How can the embedding of images in a PDF file generated with fpdf in PHP impact the printing speed and file size when sent to a printer?

Embedding high-resolution images in a PDF file generated with fpdf in PHP can significantly impact the printing speed and file size when sent to a printer. To address this issue, it is recommended to optimize the images before embedding them in the PDF by resizing them to an appropriate resolution and compressing them to reduce file size without sacrificing quality.

// Example code snippet to optimize images before embedding in a PDF generated with fpdf
// Resize and compress image before embedding
$image = 'path/to/image.jpg';
list($width, $height) = getimagesize($image);
$newWidth = 200; // Set desired width
$newHeight = $height * ($newWidth / $width);
$newImage = imagecreatetruecolor($newWidth, $newHeight);
$source = imagecreatefromjpeg($image);
imagecopyresized($newImage, $source, 0, 0, 0, 0, $newWidth, $newHeight, $width, $height);
imagejpeg($newImage, 'path/to/resized_image.jpg', 75); // Compress image with quality set to 75

// Embed optimized image in PDF
$pdf = new FPDF();
$pdf->AddPage();
$pdf->Image('path/to/resized_image.jpg', 10, 10, 100, 0, 'JPG');
$pdf->Output();