NET PDF component suite to create, edit, view, print, Multi-format document-processing component suite for. The following screenshot shows text drawn on a PDF page using different Font+Encoding combinations. Thus, there are totally twenty six (26) Font+Encoding combinations supported in PDF. Type 2 CIDFont (glyph descriptions based on the TrueType glyph technology) (2) Type 0 CIDFont (glyph descriptions based on CFF) (2) Type3 (glyph descriptions are defined by streams of PDF graphics operators) (1) OpenType (Extension of TrueType font) (3) WinAnsiEncoding, MacRomanEncoding, and built-in encoding Multiple master (Extension of Type1 font) (5) WinAnsiEncoding, MacRomanEncoding, MacExpertEncoding, StandardEncoding, and built-in encoding Supported Encoding standard types by the Font standard Font standard types (number of supported encodings) The following table lists the possible/supported Encoding standard types for each Font standard supported in PDF. Type1, CFF, Multiple master, TrueType, OpenType, Type3, Type 0 CIDFont, and Type 2 CIDFont.įont+Encoding combinations possible for representation of text content in PDF There are 8 font standards supported by the PDF format: Typefaces are developed using various outline font standards such as Type1, TrueType, etc. For instance, the typeface Arial may include the fonts Arial Regular, Arial Bold, Arial Italic, etc. Each font of a typeface has a specific weight, style, condensation, width, slant, italicization, and many other characteristics. A typeface (also known as font family) is a set of one or more fonts each composed of glyphs (representation of a readable character) that share common design features. Font and TypefaceĪ font is a collection of characters with a similar design. Note: Built-in type is not the name of the encoding but it specifies that the encoding is built into the font. WinAnsi, MacRoman, MacExpert, Standard encoding, PDFDocEncoding, Built-in, Identity-(H/V), and CJK encoding. The character encoding types supported by PDF format are For instance, WinAnsi encoding standard translates the numeric decimal value 174 into ® (registered) character whereas, MacRoman encoding standard translates the same numeric decimal value 174 into Æ (AE) character. Encoding StandardĪ character encoding standard specifies how to translate the numeric value of the characters in a text into visible characters. In order to represent a text element on a page a font is required along with a specified character encoding standard. PDF is a fixed document format and also one of the Page Description Languages that describes how the elements on a page, such as text, shapes/line-art, image, etc., should be represented so that they look the same regardless of the software, hardware, or operating system they are being viewed on.
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May 2023
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