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pdfa/text_to_pdfa2b

Output text conforming to PDF/A-2b, taking care of color space and font issues.

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<?php
/*
 * Text to PDF/A:
 * Output text conforming to PDF/A-2b, taking care of color space and font
 * issues
 *
 * Required software: PDFlib/PDFlib+PDI/PPS 9
 * Required data: font file
 */
/* This is where the data files are. Adjust as necessary. */
$searchpath = dirname(__FILE__,3)."/input";
$outfile = "";
$title = "Text to PDF/A";

$x = 30; $y = 800;

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");
    $p->set_option("stringformat=utf8");

    /* Output all contents conforming to PDF/A-2b */
    if ($p->begin_document($outfile, "pdfa=PDF/A-2b") == 0)
        throw new Exception("Error: " . $p->get_errmsg());
    
    $p->set_info("Creator", "PDFlib Cookbook");
    $p->set_info("Title", $title);

    /* Use sRGB as output intent since it allows the color spaces CIELab,
     * ICC-based, Grayscale, and RGB
     */
    if( $p->load_iccprofile("sRGB", "usage=outputintent") == 0)
    {
        throw new Exception("Error: " . p.get_errmsg() ."<br/>\n" . 
            "See www.pdflib.com for output intent ICC profiles.");
    }
    
    $p->begin_page_ext(0, 0, "width=a4.width height=a4.height");

    /* Load the font with embedding, since font
     * embedding is required for PDF/A
     */
    $font = $p->load_font("NotoSerif-Regular", "unicode", "embedding");
    if ($font == 0)
        throw new Exception("Error: " . $p->get_errmsg());
    
    $p->setfont($font, 20);
    
    /* We can use RGB text without any further color related options since
     * we already supplied an output intent profile.
     */
    $p->setcolor("fill", "rgb", 0.7, 0.3, 0.3, 0);
  
    $p->fit_textline("Text with an RGB color conforming to PDF/A-2b",
                        $x, $y-=100, "");
  
    /* Similarly, we can use Grayscale text without any further options
     * since we already supplied an output intent profile.
     */
    $p->setcolor("fill", "gray", 0.5, 0, 0, 0);

    $p->fit_textline("Text with a Grayscale color conforming to PDF/A-2b",
                        $x, $y-=100, "");
   
    $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=text_to_pdfa2b.pdf");
    print $buf;

} catch (PDFlibException $e) {
    echo("PDFlib exception occurred:\n" .
        "[" . $e->get_errnum() . "] " . $e->get_apiname() .
        ": " . $e->get_errmsg() . "\n");
    exit(1);
} catch (Exception $e) {
    echo($e->getMessage());
    exit(1);
}
$p = 0;
?>