PNG

    ChemAxon products are able to export PNG image files. The PngExport module recognizes the common image export options, and the following special options:

    Codename Explanation
    b... 1 - Black and white colors defined with a palette, image data contains 1 bit/pixel
    2 - Black, white, light, and dark gray colors defined with a palette, image data contains 2 bits/pixel
    4 - 16 base colors defined with a palette, image data contains 2 bits/pixel
    8 - 256 colors defined with a palette, image data contains 2 bits/pixel
    24 - image data contains 3*8 bits/pixel RGB colors, without palette.
    32 - image data contains 3*8 bits/pixel RGB colors, and 8 bits/pixel alpha channel, without palette.
    nosource Omits saving of molecule source into image as comment.
    Z... Deprecated. Images are being exported with maximum compression level.

    Examples

    Code Explanations
    png Default settings: 200x200 pixels, white background (or black in 3D), maximum compression.
    png:w100,b32,#ffffff00 100x100 PNG with yellow background, alpha channel is encoded.

    Reference

    PNG Home Site PngExport uses the default Javax ImageIO package to export PNG images.