Compress PDF

Reduce PDF file size while maintaining acceptable quality using Ghostscript.

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Compression Level

Screen Quality Strongest compression. Best for email/web.

eBook Quality Good balance of size and quality.

Print Quality High quality. Moderate size reduction.

Prepress Quality Minimal compression. Near original quality.

Best results require Ghostscript (server-side binary).
Without Ghostscript, ImageMagick convert or Imagick is used as fallback.
If no external tool is available, only structural cleanup is possible (small savings).
Screen quality gives the smallest file size.
PDFs with many high-resolution images compress most.
Text-only PDFs may not compress significantly.
Always keep a backup of your original PDF.