ExisPdfPythonDemo/examples/09_optimize.py at main · exisllc/ExisPdfPythonDemo · GitHub

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"""
09 - Optimize (compress and reduce file size).

- Default profile: stream compression + dedupe
- Aggressive: also downsample images and strip metadata

Typical reductions: 40-70% on image-heavy PDFs.

Run:
    python examples/09_optimize.py
"""

from _common import (
    header, info, success, ensure_output_dir, get_sample_pdf, init_license,
)

import exis_pdfeditor


def main() -> None:
    init_license()
    header("Demo 09 - Optimize")

    sample = get_sample_pdf()
    out = ensure_output_dir()

    # Default optimization
    info("Default optimization (compress + dedupe)...")
    result = exis_pdfeditor.optimize(
        str(sample),
        str(out / "09-default.pdf"),
    )
    success(
        f"Reduced {result.originalSize:,} -> {result.optimizedSize:,} bytes "
        f"({result.reductionPercent:.1f}% smaller)"
    )
    print(f"      Streams compressed: {result.streamsCompressed}")
    print(f"      Duplicates removed: {result.duplicatesRemoved}")

    # Aggressive: downsample images, strip metadata
    info("Aggressive optimization (downsample images, strip metadata)...")
    aggressive = exis_pdfeditor.optimize(
        str(sample),
        str(out / "09-aggressive.pdf"),
        downsample_images=True,
        max_image_dpi=150,
        remove_metadata=True,
    )
    success(
        f"Reduced {aggressive.originalSize:,} -> {aggressive.optimizedSize:,} bytes "
        f"({aggressive.reductionPercent:.1f}% smaller)"
    )
    print(f"      Images downsampled: {aggressive.imagesDownsampled}")


if __name__ == "__main__":
    main()