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A comment on Show HN: Pdf-rfc3161 – Pure JavaScript library for RFC 3161 PDF timestamps.

Re:Show HN: Pdf-rfc3161 – Pure JavaScript library for RFC 31... by gettalong on Tuesday January 13, 2026 @08:45AM (#46600843)
In case you don't know it: PyHanko provides a full and up-to-date implementation for digital signatures in PDF, including time stamping.

https://github.com/MatthiasValvekens/pyHanko

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Re:Show HN: Pdf-rfc3161 – Pure JavaScript library for RFC 31... by mdn0 on Wednesday January 14, 2026 @02:55AM (#46613462)
Thank you for the reply and for mentioning pyHanko!

Yes, it is in Python and much more powerful/comprehensive.

I personally really prefer Python too, but unfortunately it is too heavy for Cloudflare Workers and similar edge environments (due to the WebAssembly overhead etc). It is survivable, but consumes significantly more resources.

That is exactly why I created this tool - it stays small and lightweight, and definitely would not grow into full signing support.

[ Parent | on HN ]