Compress PDF
Shrink large PDFs without noticeable quality loss. Perfect for email attachments.
Compress PDF files online to make them easier to upload, email, and share. Reduce file size fast without making the document unusable.
Drop a file here
PDF · Free: up to 25 MB
Accepted input formats
Output format: PDF
How to Compress PDF
Upload
Click "Browse files" or drag your file into the box above.
Process
Hit the "Compress PDF →" button. We'll handle the rest in seconds.
Download
Your file is ready immediately. Download it — then it's deleted from our servers.
Why use Compress PDF online?
Compress PDF files online to make them easier to upload, email, and share. Reduce file size fast without making the document unusable.
- Shrink PDFs for email attachments and forms portals
- Balance file size with visual quality
- Speed up sharing and uploads
- Especially useful for image-heavy PDFs
Common use cases
- Send PDFs under email attachment limits
- Upload files to forms with strict size caps
- Reduce large scans before archiving
- Make documents faster to download on mobile
The ultimate solution for PDF processing
100% Safe & Secure
All uploads use SSL encryption. Files are stored temporarily and deleted automatically after processing.
Fast & Easy
Powered by professional-grade engines. Most conversions complete in under 10 seconds.
High Quality
Formatting, fonts, images and layout are faithfully preserved across all operations.
No Install Needed
Fully browser-based. No software downloads, no browser extensions, no desktop app required.
Frequently Asked Questions
Helpful guides
Extra context for people comparing tools, fixing edge cases, or learning the fastest workflow.