nl_tokens: Image functionality ported from pdf . js
pl_tokens: function putXObjectsDictCallback ( ) { var <mask> = this . internal . collections [ namespace + 'images' ] , out = this . internal . write , image ; for ( var i in images ) { image = images [ i ] ; out ( '/I' + image [ 'i' ] , image [ 'n' ] , '0' , 'R' ) ; } }