Code page character-mapping constants.
Values:
| IG_PDF_CODEPAGE_WIN_EAST_EUROPEAN_ROMAN | 1250 | Windows code pages. |
| IG_PDF_CODEPAGE_WIN_CYRILLIC | 1251 | Windows code pages. |
| IG_PDF_CODEPAGE_WIN_GREEK | 1253 | Windows code pages. |
| IG_PDF_CODEPAGE_WIN_TURKISH | 1254 | Windows code pages. |
| IG_PDF_CODEPAGE_WIN_HEBREW | 1255 | Windows code pages. |
| IG_PDF_CODEPAGE_WIN_ARABIC | 1256 | Windows code pages. |
| IG_PDF_CODEPAGE_WIN_BALTIC | 1257 | Windows code pages. |
| IG_PDF_CODEPAGE_MAC_CENTRAL_EUROPEAN | -9994 | Macintosh pseudo code pages. |
| IG_PDF_CODEPAGE_MAC_CROATIAN | -9993 | Macintosh pseudo code pages. |
| IG_PDF_CODEPAGE_MAC_ROMANIAN | -9992 | Macintosh pseudo code pages. |
| IG_PDF_CODEPAGE_MAC_CYRILLIC | -9991 | Macintosh pseudo code pages. |
| IG_PDF_CODEPAGE_MAC_UKRAINIAN | -9990 | Macintosh pseudo code pages. |
| IG_PDF_CODEPAGE_MAC_GREEK | -9989 | Macintosh pseudo code pages. |
| IG_PDF_CODEPAGE_MAC_TURKISH | -9988 | Macintosh pseudo code pages. |
| IG_PDF_CODEPAGE_MAC_HEBREW | -9987 | Macintosh pseudo code pages. |
| IG_PDF_CODEPAGE_MAC_ARABIC | -9986 | Macintosh pseudo code pages. |