How to Use This PDF Compressor
Reduce PDF file size easily with our browser-based compression tool. Follow these simple steps:
- Step 1: Click the upload area or drag and drop your PDF file (max 50MB)
- Step 2: View original file size and name in the info panel
- Step 3: Adjust compression level using the slider (extreme to high quality)
- Step 4: Click "Compress PDF Now" to start the optimization process
- Step 5: Wait for processing and download your compressed file automatically
Pro Tip: For documents with text only, use "Extreme Compression". For photos or scanned documents, choose "High Quality" to preserve details.
Who Can Use This Tool
This PDF compressor is essential for various professionals and everyday users:
- Students & Teachers: Compress lecture notes, assignments, and research papers for email submission
- Business Professionals: Reduce size of reports, presentations, and invoices for faster sharing
- Web Designers & Developers: Optimize PDF portfolios and client documents for websites
- Government & Legal: Compress lengthy documents while maintaining compliance quality
- Freelancers: Reduce file sizes for client deliverables and online portfolios
- General Users: Anyone needing to email PDFs with attachment size limits
- Mobile Users: People who need to save storage space on their devices
Security & Privacy
Your document security is our top priority. Here's how we protect your data:
- Browser-Only Processing: PDF compression happens entirely in your browser using JavaScript
- No File Uploads: Your PDF files are never sent to any server - they stay on your device
- No Data Storage: We don't store, collect, or access any of your PDF files
- Complete Privacy: No tracking of file contents or personal information
- Open Technology: Built with trusted open-source libraries (PDF.js & PDF-Lib)
- Session-Based Processing: Files are processed temporarily and removed after download
Privacy Guarantee: We cannot see or access your documents. The compression happens locally on your computer, ensuring 100% confidentiality of your sensitive files.
Frequently Asked Questions
Is this PDF compressor completely free?
Yes, absolutely free! No hidden charges, no subscription fees, and no limitations on the number of files you can compress. We don't require registration or email sign-up.
How much can I reduce my PDF file size?
Compression results vary based on content. Text documents can be reduced by 70-90%, while image-heavy PDFs may see 20-50% reduction. Use the quality slider to find the perfect balance.
Does compression affect PDF quality?
With our adjustable quality settings, you can choose your preferred balance. "High Quality" preserves most details, while "Extreme Compression" maximizes size reduction with some quality loss.
What's the maximum file size I can compress?
We recommend files under 50MB for optimal performance. Larger files may work but could slow down depending on your device's memory and processing power.
Will text remain selectable after compression?
Yes! Our compression method preserves text layers, so text remains selectable, searchable, and copyable in the compressed PDF.
Can I compress password-protected PDFs?
No, our tool works with standard, unprotected PDF files. Password-protected or encrypted PDFs need to be unlocked first using appropriate software.
How long does compression take?
Processing time depends on file size and number of pages. A typical 10-page document takes 10-30 seconds. You'll see real-time progress during compression.