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A comment on Show HN: Invoice-o-matic – a free online invoice tool. Parent comment

Re:Show HN: Invoice-o-matic – a free online invoice tool by creatio on Thursday June 13, 2013 @08:51AM (#5873726)
What technology did you use to build it? Or generate the PDF that fast?
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Re:Show HN: Invoice-o-matic – a free online invoice tool by pistoriusp on Thursday June 13, 2013 @08:57AM (#5873758)
It's built on node.js, there's a great command line tool called wkhtmltopdf:

https://github.com/antialize/wkhtmltopdf

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Re:Show HN: Invoice-o-matic – a free online invoice tool by mercurial on Thursday June 13, 2013 @09:10AM (#5873817)
I have an invoicing pipeline in the form of a Python command-line "wizard", which is effectively in interactive form, which then fills a restructured text document, which gets turned into HTML before becoming a PDF via wkhtml2pdf. However, wkhtml2pdf is kind of CPU hungry and not that fast. How did you make that scale?
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