v0.12.0

0.12.0 (2026-04-14)

Features

• pdf: parallel page rendering with rayon (#148) (ae79a7c)
• wasm: progressive IW44 render API (#150) (35d3a30)

Bug Fixes

• ocr: resolve all clippy errors in ocr_neural, ocr_onnx, ocr_tesseract (65a0cee)
• update tesseract API and optimize JB2 inner loop (f64d884)

Performance Improvements

• allow 1.5× upscale in IW44 subsample selection for faster downscaled renders (8f0baa2)
• downsampled mask pyramid for composite — 8 ms vs 23 ms for 150 dpi renders (1374f27)
• eliminate bounds checks in JB2 hot loops and ZP renormalize (7e94000)
• jb2: close performance gap vs DjVuLibre + CLI improvements (#159) (3efc430)
• jb2: local-copy ZP state for register-allocation + hardware CLZ (0590d3c)
• partial BG44 chunk decode for sub=4 renders — skip high-frequency refinement (b371e4e)
• pdf: output_dpi option + bilevel fast path — 2× faster export (cfccbc6), closes #147
• replace bg_subsample division with shift in composite hot path (0e0f2a3)
• replace mask division with bit-shift in composite hot path (e4b7982)
• use chunks_exact_mut in composite loops — eliminate per-pixel bounds checks (0176860)