PDF Compress Tool

The tool provides a web-based PDF compression service that accepts a PDF file as input and returns a smaller, download-ready PDF. Conceptually, it applies selective image downsampling, re-encoding with JPEG/JPX at set quality levels, and font subset techniques to reduce data without altering visible content. It preserves layout and text appearance for common documents such as reports, invoices, and e-books. Core features include: input of a single PDF file or batch queue in advanced mode, compression presets (low, medium, high, auto) with estimates of resulting size, preservation options for embedded fonts and metadata, and output download. Use cases include sending large proposals, sharing student submissions, or archiving documents with tighter storage quotas. The unique value lies in predictable quality control and optional batch processing, which helps teams meet email size limits and cloud storage quotas without manual re-export. The system also provides post-compression statistics such as new size and approximate quality indicators to support decision making. Industry-standard practices ensure compatibility with common readers and naming conventions, while avoiding content alteration beyond compression.