PDF is dead. Long live PDF... with Java!
Devoxx 2014: The Founder's Dilemmas
Digital Signatures: how it's done in PDF
ZUGFeRD: an overview
Digital Signatures in the Cloud: A B2C Case Study
Who's afraid of XFA?
IANAL: what developers should know about IP and Legal
iText 7: PDF is dead, long live PDF
The Future of Invoicing
PDF is dead. Long live PDF!
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FIT Seminar Singapore presentation
Disrupting the document world
ZUGFeRD: The future of invoicing with PDF
Tech Startup Day 2015: 4 failures and 1 hit
Oops, I broke my API
Intellectual property and licensing
Monetizing open-source projects
Start-ups: the tortoise and the hare