About Compress PDF Online Free — Reduce PDF File Size

Compress PDF files online for free. Works by converting pages to compressed JPEG images — ideal for scanned PDFs. No registration.

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✨ Key Features of Our Compress PDF Online Free — Reduce PDF File Size

  • ✓3 quality presets + custom
  • ✓JPEG quality slider (10–95%)
  • ✓72–300 DPI resolution
  • ✓Before/after size comparison
  • ✓Processing log per page
  • ✓Instant browser-side compression

📖 How to Use Compress PDF Online Free — Reduce PDF File Size

1

Upload PDF

Drop the PDF you want to compress.

2

Choose Quality

Select a preset or set custom JPEG quality and DPI.

3

Compress

Click Compress PDF and watch the progress log.

4

Download

The compressed PDF downloads automatically.

❓ Frequently Asked Questions

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