Free Compress PDF Online

Reduce PDF file size online with a free PDF compression tool for sharing and storage.

Create a smaller, image-based PDF in your browser. Text may no longer be selectable or searchable, so keep your original file.

How It Works
  • Upload a PDF file (up to 1GB).
  • Compression is performed in your browser for speed and privacy.
  • Download the compressed PDF (e.g., GB to MB, MB to KB).
  • Note: Text-heavy PDFs may not reach 80% reduction due to content type. Large files (>100 MB) require a high-memory device.

About Compress PDF

Reduce PDF size when a file is too large for an upload, email or storage limit. Compression may affect image quality depending on the document.

How to use this tool

  1. Upload a PDF supported by the tool.
  2. Choose the available compression options.
  3. Download the compressed PDF and check readability before sharing it.

Frequently asked questions

Compression can affect image quality or other document characteristics. Check the output before using it.

A smaller file can be easier to upload, email and store.