Free & Fast — No server uploads, no installs, no watermarks.

Compress PDF Files

Select Compression Level:

How to Use This PDF Tool

  1. Select a PDF file using the “Select a PDF file to compress” button.
  2. Choose a Compression Level:
    • Low – Best quality, smallest file size reduction.
    • Medium – Balanced quality and file size (recommended for most documents).
    • High – Maximum compression with more noticeable quality loss (best for scanning-heavy PDFs).
  3. Click the “Compress PDF” button to start compression.
  4. When it’s finished, click the “Download” button to save your smaller PDF.

Video Tutorial

About This Tool

The Compress PDF tool helps you reduce the size of your PDF files quickly and securely — right in your browser. Whether you need to email a large document, upload a form, or just save storage space, this tool makes it easy without compromising your privacy.

Choose from Low, Medium, or High compression settings to balance quality and size. This tool works entirely on your device using modern browser features like WebAssembly — which means your files never leave your computer.

This tool is perfect for reducing the size of large PDF files before emailing them, uploading to online forms, or saving storage space on your device. Whether you're submitting tax documents, job applications, or scanned schoolwork, a smaller file can save time and avoid upload limits. Best of all, everything happens right in your browser—no server uploads, no waiting.