Compress PDF
Drop your PDF here
or
PDF files up to 100MB
Compress, shrink, and reduce PDF file size for easy emailing and uploading. Free, no sign-up, use as many times as you want.
Your Files Stay Safe
Your files are processed right on your device. Nothing is uploaded to the internet.
Never Leaves Your Device
Your files are processed on your own computer or phone — never sent online
No Sign-up Needed
No account, no login, no email required
Automatically Cleared
After processing, your file data is instantly erased
Why pattopdf?
No Waiting
Files aren't uploaded anywhere, so processing finishes right away.
Completely Free
No limits. Use as many times as you want, forever.
Safe & Private
Your files stay on your device. Nothing is ever sent to an external server.
FAQ
How much can I compress?
Compression rates vary depending on content, but image-heavy PDFs can often be reduced by 50-80%. Choose from Low, Medium, or High compression levels.
Does compression reduce quality?
Low compression maintains near-original quality. High compression reduces file size more aggressively but may slightly reduce image quality. Choose based on your needs.
What file formats and size limits are supported?
PDF files (.pdf) up to 100MB are supported. All processing happens in your browser — nothing is uploaded to any server.