> PDF is self-contained, and can be read (mostly) reliably on almost any device with the right software Article: "A PDF is a single file that contains all the

> PDF is self-contained, and can be read (mostly) reliably on almost any device with the right software Article: "A PDF is a single file that contains all the images, fonts, and other data needed to render it." This is only true if you are using PDF/A, or have explicitly bundled all of your fonts in some version of the PDF standard. Otherwise, 14 total typefaces must be rendered by the viewer. These 14 are: Times (in regular, italic, bold, and bold italic), Courier (in regular, oblique, bold and bold oblique), Helvetica (in regular, oblique, bold and bold oblique), Symbol, and Zapf Dingbats. The 14 standard typefaces can vary between viewers: https://en.wikipedia.org/wiki/PDF#Text https://en.wikipedia.org/wiki/PDF#Text "...the base fourteen fonts... or suitable substitute fonts with the same metrics, should be available in most PDF readers, but they are not guaranteed to be available in the reader, and may only display correctly if the system has them installed." Depending upon what the viewer bundles, PDFs using these 14 might not render as expected. Below is a deeper discussion from the wiki: https://web.archive.org/web/20110718231502/http://www.planetpdf.com/planetpdf/pdfs/pdf2k/03e/merz_fontaquarium.pdf https://web.archive.org/web/20110718231502/http://www.planet...