Free PDF Compression Tool
Compress PDF online free
This free PDF compressor reduces file size for email attachments, upload limits, scanned documents, and easier sharing. Use the tool below, then download the smaller version of your file.
Browser-based PDF compressor
Best for scanned and image-heavy PDFs. Choose your file, pick a compression level, and download the smaller version if the output is reduced successfully.
Your files are handled safely
✔ Processing happens in your browser
✔ Your file is never uploaded to a server
✔ Your files are not stored or saved anywhere
✔ No account or sign-up required
Why Use It
Common reasons people compress PDFs
Email attachments
Shrink large PDFs before sending them through Gmail, Outlook, or other inboxes.
Upload limits
Reduce file size for school portals, job applications, government forms, and websites.
Scanned documents
Make scanned PDFs lighter and easier to upload, store, and share.
How It Works
Simple 3-step workflow
1. Choose your PDF
Choose the file you want to reduce in size.
2. Let the tool process it
The file is prepared for a lighter final version.
3. Download the smaller file
Save the reduced PDF and use it for sharing or uploads.
Trust & Privacy
Built for practical document tasks
This page is designed for real use cases like email limits, job applications, scanned documents, and school uploads.
Related Guides
FAQ
Compress PDF questions
Why is my PDF file so large?
PDFs often become large when they contain scans, images, or many pages.
Can I compress a PDF before emailing it?
Yes. That is one of the most common reasons to reduce file size first.
What if the file is still too large after compression?
Try splitting the file into smaller sections if the upload system allows it.
Is my file uploaded to a server?
No. Compression runs entirely in your browser. Your PDF is never uploaded to a server, and nothing is stored.