🗜️ Compress PDF

Reduce PDF file size with adjustable quality levels

🔒 Your image never leaves your device. All processing happens locally in your browser using pdf-lib with image recompression. No upload, no server, no tracking.

Features

  • Three Compression Levels — Choose light, medium, or aggressive compression to balance file size and quality.
  • Size Comparison — See original vs. compressed file size and the percentage saved.
  • 100% Private — Compression runs entirely in your browser. No upload, no server.
  • Fast Processing — Optimized compression algorithms deliver results in seconds.

How It Works

  1. Upload your PDF — Drop a PDF file you want to compress.
  2. Select compression level — Choose light (best quality), medium (balanced), or aggressive (smallest file).
  3. Download compressed PDF — Review the size savings and download the compressed file.

Use Cases

  • Reduce PDF size for email attachments
  • Optimize PDFs for faster web downloads
  • Save storage space on cloud drives
  • Shrink PDFs for mobile viewing

Frequently Asked Questions

How much can the file size be reduced?

It depends on the content. PDFs with large images can be reduced by 50-80%. Text-heavy PDFs may see 10-30% reduction.

Does compression affect text quality?

No. Text remains sharp and searchable. Compression primarily targets embedded images.

Is there a file size limit?

No hard limit since processing is local. Very large PDFs (100MB+) may take longer depending on your device.

Related Tools

  • 📑 Merge PDF — Merge multiple PDF files into a single document — all in your browser
  • ✂️ Split PDF — Split a PDF into separate files or extract specific pages
  • 📦 Compress Image — Reduce file size without losing quality — all in your browser