CMap file

CMap

仕様書

[1] 5014.CMap_CIDFont_Spec.book - 5014.CIDFont_Spec.pdf, 2021-02-18T01:31:12.000Z, 2022-09-27T13:47:42.463Z https://adobe-type-tools.github.io/font-tech-notes/pdfs/5014.CIDFont_Spec.pdf#page=41
[6] Adobe Tech Note #5099 (Developing CMap Resources for CID-Keyed Fonts) - 5099.CMapResources.pdf, 2021-02-18T01:31:12.000Z, 2022-09-29T14:44:04.077Z https://adobe-type-tools.github.io/font-tech-notes/pdfs/5099.CMapResources.pdf

書字方向

書字方向依存グリフ

PDF 写像資源

[2] GitHub - adobe-type-tools/mapping-resources-pdf: Mapping Resources for PDF, 2022-09-29T13:08:30.000Z https://github.com/adobe-type-tools/mapping-resources-pdf

While both types of resources share the same file structure and syntax, they have very different functions. CMap resources unidirectionally map character codes, such as Unicode, to CIDs (Character IDs). Mapping resources for PDF have a variety of functions, such as mapping CIDs to character codes, or mapping character codes to other character codes.

関連

[3] TrueType の cmap と CIDFont の CMap は、似たような用途ですが、技術的にはまったくの別物です。正式な表記は大文字と小文字で区別できますが、俗に cmap, CMAP, CMap と混用されているので、文脈で注意して区別するしかありません。

メモ

[7] GitHub - adobe-type-tools/cmap-resources: CMap Resources, 2022-09-30T07:36:31.000Z https://github.com/adobe-type-tools/cmap-resources/

[5] To UVS, Or Not To UVS, 2020-11-19T06:22:34.000Z, 2022-09-29T13:18:56.409Z https://ccjktype.fonts.adobe.com/2019/05/to-uvs-or-not-to-uvs.html

[8] Use of /CMapVersion to reflect incompatible changes · Issue #14 · adobe-type-tools/cmap-resources · GitHub, 2023-06-29T01:58:02.000Z https://github.com/adobe-type-tools/cmap-resources/issues/14

[9] validating supplement number of predefined CMaps · Issue #77 · pdf-association/pdf-issues · GitHub, 2023-06-29T02:02:08.000Z https://github.com/pdf-association/pdf-issues/issues/77