PDF Compression Tool

Reduce PDF file size while maintaining quality using Ghostscript.

Select Compression Mode

Drag & drop a PDF file, or click to select.

High-Precision Server-Side Compression via Ghostscript

Optimizes vector features and embedded raster graphics within the PDF using a dedicated server-side Ghostscript engine. Offers two tailored algorithmic presets: "High Compression Mode" built for maximum storage reduction on screens, and "Low Compression Mode" capped at 300dpi to preserve high-fidelity print quality.

Technical Pipeline

  1. Securely transfers the target PDF to an isolated server workspace using asynchronous Fetch API requests.
  2. Ghostscript executes downsampling and font re-embedding based on the selected target mode (printer or screen).
  3. Calculates the precise optimization delta (oldSize vs. newSize) and projects the results on the user interface.
  4. Upon verifying the 2-point consumption via API, provisions a session-validated, secure download stream for the optimized PDF.

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