... Next . 3.0.12 - 3.0.18 only, PHP 4 >= 4.0.0) cpdf_add_annotation -- Adds annotation . void cpdf_add_annotation ( int pdf document, float llx, float lly, float urx, float ury, string title, string content [, int mode]) . The cpdf_add_annotation() adds a note with the lower left corner at ( llx , lly ) and the upper right corner at ( urx , ury ). The optional parameter mode determines the unit length. If it's 0 or omitted the default unit as specified for the page is used. ...