pdf_open_image_file Reads an image from a file intpdf_open_image_file resourcepdfdoc stringimagetype stringfilename stringstringparam intintparam Open an image file. Supported types are jpeg, tiff, gif, and png. stringparam is either empty, mask, masked, or page. intparam is either 0, the image id of the applied mask, or the page. Parameters stringparam and intparam were optional before PHP 5.