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    png-chunks-encode

    1.0.0 • Public • Published

    png-chunks-encode

    stable

    Return a fresh PNG buffer given a set of PNG chunks. Useful in combination with png-chunks-encode to easily modify or add to the data of a PNG file.

    By adding your own tEXt or zEXt chunks you have a useful alternative to LSB steganography for making "magical" images with "secret" data available for your applications: the data is hardly hidden this way, but you can store as much as you like. If you really wanted to, you could probably get away with sneaking a 300MB 3D model in there without too much trouble 👻

    Usage

    NPM

    buffer = encode(chunks)

    Takes an array of chunks, each with a name and data:

    [
      { name: 'IHDR', data: Uint8Array([...]) },
      { name: 'IDAT', data: Uint8Array([...]) },
      { name: 'IDAT', data: Uint8Array([...]) },
      { name: 'IDAT', data: Uint8Array([...]) },
      { name: 'IDAT', data: Uint8Array([...]) },
      { name: 'IEND', data: Uint8Array([]) }
    ]

    And returns a Uint8Array containing the raw PNG buffer.

    See Also

    License

    MIT, see LICENSE.md for details.

    Install

    npm i png-chunks-encode

    DownloadsWeekly Downloads

    2,545

    Version

    1.0.0

    License

    MIT

    Last publish

    Collaborators

    • hughsk