They are internal system placeholders or aliases generated by PDF creation software (like Adobe Acrobat, InDesign, or Microsoft Word).

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To save space and processing power, the PDF generator renames the fonts used in the document to temporary tags (Font 1, Font 2, Font 3, etc.).

are a specialized architecture developed by Adobe. They are designed to handle languages with massive character sets, particularly East Asian languages like Chinese, Japanese, and Korean (CJK).

To help you get this sorted out right away, what are you experiencing with these fonts? Are you seeing error messages while printing , or is the text displaying as garbled characters on your screen?