PDF417 decoder for python

Question

I've looked everywhere and I've only found information related to generating PDF417 codes, but nothing regarding how to decode them. Is there a library to decode them in python? I'm already detecting the code in an image and croping it, but now I need a decoder.

I don't think there is anything decent in python / yet but https://www.silverbaytech.com/files/pdf417/pdf_api.pdf is a good starting point and the GPL2 C code at https://github.com/estebandelaf/pdf417decode looks promising — jtlz2, Sep 28 '18 at 09:07

score 4 · Accepted Answer · answered Nov 08 '17 at 17:00

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I found this little piece of code, which does just what I want. It decodes PDF417 barcodes. Doesn't seem to be that robust though, so I'll guess I'll have to give the images some strong processing to extract only the barcode.

answered Nov 08 '17 at 17:00

Christian Rodriguez

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score 2 · Answer 2 · answered Apr 05 '21 at 20:33

There are two libraries that I know of for decoding PDF417 barcodes.

You can checkout python-zxing which is a python wrapper for the ZXing decoder or you can use pdf417decoder which is a native Python port of a C# PDF417 decoder library.

ZXing requires files to be saved to the disk first while pdf417decoder can take a PIL Image object directly.

PDF417 decoder for python

2 Answers2