PDF Compressor

This tool analyzes the PDF content to identify optimal compression opportunities without altering essential information. It handles single documents and supports batch processing for large collections. The workflow focuses on preserving readability and layout while minimizing file size, making it suitable for professionals who share large reports, legal filings, manuals, or scans.
Compression logic combines image downsampling, color subsampling, font subsetting, and object reorganization. It offers lossy modes that yield higher reductions and lossless or near-lossless options for critical pages. The system records original and resulting file sizes, savings percentage, and a basic quality indicator to help users decide on an acceptable balance between size and fidelity.
Inputs are validated to ensure PDFs remain valid after processing. If a file is corrupted or password-protected, processing is rejected with a precise error; extremely large inputs may be chunked to avoid resource issues. Batch jobs can be retried or split automatically on failure, preserving previously completed outputs.
Common use cases include preparing documents for email transmission, submission portals with size limits, and archiving that requires reduced storage. The tool respects region-specific character encoding, page sizes, and color spaces where possible. Outputs include the compressed document plus a report of size changes, suitable for audit trails and compliance.