It seems to be impossible to find a version of OCR-B, the typeface, that actually is reliably monospaced, meaning that 10 characters, regardless of which characters, always take up the exact same space.

[jwildeboer@social.wildeboer.net]

@hook @0x58 my last two blog posts already dive deep into the topic. Including a link to a MRZ (Machine Readable Zone) generator I made: https://jan.wildeboer.net

[hook@toot.si]

@jwildeboer, ah, sweet, thanks!

I guess I really should subscribe (again) to your blog’s RSS/Atom feed.

@0x58

[jwildeboer@social.wildeboer.net]

@hook @0x58 And just for the fun of it, I made MRZ generators for all official travel document sizes:

TD1 (credit card): https://jan.wildeboer.net/assets/TD1MRZ.html

TD2 (A7 size): https://jan.wildeboer.net/assets/TD2MRZ.html

TD3 (B7 size for passports): https://jan.wildeboer.net/assets/TD3MRZ.html