[Paint.NET fails to save the PHYS chunk into png files - Ouch]

Bummer.

I had been migrating toward paint.net, but think I will have to switch gears and move to fireworks instead.

[Paint.NET fails to save the PHYS chunk into png files - Ouch]

here is the ifranview example

[Paint.NET fails to save the PHYS chunk into png files - Ouch]

mspaint.exe.... let's please not set the bar so loooooooooow....

Macromedia fireworks, photoshop, and ifranview all save png files with the "phys" block in it.

mspaint.exe and paint.net do not save this block.

Unfortunately, some apps (esp for web rendering) look for it... and some blow up when it isn't there.

Some example png files attached (see the file names for explanation). You can open the files with a hex editor and look for the "phys" tag (only present in the fireworks and ifranview examples -- oops, can't add a 4th example, so no ifranview example on this post).

[Paint.NET fails to save the PHYS chunk into png files - Ouch]

I have been fighting this for.... tooo long.

We have some CMS software that terminates whenever we try to insert a png that was saved with paint.net. We discovered that the Microsoft Photo Editor and ifranview created png files that worked OK, but Paint.net ... trouble.

After extensive research, we believe we found the answer: Paint.NET does not save the image DPI into the PHYS chunk in PNG files.

This section of the PNG file is documented here:

http://www.libpng.org/pub/png/book/chapter11.html (search for "Physical Pixel Dimensions (pHYs)")

Any chance support for this PNG element will be added to Paint.NET ?

Thanks!