot, 1.0, 0, 0);

   

    $p->fit_textline("HKS 39 E spot color with a tint value of 100%",

        $x, $y -= 50, "font=" . $font . " fontsize=16");

   

    /* Set the spot color "HKS 38 E" with a tint value of 0.7 (=70%)

     * and output some text */

    $p->setcolor("fill", "spot", $spot, 0.7, 0, 0);

   

    $p->fit_textline("HKS 39 E spot color with a tint value of 70%",

        $x, $y -= 30, "font=" . $font . " fontsize=16");

   

 

    /* ---- Define and use a custom spot color based on a CMYK ----

     * ---- alternate color                                    ---- */

     

    /* Set a CMYK color used as alternate CMYK color for the spot color */

    $p->setcolor("fill", "cmyk", 0, 0.2, 0.9, 0);

   

    /* Define a custom spot color called "CompanyLogo" with the alternate

     * CMYK values set above

     */

    $spot = $p->makespotcolor("CompanyLogo");

   

    /* Now set the spot color "CompanyLogo" with a tint value of 1 and

     * output some text */

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

    $p->fit_textline("CompanyLogo custom spot color with a tint value of " .

        "100%", $x, $y -= 50, "font=" . $font . " fontsize=16");

    $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=spot_color.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;

?>