egutierrez
faac610745
Extrae al registry funciones del proyecto interno footprint_aurgi: - core (6): slugify_ascii, normalize_for_join, cp_provincia_es, infer_provincia_from_cp, safe_read_csv_fallback, csv_to_parquet_duckdb - geo puras (7): haversine_km, point_in_ring, point_in_polygon, point_in_polygons_bbox, polygon_bbox, extent_with_padding, distance_bucket - geo I/O (4): load_geojson_polygons, load_boundary_gdf, add_basemap_osm, add_basemap_with_timeout - valhalla client (4): valhalla_route, valhalla_isochrone, valhalla_isochrones_async, valhalla_matrix_1_to_n - datascience stats (7): trimmed_mean, geometric_mean, detect_distribution_type, best_central_tendency, summary_stats, kde_density_levels, alpha_shape_concave_hull - datascience fuzzy (3): fuzzy_merge_adaptive (rapidfuzz), words_to_dataset, remove_words_from_column - datascience viz (2): plot_kde_2d, plot_heatmap_log - infra (4): compress_pdf_ghostscript, render_table_page_pdfpages, add_header_logo, osm2pgsql_ingest - pipelines (4): setup_geo_stack_docker, compute_centers_reachability, generate_isochrones_by_zone, count_points_per_zone - types geo (4): LonLat, BBox, IsochroneRequest, Centro Incluye: - apps/footprint_geo_stack/ (PostGIS + Martin + Valhalla via docker-compose) - 131/132 tests pasan (1 skip esperado: osm2pgsql en PATH) - Issue tracker dev/issues/0052-footprint-aurgi-extraction.md - Atribucion uniforme: source_repo internal:footprint_aurgi, source_license internal-aurgi - Build con 9 agentes en paralelo (8 wave 1 + 1 wave 2 pipelines) Tambien commitea trabajo previo no commiteado: aggregate_extraction_results, chunk_with_overlap, clean_pdf_text, merge_entity_aliases, extract_graph_gliner2, extract_relations_mrebel, extract_triples_spacy_es, gliner2/mrebel/marianmt/rebel/spacy_es load_model, parse_rebel_output, translate_es_to_en, issue 0050/0051. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
64 lines
2.0 KiB
Python
64 lines
2.0 KiB
Python
"""Compress a PDF file in-place using Ghostscript."""
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from __future__ import annotations
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import shutil
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import subprocess
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import tempfile
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from pathlib import Path
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def compress_pdf_ghostscript(
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pdf_path: "str | Path",
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quality: str = "screen",
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) -> bool:
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"""Compress a PDF in-place using Ghostscript.
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Runs gs with downsampling (96 dpi color/gray, 200 dpi mono). Replaces the
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original file only when the compressed output is strictly smaller. Returns
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True if the file was replaced, False if gs is not available, the file does
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not exist, compression failed, or the output was not smaller.
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Args:
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pdf_path: Path to the PDF file to compress (modified in-place on success).
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quality: Ghostscript PDFSETTINGS profile. One of "screen", "ebook",
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"printer", "prepress".
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Returns:
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True if the file was compressed and replaced, False otherwise.
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"""
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path = Path(pdf_path)
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gs = shutil.which("gs")
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if not gs or not path.exists():
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return False
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with tempfile.TemporaryDirectory() as tmpdir:
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compressed = Path(tmpdir) / "compressed.pdf"
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cmd = [
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gs,
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"-sDEVICE=pdfwrite",
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"-dCompatibilityLevel=1.4",
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f"-dPDFSETTINGS=/{quality}",
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"-dDownsampleColorImages=true",
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"-dDownsampleGrayImages=true",
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"-dDownsampleMonoImages=true",
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"-dColorImageResolution=96",
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"-dGrayImageResolution=96",
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"-dMonoImageResolution=200",
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"-dNOPAUSE",
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"-dQUIET",
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"-dBATCH",
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f"-sOutputFile={compressed}",
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str(path),
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]
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try:
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subprocess.run(cmd, check=True, capture_output=True)
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except subprocess.CalledProcessError:
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return False
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if compressed.exists() and compressed.stat().st_size < path.stat().st_size:
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import shutil as _sh
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_sh.copy2(str(compressed), str(path))
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return True
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return False
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