Best way to downsample a ripped version of PDF to PDF

This way requires a bit of linux software Debian / Ubuntu apt-get install ps2pdf apt-get install pdf2ps And then to the magic – lets say that your pdf is located at /home/mypdf.pdf <?php shell_exec(“pdf2ps /home/mypdf.pdf /home/mypdf.ps”); unlink(“/home/mypdf.pdf”); shell_exec(“ps2pdf /home/mypdf.ps /home/mypdf.pdf”); unlink(“/home/mypdf.ps”); ?>