CLI
cat foo.png | png-guts --strip-text > foo-normalized.png
png-guts bar.png --strip-text
Library
{PNG_FILE_HEADER, ChunkReader} = require 'png-guts' process.stdout.write PNG_FILE_HEADER reader = new ChunkReader process.openStdin() reader.on 'chunk', (type, raw) -> process.stderr.write "#{type} #{raw.length}\n" process.stdout.write raw