Peter Steinberger, the creator of Clawdbot, is not a first-time founder riding the latest AI wave. According to the source material, the Austrian engineer launched the document software project PSPDFKit in 2011, then sold most of his stake in October 2021 for about €100 million. After several years away from startup life, he went back to writing code full time and re-entered the market through AI.
From iOS engineer to document software founder
Steinberger studied computer and information science at Vienna University of Technology. While still a student, he was already active in iOS development, providing consulting and one-on-one training for several projects and helping his university launch its first Mac/iOS development course. In 2010, he built an iOS PDF-based magazine app for a client in just eight weeks. That project became the seed for PSPDFKit.
He formally started PSPDFKit in 2011 as a solo project. The business focused on SDK and API tools for enterprise PDF and document workflows. Steinberger quickly put up a website, began selling licenses, and recorded several sales in the first week. The business generated revenue almost immediately. By the time he actually joined a Silicon Valley programming job he had already accepted, PSPDFKit was bringing in more money than his salary.
A 10-year buildout ended with a 2021 cash-out
A few months later, he returned home, committed fully to PSPDFKit, expanded the team, and brought in two co-founders. Enterprise demand for digital document tools kept growing during that period. Viewing, editing, annotation, e-signatures, and collaboration all required technical depth, and PSPDFKit packaged that infrastructure into subscription products that companies could integrate directly.
By 2021, the source says PSPDFKit had become a de facto standard in document processing, with customers including Apple, Adobe, Lufthansa, Dropbox, and Disney. Its indirect reach extended across 150 countries and nearly 1 billion consumers. In October 2021, Insight Partners announced an investment in PSPDFKit, and Steinberger chose that moment to sell most of his shares for about €100 million.
Retirement did not last
Leaving the company he had spent 13 years building did not bring him much satisfaction. The source describes a period of emptiness after the exit, despite the financial freedom that followed. He spent years away from the company, tried different forms of therapy, and searched for a new sense of purpose. That phase lasted about four years.
The turning point came when he sat down and started coding again. Steinberger concluded that building things from ideas was still the part of life that felt most meaningful to him. In June 2025, he announced his return on his personal blog. His LinkedIn profile listed him as the founder of Amantus Machina, a company focused on next-generation hyper-personalized AI agents.
Clawdbot became his next breakout product
Within about half a year of his return, Clawdbot began gaining wide attention online. The source describes it as an open-source AI assistant that runs 24/7, proactively reports back to users, and can handle tasks such as filling out forms, sending emails, and controlling a browser. The article presents Clawdbot as one of the first AI products in 2026 to achieve broad viral reach.
The arc from PSPDFKit to Clawdbot shows a founder moving from enterprise software in the mobile era to AI agents in a new product cycle. His first company took a decade to build into a major exit. His latest chapter puts him back where he started: writing code and shipping software.