Generating barcode

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Hi, in one of our application we need to generate barcode image and put it in pdf document. Does someone have any experience in this functionality and want to share how to do this and what to avoid?
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EDIT: I found out that we had a module kicking around in some demo projects that generates barcodes. It was last updated for Mendix 5.14: download it here.

I see three approaches for this: use either a Java library, a web service, or a custom font to generate a barcode (Thanks Kilian!)

Here's an API

Here's a Java library

Here's a link to the free barcode font

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I have positive experience with free code 39 fonts. This way you don't have to generate anything. Just make sure the correct font it used and it is rendered as a barcode.

You can download one from http://www.free-barcode-font.com/. Note that this will only create code 39 barcodes.

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I always had issues with free fonts or web services and ended up using this one:

http://www.java4less.com/barcodes/barcodes.php?info=BarcodesWebServices_Guide

It's not free, but has worked very well for me.

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I would offload this to the client if possible:

http://lindell.me/JsBarcode/

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