There is a patch for libpng that does add support for APNG. I would recommend that whoever wants to get APNG support into graphics applications picks up this patch and maintains a 'libapng'.
Then, someone could try to create a APNG load and save plug-in for GIMP and other software.
Regardless, from what I understand, Fireworks does something that PNG *does* allow in order to create layer information.
I see this question over and over, is there a solution?
FWIW, exporting to a .psd/etc is not really a solution - not all of us have Fireworks in order to accomplish that particular task, but are consistently asked to work with Fireworks-formatted PNG files.
There are so-called chunks in the PNG format. Some of them are meant to store private data - private as in not usable by other applications. You'll need the specification of the private Fireworks data chunks and someone with the time and skills to create a load and save plug-in.
It is unfortunate that Fireworks keeps the PNG file prefix, this tricks unsuspecting users into believing that PNG does support more features by default.
Also, APNG format
There is a patch for libpng
There is a patch for libpng that does add support for APNG. I would recommend that whoever wants to get APNG support into graphics applications picks up this patch and maintains a 'libapng'.
Then, someone could try to create a APNG load and save plug-in for GIMP and other software.
Multi-layer PNG plugin support?
I know many people see this in fireworks but png nativaly does not support layer.
Joel
-- Linux and opensource Web development
Agencia Consultoria web
Multi-layer PNG plugin support?
There are so-called chunks
There are so-called chunks in the PNG format. Some of them are meant to store private data - private as in not usable by other applications. You'll need the specification of the private Fireworks data chunks and someone with the time and skills to create a load and save plug-in.
It is unfortunate that Fireworks keeps the PNG file prefix, this tricks unsuspecting users into believing that PNG does support more features by default.