Compress PDF

Reduce your PDF file size by optimizing raster images and file structures.

How to use Compress PDF

  1. Select and upload the PDF document you need to shrink to 100KB.
  2. The compression target is automatically pre-configured to 100KB.
  3. Click the 'Compress PDF' button and watch our optimizer shrink your document.
  4. Download the optimized 100KB PDF instantly with preserved text formatting.

Frequently Asked Questions

How do I compress a PDF to under 100KB?
Simply upload your PDF on this page. The target size is pre-set to 100KB. Click 'Compress PDF' and our server will automatically downsample images and optimize font configurations to get the file below 100KB while keeping it readable.
Will I lose file quality when compressing to 100KB?
Compressing to 100KB is optimized to balance size reduction and readability. For extremely small targets like 10KB/20KB, high-resolution raster images will be downscaled, but text vectors and typography remain sharp and clean.
Is this tool secure?
Yes. All uploads are encrypted with SSL/TLS and files are permanently purged from our servers after 24 hours. We never read or store your personal documents.

Related Tools

  • Compress PDF — Standard compression
  • Merge PDF — Combine files
  • Split PDF — Separate pages
  • Organize PDF — Manage pages