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matthiasvalvekens

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PDF expert & digital signing aficionado. FOSS developer. Mathematician.

Funding Links: https://github.com/sponsors/MatthiasValvekens

GitHub Sponsors Profile

I'm Matthias; a Belgian software developer.
My open source work currently has a strong focus on document signing, especially for PDF documents. Among a number of other projects, I am the main author and maintainer of pyHanko.
The market for document signing is growing, and there are currently various areas where broadly available tooling is lacking:

Comprehensive FOSS digital signing solutions are few and far between, and not all software ecosystems have the tools to build such solutions.
Truly robust signature validation is hard, and few people afford it the attention it deserves.
Signing technologies are also evolving, which comes with its own set of interesting interoperability challenges.

These are the goals I try to contribute to in my projects. That's no small task; it involves

the usual direct time investment to develop and maintain open-source software (as is the case for all FOSS maintainers);
staying on top of current developments in the industry through active participation in relevant standardisation efforts (this is both time-consuming and requires some degree of funding);
having access to testing equipment (subscriptions to remote signing services, hardware devices, computing time, etc.).

These are the main avenues for which I would value additional contributions, since there's a limit to what I can sustainably do at my own expense. Your help is much appreciated!

Featured Works

MatthiasValvekens/pyHanko

pyHanko: sign and stamp PDF files

Language: Python - Stars: 523
MatthiasValvekens/certomancer

Quickly construct, mock & deploy PKI test configurations using simple declarative configuration.

Language: Python - Stars: 27
MatthiasValvekens/certvalidator

Python library for validating X.509 certificates and paths

Language: Python - Stars: 6

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