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33 lines
789 B
CoffeeScript
33 lines
789 B
CoffeeScript
###
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PDFImage - embeds images in PDF documents
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By Devon Govett
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###
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fs = require 'fs'
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Data = require './data'
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JPEG = require './image/jpeg'
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PNG = require './image/png'
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class PDFImage
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@open: (src, label) ->
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if Buffer.isBuffer(src)
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data = src
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else
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if src[0..4] is 'data:' and src.indexOf(';base64,') > -1
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base64String = src.split(';base64,')[1]
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data = new Buffer(base64String, 'base64')
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else
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data = fs.readFileSync src
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return unless data
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if data[0] is 0xff and data[1] is 0xd8
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return new JPEG(data, label)
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else if data[0] is 0x89 and data.toString('ascii', 1, 4) is 'PNG'
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return new PNG(data, label)
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else
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throw new Error 'Unknown image format.'
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module.exports = PDFImage |