PDF Compressor
Reduce PDF file size for email, uploads, and sharing with adjustable compression levels and instant browser-based downloads.
Upload PDF File
Choose one PDF, optimize it, and download the smaller version.
Compression Level Selector
Choose the balance between size reduction and visible quality.
Before/After Size Display
Download Compressed PDF
Your optimized PDF is ready.
How to use
Upload your PDF
Select the file you want to shrink for email, upload portals, or sharing.
Choose compression level
Pick low, medium, or high depending on whether quality or file size matters more.
Compress and download
Run the compression, review the size difference, and save the optimized PDF.
What is PDF compression?
PDF compression reduces the size of a PDF while keeping it readable. This helps documents upload faster, email more easily, and take up less storage space.
Why reduce PDF file size?
Smaller PDFs are easier to share, especially when websites and inboxes have strict limits. Compression is especially helpful for reports, scanned documents, forms, and image-heavy PDFs.
Lossy vs lossless compression
Lossless compression keeps quality nearly unchanged, while lossy compression removes some detail to save more space. Higher compression usually means smaller files but more visible quality changes.
Best practices for optimizing PDFs
- Use low compression for text-heavy forms and contracts.
- Use medium compression for most email attachments.
- Use high compression for large scanned PDFs and strict size limits.
- Keep the original file if you may need maximum quality later.
Advanced feature ideas
Batch compression
Compress multiple PDFs in one workflow.
Selective page compression
Optimize only the largest or image-heavy pages.
OCR compression for scanned PDFs
Improve searchability while reducing file size.
Cloud export options
Send compressed files directly to online storage.