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feat: Implement graphics state, transparency and affine transforms#20

Merged
ralflang merged 1 commit into
FRAMEWORK_6_0from
feat/graphics-state-transparency
May 23, 2026
Merged

feat: Implement graphics state, transparency and affine transforms#20
ralflang merged 1 commit into
FRAMEWORK_6_0from
feat/graphics-state-transparency

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Summary

  • ExtGState with fill/stroke alpha, blend modes, overprint
  • AffineTransform immutable matrix with factory methods and composition
  • PdfWriter: setAlpha(), setBlendMode(), writeRotated()

Test plan

  • 41 new tests, 426 total, no regressions

Closes #13

Add ExtGState (fill/stroke alpha, blend modes, overprint),
AffineTransform value object, and PdfWriter convenience methods
setAlpha(), setBlendMode(), writeRotated().

Closes #13
@ralflang ralflang merged commit 2169853 into FRAMEWORK_6_0 May 23, 2026
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feat: Graphics state and transparency (ISO 32000-2 §8.4, §11.3) (Block C)

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