it will work fine with merging whole pdf but when i print specific page from pdf for merging it will print blank page

[simranhmirza786]

$pdf->addPDF('pdf1.pdf', 'all', 'vertical')
->addPDF('pdf2.pdf', 'all', 'vertical')
->addPDF('pdf3.pdf', '1, 3, 4');

[devnuhl]

This should be fixed by #11, once merged. Or you can update the w/h to width/height respectively in that file if you'd prefer not to wait.