Php Imagick : Pdf are converted into JPG with Very bad quality

Question

I am using Imagick extension in my one of project. This is new for me.

The following is my code.

                $pdfPath = $config['upload_path'] . '/' . $fileName;
                $im = new imagick();
                $im->setResolution(300, 300);
                $im->readImage($pdfPath);
                $im->setImageFormat('jpeg');
                $im->setImageCompression(imagick::COMPRESSION_JPEG); 
                $im->setImageCompressionQuality(100);
                $im->writeImage($config['upload_path'] . '/' . str_replace('pdf', 'jpeg', $fileName));
                $im->clear();
                $im->destroy();

This gives me very poor quality in image. All text are converted into black background. Images are also not showing proper. See below image, which is converted from PDF. Please help me.

Answer 1

You need to put options for the image background color set white. For here I have added options of $im->->flattenImages(); Here you can find out the solutions https://www.binarytides.com/convert-pdf-image-imagemagick-php/

From

$pdfPath = $config['upload_path'] . '/' . $fileName;
$im = new imagick();
$im->setResolution(300, 300);
$im->readImage($pdfPath);
$im->setImageFormat('jpeg');
$im->setImageCompression(imagick::COMPRESSION_JPEG); 
$im->setImageCompressionQuality(100);
$im->writeImage($config['upload_path'] . '/' . str_replace('pdf', 'jpeg', $fileName));
$im->clear();
$im->destroy();

TO

$pdfPath = $config['upload_path'] . '/' . $fileName;
$im = new imagick();
$im->setResolution(300, 300);
$im->readImage($pdfPath);
$im->setImageFormat('jpeg');
$im->setImageCompression(imagick::COMPRESSION_JPEG); 
$im->setImageCompressionQuality(100);
// -flatten option, this is necessary for images with transparency, it will produce white background for transparent regions
$im = $im->flattenImages();
$im->writeImage($config['upload_path'] . '/' . str_replace('pdf', 'jpeg', $fileName));
$im->clear();
$im->destroy();

I am not sure it will be help for you or not.