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Start work on OutputIntent and better color support in PDFio:

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- Add CGATS001-compatible "micro" ICC profile as a standard CMYK color space
  (this is the default used by several Adobe applications)
- Add `PDFIO_CS_CGATS001` color space enum.
- Extend `pdfioArrayCreateColorFromStandard` to support CMYK.
- Extend `pdfioFileCreateImageObjFromFile` to support CMYK JPEG files.
- Update `pdfioFileCreatePage` to add default grayscale, RGB, and CMYK color
  space resources as needed.
This commit is contained in:
Michael R Sweet
2025-04-13 13:31:19 -04:00
parent 3d9c22aa49
commit acd68df592
9 changed files with 577 additions and 13 deletions
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pdfio-private.h
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@@ -267,7 +267,8 @@ struct _pdfio_file_s // PDF file structure
pdfio_obj_t *info_obj; // Information object
pdfio_obj_t *pages_obj; // Root pages object
pdfio_obj_t *encrypt_obj; // De/Encryption object/dictionary
pdfio_obj_t *cp1252_obj, // CP1252 font encoding object
pdfio_obj_t *cgats001_obj, // CGATS001 ICC profile object
*cp1252_obj, // CP1252 font encoding object
*unicode_obj; // Unicode font encoding object
pdfio_array_t *id_array; // ID array