Compress PDF Online — Free PDF File Size Reducer

Make your PDF smaller — without losing clarity. Perfect for email attachments, school uploads, government portals, and everyday sharing. Choose the size you need, including exact-size mode for strict limits.

How to use Compress PDF

  1. Upload your PDF by dragging it in or clicking the upload area.
  2. Pick a compression level — High Quality, Balanced, Maximum, or Exact Size.
  3. Download your smaller, clean PDF. Fast, simple, and completely free.

Frequently Asked Questions

How much can I compress a PDF?

Most PDFs shrink by 40–80%, depending on images and layout. Image-heavy files compress the most; text-only PDFs see smaller gains.

Will the text stay clear?

Yes — text remains sharp and readable. Only images are lightly optimized, and we keep them crisp enough for screens and most prints.

What is Exact Size mode?

It lets you target a specific file size in KB or MB with roughly ±5% accuracy. Great for portals with hard limits.

Which mode should I choose?

High Quality for printing, Balanced for everyday sharing, Maximum for the smallest file, and Exact Size when you have a strict upload ceiling.

Are my files private and secure?

Yes. Files are processed in your browser whenever possible, and any file uploaded for server-side conversion is automatically deleted within 30 minutes. We never share, sell, or read your documents.

Is this tool really free?

Yes — 100% free with no signup, no watermarks, and no hidden limits. Use every PDF2Tool feature without an account.

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