8
4
Can anybody recommend a good method of bulk converting a large amount of PNG-24 files to PNG-8 with as little loss of quality as possible and maintaining transparency?
I've tried ImageMagick but the resulting images weren't quite as crisp quality as I'd like. Using Paint.NET I was able to achieve far better results, but I can't bulk process with this tool as far as I know.
The settings I used with ImageMagick in case there's better options to use:
convert file.png -depth 4 file-output.png
I've also been playing with OptiPNG, but I haven't discovered a was of making sure the output images are PNG-8.
I'll compare this against the results of optipng soon and mark one or the other as the answer depending upon a comparison of results. – Gavin – 2015-12-02T02:03:24.237
1Add
--force --ext .png
to overwrite the original files. – redburn – 2013-08-20T11:31:07.613