This encoding quirk is the primary reason for the font's "ghost" status in modern software. For example, in 2016, a bug was filed with the open-source PDF rendering library Poppler . The developers discovered that when a PDF tried to call the SymbolMT font, "the wrong glyphs were drawn." To fix this, they had to manually add programming code to create an alias, instructing the software, "Hey, when you see SymbolMT , treat it like the standard Symbol font."
: It is classified as a "Symbol" or "Pi" font. It does not contain traditional alphanumeric characters in the Latin sense; instead, it uses the standard ASCII positions to house non-Latin glyphs. Symbolmt-normal Font
| Font | Purpose | Relation | | --- | --- | --- | | | Legacy Apple/Windows symbol font (pre-2000s) | Predecessor, different encoding | | MT Extra | Supplementary symbols for MathType | Companion, not a replacement | | Cambria Math | Modern Unicode math font (Windows Vista+) | Successor, preferred today | | Symbolmt-normal (bold) | Bold variant | Simple weight variant | This encoding quirk is the primary reason for
Older scientific papers, PDFs, and CAD drawings created in the 1990s and 2000s heavily rely on Symbolmt-normal. When converting these files to modern formats, the rendering engine looks specifically for this font file. 2. Math Equation Editors It does not contain traditional alphanumeric characters in