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PDF documents are fine—as long as you’re viewing them on large screens. But the thousands of people trying to view official documents or fill out PDF forms on mobile devices are stuck pinching and zooming to try to navigate. Adobe, the company that invented the PDF, knows how frustrating this is, and has an AI-powered solution. Liquid Mode, which is now built into its Acrobat Reader software, uses an algorithm to resize PDFs to fit whatever device you’re reading on, and allows font resizing and search. “Initially we flirted with the idea of an all-new format,” says Phil Ydens, fellow and vice president of Adobe Document Cloud, “but quickly concluded that PDF was too ubiquitous and important. That’s worth solving the right way.”

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