In fact, it is a good idea to actually always embed these fonts as well. These fonts, excluding ZapfDingbats, are called the Base 13 fonts.įrom Acrobat 4.x onwards, there is no problem embedding the above 14 fonts. Helvetica, Helvetica-Bold, Helvetica-Oblique & Helvetica-BoldOblique.Times-Roman, Times-Bold, Times-Italic & Times-BoldItalic.Courier, Courier-Bold, Courier-Oblique & Courier-BoldOblique.Older versions of Adobe Acrobat (Acrobat 3.x and earlier) will never embed the following 14 fonts in a PDF file: Fonts that are not necessarily included in PDF files Distiller only needs the printer fonts, it does not need the screen fonts. In the font locations menu, the user can define several folders that have to be searched for fonts that are missing in the PostScript file. Some applications such as Adobe InDesign automatically embed all fonts when pages are exported to PDF.Īcrobat Distiller offers an option to automatically add missing fonts to PostScript files it has to process. Obviously there are other tools that can provide an overview of all fonts, such as for instance the Enfocus PitStop plug-in. The preflight engine in recent versions of Adobe Acrobat Professional is capable of providing a more detailed list of all of the fonts that are used in a PDF.Īn example of one of the entries in the Acrobat 9 font inventory.I do not know if this is still true for newer releases. ![]() Earlier versions would only show the fonts from the active page. Adobe Acrobat and Adobe Reader have a Fonts tab in the Document Properties window (File > Properties).There are several ways in which you can get a list of all of the fonts that are used within a PDF file using Adobe Acrobat Pro or Adobe Reader. A custom encoding can be used by defining a ‘Differences Array’.The following types of encoding are supported by the PDF file format: Each font in a PDF uses a specific type of encoding, either a standard or a custom one. ![]() This refers to the mapping of a character code to a particular glyph (character shape) description. The Multiple Master fonts that are used for this are:Īnother important aspect of font handling is encoding. This way, the document will not be represented exactly as the designer wanted it to, but at least the text won’t reflow. If certain fonts are missing from the PDF file, Adobe Acrobat, and Adobe Reader will automatically try to emulate the missing font by using one of the Multiple Master fonts that are built into these programs. Only a few type foundries actually release fonts with such severe restrictions, but they do exist. Applications that properly honor the licensing policy of such a font will not embed it in a PDF. In TrueType and OpenType fonts, they can add this restriction in the font data. Keep in mind that font foundries can forbid font embedding for certain typefaces through their end-user license agreement. For subsetted fonts, the font name is preceded by 6 random characters and a plus sign. This means that PDF files with subsetted fonts are smaller than PDF files with embedded fonts. If the “$” character doesn’t appear anywhere in the text, that character is not included in the font.
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