# Module Cpdfpng

    module Cpdfpng: sig .. end

Read PNG files

    type t = {

`` | `width : `int`;`
`` | `height : `int`;`
`` | `bitdepth : `int`;`
`` | `colortype : `int`;`
`` | `idat : `Pdfio.bytes`;`

`}`

PNG files, represented only to the extent required to insert as PDF image objects

    val read_png : Pdfio.input -> t

Read a non-interlaced, non-alpha, non-palette PNG for inclusion in a PDF file.