Free Online PDF Compress Tool

Compress PDF files to reduce file size while maintaining quality. Adjust the compression level to find the perfect balance. No registration required, and your files stay on your device.

Compress PDF files by re-encoding images with adjustable quality. Choose a preset that balances file size and quality.

⚠️ Important: This compression method converts pages to images. Text will not be selectable or searchable after compression.

📄 Maximum file size: 50MB

Drag & drop a PDF file here

or click to select a PDF

Maximum 50MB

How to Compress PDF Files

  1. Upload your PDF: Drag and drop a PDF file into the upload area, or click to select a file from your device.
  2. Adjust compression quality: Use the quality slider to control the balance between file size and quality.
  3. Review the compression: The tool will show you the original size, compressed size, and the reduction percentage.
  4. Download your compressed PDF: Once complete, click the download button to save your compressed PDF.

Features

  • Browser-Based Processing

    All compression happens in your browser. No files are uploaded to servers.

  • No Registration Required

    Use the tool instantly without creating an account or signing up.

  • Quality Control

    Adjust compression quality to balance file size and image quality.

  • Size Reduction

    See exactly how much space you've saved with compression statistics.

  • Single PDF Support

    Compress one PDF at a time with full control over quality settings.

  • Free to Use

    No hidden costs, no premium tiers, no usage limits.

Frequently Asked Questions

Is PDF compression safe and secure?
Yes. All compression happens in your browser. Your files are never uploaded to any server, ensuring complete privacy and security.
How much can I compress a PDF?
Compression depends on the content type. Text-heavy PDFs may compress up to 70-80%, while image-heavy PDFs may compress 20-40%.
Does compression affect PDF quality?
The quality slider allows you to control the trade-off. Higher quality means less compression, lower quality means more compression.
What is the maximum file size?
The maximum file size is 50MB. For larger files, consider splitting or using a desktop application.
Do I need to install any software?
No, everything works in your browser. No installation or downloads are required.

Want to Learn More About Compressing PDFs?

Read our comprehensive guide to learn everything about compressing PDF documents, best practices, and tips for working with PDF files.

Read the Complete PDF Compress Guide