Fonts are the essential elements of any portable document format (PDF) file, but are often taken for granted by most readers. But what if you are a developer and fonts are missing? What should you do? Why does this happen? In the first of a two-part white paper series, explore some of the core PDF concepts, font technologies, and get an introduction to the problem of missing fonts in PDF documents.
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1991 as the Camelot Project, by Adobe’s co-founder Dr. John Warnock. Inspired by the device independence of PostScript, Dr. Warnock wanted to develop a technology that could accurately display and print electronic documents across different operating systems, hardware, or applications. His answer was the PDF. Unlike its predecessor (i.e., PostScript), PDF was first and foremost a file format and not a programming language. Although PDF evolved from PostScript, the primary difference is that PostScript