Question

Given a PDF, how can one get the layout mode of a PDF (or relative width/height) using a PHP lib or linux command line tool?

Using http://www.tecnick.com/public/code/cp_dpage.php?aiocp_dp=tcpdf which can set this variable on new PDFs, but for existing pdfs from adobe.

Thought of converting pdfs to ps, or using gs in some other way – like converting it to an image first, and getting the width and height of that. Is this the best way?

Answer 1

The solution I’m using is to use ghostscript to print the first page to an image, then getting the image dimensions

$cmd = 'gs -dSAFER -dBATCH -dNOPAUSE -dFirstPage=1 -dLastPage=1 -sDEVICE=png16m -r400 -dTextAlphaBits=4 -dGraphicsAlphaBits=4 -sOutputFile="'.$complete_file_path.'/p%d.png" "'.$complete_file_path.'/'.$this->pdffilename.'"';
        $result = $this->proc( $cmd );
        list($width, $height, $type, $attr) = getimagesize($complete_file_path.'/'.$pngfilename);