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How to compress a PDF without losing too much quality

A quick guide to shrinking a PDF while keeping it readable.

Compressing a PDF does not mean “breaking” the document. It means removing unnecessary weight: oversized images, duplicate fonts, or print-ready resolution when you only need to email the file.

Which level to choose

  • Recommended: best balance for everyday work.
  • Maximum: ideal if the file will only be viewed on screen.
  • High quality: when detail matters more than size.

Practical tips

1. Always start with the recommended level.
2. If the file is still heavy, try maximum compression.
3. Check a page with photos before you resend the document.

With CompanionPDF the flow is simple: upload, compress, download.