Compress PDF
Reduce PDF file size without losing quality
How to use:
- Select a PDF file from your device
- File will be optimized and compressed automatically
- Click "Process" to compress the PDF
- Download the compressed file
🔒 Secure & Private
âš¡ Fast Processing
💯 Free to Use
About Compress PDF
Compress PDF files online for free with advanced smart optimization. Our PDF compressor intelligently re-encodes images, removes unused data, and optimizes the PDF structure to significantly reduce file size while preserving text clarity and document quality. Perfect for email attachments, web uploads, and storage optimization.
How It Works
Our advanced PDF compression tool analyzes the internal structure of your PDF. It identifies and re-compresses images (using optimized JPEG encoding), removes redundant metadata and unused objects, and consolidates the file structure. Unlike basic compressors that rasterize pages, our tool preserves text selectability and vector graphics, ensuring your document remains sharp and searchable while achieving maximum size reduction.
Why Use Our Compress PDF Tool?
- ✓Free PDF compression with no file size limits
- ✓Smart object-level optimization for maximum reduction
- ✓Preserves text selectability and vector quality
- ✓Advanced image re-compression (JPEG/WebP)
- ✓No registration or email required
- ✓Fast compression - process files in seconds
- ✓Secure - files processed locally in your browser
- ✓No watermarks added to compressed files
Common Use Cases
- •Reduce file size for email attachments (stay under size limits)
- •Optimize PDFs for faster website loading
- •Save storage space on your device or cloud
- •Speed up file uploads and downloads
- •Compress scanned documents and images
- •Reduce bandwidth usage when sharing files
- •Meet file size requirements for online forms
- •Archive documents more efficiently
Frequently Asked Questions
How much can I compress a PDF?
Compression results vary by content. Image-heavy PDFs can be reduced by 40-80%, while text-heavy PDFs see structural optimization improvements. Our smart compression targets the largest elements (images) without degrading text quality.
Will compression reduce PDF quality?
We prioritize quality retention. Text and vector graphics are preserved exactly as they are. Images are re-encoded at optimized quality settings (balanced for screen viewing). You get a much smaller file with virtually no visible difference in quality for most documents.
Is it free to compress PDFs?
Yes! Our PDF compressor is completely free with no limits on file size or number of compressions. No registration, subscription, or payment required.
Are my files secure?
Absolutely. All compression happens locally in your browser. Your files are never uploaded to our servers, ensuring complete privacy and security. Files are processed entirely on your device.
Can I compress password-protected PDFs?
You need to unlock password-protected PDFs before compression. Use our Unlock PDF tool first, then compress the file.
What is the maximum file size I can compress?
There is no strict limit, but very large files (over 100MB) may take longer to process. Most PDFs compress in just a few seconds.