loadPdf() public static method

Load a PDF for use on the printer
public static loadPdf ( string $pdfFile, string $pageWidth = 550 ) : multitype:EscposImage
$pdfFile string The file to load
$pageWidth string The width, in pixels, of the printer's output. The first page of the PDF will be scaled to approximately fit in this area.
return multitype:EscposImage
ImagickEscposImage Class Documentation
Beispiel #1
1
foreach ($pages as $page) {
    $printer->graphics($page, Printer::IMG_DOUBLE_HEIGHT | Printer::IMG_DOUBLE_WIDTH);
}
$printer->cut();
$printer->close();
/*
 * 3: PDF printing still too slow? If you regularly print the same files, serialize & compress your
 * EscposImage objects (after printing[1]), instead of throwing them away.
 * 
 * (You can also do this to print logos on computers which don't have an
 * image processing library, by preparing a serialized version of your logo on your PC)
 * 
 * [1]After printing, the pixels are loaded and formatted for the print command you used, so even a raspberry pi can print complex PDF's quickly.
 */
$connector = new FilePrintConnector("php://stdout");
$printer = new Printer($connector);
$pdf = 'resources/document.pdf';
$ser = 'resources/document.z';
if (!file_exists($ser)) {
    $pages = ImagickEscposImage::loadPdf($pdf);
} else {
    $pages = unserialize(gzuncompress(file_get_contents($ser)));
}
foreach ($pages as $page) {
    $printer->graphics($page);
}
$printer->cut();
$printer->close();
if (!file_exists($ser)) {
    file_put_contents($ser, gzcompress(serialize($pages)));
}