png2iff

How to use

Convert PNG images to Amiga ILBM/IFF format, with optional palette quantization, remapping, dithering, and ByteRun1 compression.

Input Modes

Choose one of the following input modes:

• --input <path> Convert a single PNG file.
• --all <folder> Convert all .png files in a folder.
• --match <pattern> Convert files matching a pattern, such as background*.png.

Palette Options

• --quantize <2-256> Automatically generate a palette with the specified number of colors.
• --remap <palette.pal> Remap the image using a JASC .PAL palette.

If neither --quantize nor --remap is used, and the input file is an indexed PNG, the source palette is preserved.

Output

• --output <path> Set the output ILBM/IFF file path. This option is only available when converting a single input file.

If --output is omitted, the output file is written as <input>.iff.

Dithering

• --dither <type> Select the dithering method.
• --strength <0-100> Set the dithering strength. The default value is 25.

Supported dithering types:

• none
• bayer2
• bayer4
• bayer8
• checks
• hatch
• diagonal
• horizontal
• vertical
• fs
• atkinson
• jjn
• stucki
• burkes
• sierra
• sierra2
• sierraLite

Compression

• --byterun1 <on|off> Enable or disable ILBM ByteRun1 compression. The default is on.

Other Options

• --help Show the help screen.
• --version Show the product name, version, and copyright.

Examples