New on CTAN: spotxcolor
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Munehiro Yamamoto submitted the
spotxcolor
package.
Version number: 0.14 2026-03-12
License type: mit
Summary description: Modern Spot Color support for the xcolor package
Announcement text:
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This package provides robust and modern spot color (e.g., DIC, PANTONE)
support for the `xcolor` package across all major TeX engines (pdfTeX,
LuaTeX, XeTeX, and dvipdfmx).
It resolves the structural PDF syntax issues found in the legacy
`spotcolor` package and provides a more robust, expl3-based architecture
compared to the `colorspace` package.
Key features included in this initial release:
- Native `xcolor` integration: `\textcolor` generates true spot color
separation plates in pdfTeX and LuaTeX without breaking the color stack.
- Safe fallback for dvipdfmx: `\textcolor` safely falls back to a CMYK
representation, avoiding parse errors and black-box outputs.
- Explicit spot color injection: Added the `\SpotColor` macro to force
true spot color output in dvipdfmx and other engines.
- Perfect PDF structure: Safely expands variables and manages PDF objects
to prevent garbage collection issues and broken cross-references.
- Backward compatibility: Seamlessly emulates legacy `spotcolor` macros
(e.g., `\AddSpotColor`, `\NewSpotColorSpace`) to reuse existing color
dictionaries without modification.
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This package is located at
https://mirrors.ctan.org/macros/latex/contrib/spotxcolor
More information is at
https://www.ctan.org/pkg/spotxcolor
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Thanks for the upload.
For the CTAN Team
Erik Braun
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Please join a user group or donate to one, see https://ctan.org/lugs
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