Compress PDF
Compress PDF files online with ProPDF. Reduce PDF file size instantly with our fast, secure PDF compressor. It’s free, reliable, and works on every device.
- From Device
- From URL
Or drag and drop files
ProPDF makes it easy to compress PDF files online and reduce PDF size without losing clarity. Whether you want to shrink a PDF for email, upload a large document, or share a smaller PDF, our free PDF compressor gives you fast and accurate results. No installation or sign-up is needed. Just upload your file, select your compression level, and download a smaller PDF in seconds.
- ✓Encrypted transfers
- ✓Auto file deletion
- ✓No watermarks
- ✓Works on all devices
Why Choose ProPDF Compress PDF Tool
Fast PDF Compressor
ProPDF reduces PDF file size in seconds. Upload your document and quickly shrink large PDF files. Whether you're emailing forms, uploading reports, or archiving documents, our PDF compressor provides a smaller file faster.
Compress PDF Free
ProPDF is a completely free PDF compressor. You can compress PDFs online without limits or registration. It’s the easiest way to reduce a PDF file size for sharing or storage.
High Quality Compression Output
Even when reducing PDF size, your document remains clear and readable. ProPDF keeps text sharp and images clean, striking the right balance between size and quality.
Secure and Private Compression
Your files are encrypted during upload and deleted automatically after processing. ProPDF never stores or views your documents, ensuring a safe and trusted PDF reducer.
100 Percent Online, No Software Needed
Use ProPDF directly in your browser to compress PDFs online. No downloads or plugins are necessary. Reduce PDF file size from any device with a simple click.
Works on Any Device
ProPDF works effortlessly on desktop, laptop, tablet, and mobile. Whether at home or on the go, you can make PDF files smaller from any device.
How to Compress PDF Files Using ProPDF
Upload your PDF files
Choose Your Compression Level
Click Compress
Preview and Download
Everything You Can Do Before You Compress PDF Files With ProPDF

- ✓Reduce PDF size for email or website uploads
- ✓Make a PDF file smaller without losing clarity
- ✓Shrink large PDFs for faster sharing
- ✓Convert PDFs to grayscale for extra compression
- ✓Compress scanned PDFs efficiently
- ✓Use high, medium, or low compression settings
- ✓Compress multiple PDFs in one session
- ✓Preview your file before downloading
- ✓Save compressed PDFs to cloud storage
Your Privacy, Our Priority
We take security seriously. All uploads are encrypted, processed safely, and removed from our servers shortly after completion. Your documents remain private, and ProPDF never stores or views them for any reason.
Secure Software Development
Security is built into every step of our development process. Regular reviews and checks help us maintain a safe and stable platform.
File Deletion Policy
Your files are automatically deleted a few hours after processing. Nothing is stored, reused, or kept on our servers.
Isolated File Processing
Each file is handled in its own secure environment, keeping your documents private and separated from all other tasks.
SSL/TLS Encryption
All uploads, downloads, and user actions are protected with SSL/TLS encryption, ensuring a fully secure connection.
Secured Data Centers
ProPDF runs on ISO-certified data centers with 24/7 monitoring, advanced firewalls, and strong physical and network security.
User Activity Monitoring
Our systems track unusual behavior using automated alerts and activity logs to protect the platform and ensure safe usage.
Frequently Asked Questions
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Ready to reduce your PDF file size? Upload your document and compress it in seconds.
Developed by the team behindFreeConvert, trusted by millions worldwide, ProPDF delivers the same secure, dependable experience for handling your documents.