Why the PDF Is Secretly the World's Most Important File FormatA version of this post originally appeared on Tedium, a twice-weekly newsletter that hunts for the end of the long tail. The Portable Document Format, or PDF, is everywhere. But it's still a format that causes headaches for the average person. Just take former Trump campaign manager Paul Manafort, who may not be the average person, but who runs into issues with the PDF just like the best of us. Ju
