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Third party software used:

David Knape & Patrick Mineault Bezier curves drawing logic.

Code optimization made using Closure Compiling service:
http://closure-compiler.appspot.com/home

Libraries used for exporting:

    filesaver: https://github.com/eligrey/FileSaver.js/
    https://github.com/eligrey/FileSaver.js/blob/master/LICENSE.md

    blobjs: https://github.com/eligrey/Blob.js/
    https://github.com/eligrey/Blob.js/blob/master/LICENSE.md

    fabricjs: https://github.com/kangax/fabric.js
    https://github.com/kangax/fabric.js/blob/master/LICENSE

    jszip: https://github.com/Stuk/jszip
    https://github.com/Stuk/jszip/blob/master/LICENSE.markdown

    pdfmake: https://github.com/bpampuch/pdfmake
    https://github.com/bpampuch/pdfmake/blob/master/LICENSE

    SheetJS.js: https://github.com/SheetJS/js-xlsx
    https://github.com/SheetJS/js-xlsx/blob/master/LICENSE

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