How do I reduce my PDF file size?

Upload your PDF, select a compression level (Recommended works best for most files), then click 'Compress PDF'. Your smaller file will be ready to download in seconds.

Will compression reduce the quality of my PDF?

It depends on the compression level you choose. 'Recommended' compression maintains excellent quality while significantly reducing file size. 'Maximum' compression reduces size the most but may affect image quality. 'Minimum' compression preserves the best quality with smaller size reduction.

Is PDF compression free?

Yes, our PDF compressor is completely free to use with no registration required. For larger files and unlimited compressions, consider our Pro plan.

What's the maximum file size I can compress?

Free users can compress PDFs up to 50MB. Pro users can process files up to 500MB.

How much smaller will my PDF be?

Compression results vary depending on the PDF content. Files with many images typically compress 50-80% smaller. Text-heavy PDFs may compress 20-40% smaller. The compression preview shows estimated results before processing.

Compress PDF Online

Reduce PDF file size without losing quality. Choose from multiple compression levels to optimize your documents for email, web upload, or storage. Fast and secure.

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Max file size: 100MB • Accepted: .pdf

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Files removed in 30 min

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Compress PDF Online - Free & Easy

Need to reduce the size of your PDF files? Our free online PDF compressor makes it easy to shrink PDFs for email attachments, website uploads, or storage. Choose from three compression levels to get the perfect balance between file size and quality, all while keeping your documents looking professional.

Smart Compression

Our intelligent algorithm analyzes your PDF and applies optimal compression for best results.

Multiple Compression Levels

Choose Maximum, Recommended, or Minimum compression based on your quality needs.

100% Secure

Your files are encrypted during transfer and automatically deleted after 30 minutes.

Lightning Fast

Our high-performance engine compresses your PDFs in seconds, not minutes.

How to Compress PDFs

Upload your PDF file - Click the upload button or drag and drop your PDF.
Choose compression level - Select Maximum for smallest size, Recommended for balance, or Minimum for best quality.
Compress and download - Click "Compress PDF" and download your smaller file.

Compression Level Guide

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Maximum Compression

Best for: Email attachments, quick sharing, storage savings. Reduces file size by up to 80%. Some image quality may be reduced.

Recommended Compression

Best for: Most use cases. Reduces file size by 40-60% while maintaining excellent quality. Ideal for documents with mixed content.

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Minimum Compression

Best for: Print-quality documents, presentations, portfolios. Reduces file size by 20-30% while preserving maximum quality.

Why Compress PDF Files?

Large PDF files can be difficult to share via email, slow to upload, and take up valuable storage space. Compressing your PDFs reduces file size without sacrificing the integrity of your documents. Whether you're sending business proposals, sharing photos, or archiving documents, smaller PDFs mean faster transfers and more efficient storage.

Frequently Asked Questions

Can I compress password-protected PDFs?

You'll need to enter the password for protected files. Alternatively, use our Unlock PDF tool first.

Will the text remain searchable?

Yes! Our compression maintains text layers, keeping your PDFs fully searchable and selectable.

Can I compress PDFs on my phone?

Absolutely! Our tool works on any device with a web browser - phones, tablets, and computers.

Need to combine files first?

Use our Merge PDF tool to combine multiple PDFs, then compress the result.