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Free, private image & PDF tools that run in your browser. No uploads, no account, no limits.

Image tools

  • Workshop Editor
  • Compress Image
  • Resize Image
  • Crop Image
  • Rotate Image
  • Remove Background
  • Upscale Image
  • All image tools →

Convert

  • WebP → JPG
  • WebP → PNG
  • JPG → WebP
  • PNG → WebP
  • HEIC → JPG
  • JPG → AVIF
  • GIF → WebP

PDF tools

  • All PDF tools
  • Compress PDF
  • Merge PDF
  • Split PDF
  • Sign PDF
  • Protect PDF

More

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PDF ToolsCompress PDF
PDF Tools
Workshop

Compress PDF

Reduce PDF file size

Drop PDF here

or click to browse • PDF only• Max 100MB

This tool runs entirely in your browser — files are never uploaded to any server.

You might also need

Merge PDF

Split PDF

Protect PDF

PDF to Images

How to use Compress PDF

  1. 1

    Upload your PDF

    Drag and drop your PDF file onto the upload area, or click to browse.

  2. 2

    Choose compression level

    Select Low, Medium, or High compression based on your quality needs.

  3. 3

    Download compressed PDF

    Click Compress, then download your smaller PDF instantly.

Frequently Asked Questions

How much can I reduce a PDF file size?+

Depending on the content, Filezy can reduce PDF size by 30–80%. Image-heavy PDFs compress the most.

Is it safe to compress PDFs online?+

Filezy compresses PDFs entirely in your browser. Your files are never uploaded to any server, so your data stays completely private.

Does compressing a PDF reduce quality?+

Low compression preserves quality while reducing size moderately. High compression reduces size significantly but may affect image clarity. Text remains sharp at all levels.