Compress PDF
Reduce PDF file size while maintaining quality
How to compress PDF:
- 1. Upload a PDF file using the dropzone above
- 2. Select the desired compression quality level
- 3. Click "Compress PDF" to reduce the file size
- 4. Your compressed PDF will automatically download
All files are processed securely and deleted immediately after download.
How to Compress PDF Files Online
Reducing PDF file size is essential for email attachments, web uploads, and storage optimization. Our free PDF compressor uses smart algorithms to reduce file size while maintaining document quality and readability. Choose from multiple compression levels based on your needs.
Compression Process:
- Upload PDF: Drag and drop your PDF file or click to browse
- Choose Quality: Select compression level (Screen, eBook, Printer, Prepress)
- Compress: Click compress button to optimize file size
- Download: Your optimized PDF downloads automatically
Why Compress PDF Files?
✓ Smart Compression
Advanced algorithms reduce file size while maintaining visual quality and readability.
✓ Multiple Quality Levels
Choose from screen (smallest), eBook (balanced), printer, or prepress (highest quality).
✓ Email-Friendly
Reduce size to meet email attachment limits without losing important content.
✓ Faster Uploads
Smaller files upload quicker to websites, cloud storage, and online forms.
✓ Save Storage
Compressed PDFs use less disk space and cloud storage quota.
✓ 100% Free
Unlimited PDF compression without any cost or registration required.
Frequently Asked Questions
How much can I compress a PDF?
Compression results vary based on content. PDFs with images can be reduced 50-90%, while text-only PDFs compress less but still optimize.
Will compression affect PDF quality?
We use smart compression to minimize quality loss. Text remains sharp, and images are optimized for best size/quality balance.
Which compression level should I use?
Use Screen for smallest size, eBook (recommended) for balanced results, Printer/Prepress for maintaining highest quality.
Can I compress password-protected PDFs?
You'll need to unlock the PDF first using our Unlock PDF tool before compression.
Why compress PDF files?
Smaller files are easier to email, upload faster to websites, use less storage, and load quicker on devices.
Is there a file size limit?
We can compress very large PDFs. For files over 100MB, compression may take a few moments longer.