Editing Multiple-image Network Graphics (section)

==Technical details==
The structure of MNG files is essentially the same as that of PNG files, differing only in the slightly different signature (<code>8A 4D 4E 47 0D 0A 1A 0A</code> in [[hexadecimal]], where <code>4D 4E 47</code> is ASCII for "MNG" – see [[Portable Network Graphics#File header|Portable Network Graphics: File header]]) and the use of a much greater variety of [[Portable Network Graphics#"Chunks" within the file|chunks]] to support all the animation features that it provides. Images to be used in the animation are stored in the MNG file as encapsulated PNG or [[JPEG Network Graphics|JNG]] images.

Two versions of MNG of reduced complexity are also defined: MNG-LC (low complexity) and MNG-VLC (very low complexity). These allow applications to include some level of MNG support without having to implement the entire MNG specification, just as the [[Scalable Vector Graphics|SVG]] standard offers the "SVG Basic" and "SVG Tiny" subsets.

MNG does not have a registered [[MIME]] media type, but <code>video/x-mng</code> or <code>image/x-mng</code> can be used.
MNG animations may be included in [[HTML]] pages using the <code><embed></code> or <code><object></code> tag.

MNG can either be lossy or lossless, depending whether the frames are encoded in PNG (lossless) or [[JPEG Network Graphics|JNG]] (lossy).