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Comment by lionkor | Hacker News Reader

Is it allowed to modify the signature someone puts digitally on a document? Because that's what this does. Is that not an issue?

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That's also what a pen does, but we haven't banned pens. Don't forge signatures, it's illegal.

Stop, you are making too much sense. /s

(I honestly am baffled that things like this have to be said.)

Me too, but alas, they do :(

Have you met Preview's Tools > Annotate > Signature?

If you're concerned about people modifying a document after you share it out, consider using a digital signature or a hash.

I feel like if you're modifying the signature after they sign it and approve it - that could be a problem. As long as the modifications are applied in real-time (or with explicit user confirmation after modification), I think it is morally okay (and probably legally, but I'm not a lawyer).

You may find users who get mad if your settings are too aggressive though, and if they're unable to get a signature that they approve of.

What makes you say the library is modifying the signature? (It’s not)

Given it a bit of thought (as I was also puzzled), I think the comment was about the modification compared to a normal way of doing it. So if I would normally write a scribble with angular lines for a signature, and it might be consistent across different places, this brush could smooth it out and modify what it might be.

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