recreate project

vendor/mike42/escpos-php/example/print-from-pdf.php

@@ -0,0 +1,78 @@
+<?php
+require __DIR__ . '/../vendor/autoload.php';
+use Mike42\Escpos\Printer;
+use Mike42\Escpos\ImagickEscposImage;
+use Mike42\Escpos\PrintConnectors\FilePrintConnector;
+
+/*
+ * This is three examples in one:
+ *  1: Print an entire PDF, normal quality.
+ *  2: Print at a lower quality for speed increase (CPU & transfer)
+ *  3: Cache rendered documents for a speed increase (removes CPU image processing completely on subsequent prints)
+ */
+
+/* 1: Print an entire PDF, start-to-finish (shorter form of the example) */
+$pdf = 'resources/document.pdf';
+$connector = new FilePrintConnector("php://stdout");
+$printer = new Printer($connector);
+try {
+    $pages = ImagickEscposImage::loadPdf($pdf);
+    foreach ($pages as $page) {
+        $printer -> graphics($page);
+    }
+    $printer -> cut();
+} catch (Exception $e) {
+    /*
+	 * loadPdf() throws exceptions if files or not found, or you don't have the
+	 * imagick extension to read PDF's
+	 */
+    echo $e -> getMessage() . "\n";
+} finally {
+    $printer -> close();
+}
+
+
+/*
+ * 2: Speed up printing by roughly halving the resolution, and printing double-size.
+ * This gives a 75% speed increase at the expense of some quality.
+ * 
+ * Reduce the page width further if necessary: if it extends past the printing area, your prints will be very slow.
+ */
+$connector = new FilePrintConnector("php://stdout");
+$printer = new Printer($connector);
+$pdf = 'resources/document.pdf';
+$pages = ImagickEscposImage::loadPdf($pdf, 260);
+foreach ($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)));
+}