When Adobe introduced the portable document format in 1993, a Gartner consultant dismissed it as "the dumbest idea I've ever heard." The technology faced immediate skepticism as megabyte-sized files crawled over dial-up connections, prompting Adobe's board to consider killing the project. Yet the format found its killer application when the Internal Revenue Service adopted PDFs for tax forms.

PDFs became the default for digital document sharing, with over 2.5 trillion files now circulating globally. The format's triumph came despite early technical limitations and near-cancellation. Adobe's persistence paid off as sharing digital files became essential for business and government operations. The PDF's ubiquity made it the standard for everything from legal documents to academic papers.

Now artificial intelligence threatens to disrupt the PDF's dominance after three decades. As AI systems struggle with PDF's rigid structure, developers are exploring alternatives that offer better machine readability. The format that once conquered the digital world faces an existential challenge from the very technologies it helped enable.