

sproof sign is a digital signature tool that allows to sign documents online. sproof sign makes the collection of digital signatures fast and easy. sproof sign is free to use and offers additional premium plans for small, medium and large companies. With sproof sign you can digitize your signature workflows within minutes and without setting up IT projects. sproof sign is a cloud-based software for signing document electronically and for collecting signatures from others. Digital signatures created with sproof sign are legally-binding and GDPR-compliant. sproof sign is hosted in the EU and supports advanced and qualified digital signatures according to the eIDAS regulation. All premium plans include unlimited qualified digital signatures and unlimited advanced digital signatures. You can sign DOCX and PDF documents online and for free in the basic version. You can upgrade to sproof sign premium at any time with flexible monthly and yearly plans. Premium customers also benefit from automation with an API, the integration of SSO providers, unlimited storage of documents batch signing.


sproof GmbH, headquartered in Salzburg and Vienna, is Europe’s leading specialist for digital signature solutions and identity verification. With a modular platform, sproof combines both processes into one seamless, legally compliant workflow. The mission: to support companies across Europe in fully digitizing their contract and onboarding processes – with maximum trust, eIDAS compliance, strict data protection, and a strong focus on European digital sovereignty. sproof’s flexible, modular product suite – including sproof Sign, sproof Fastlane, sproof Ident, sproof Widget, sproof Validate, and the sproof eID Hub – can be seamlessly integrated into daily business operations as a ready-to-use web application, via API integration, or directly within common office tools.