pdf_open_image Versatile function for images intpdf_open_image resourcePDF-document stringimagetype stringsource stringdata intlength intwidth intheight intcomponents intbpc stringparams Use image data from a variety of data sources. Supported types are jpeg, ccitt, raw. Supported sources are memory, fileref, url. len is only used when type is raw, params is only used when type is ccitt.