Private · runs on your device
Compress PDF to 300 KB
Shrink any PDF to 300 KB or less — free, private, and entirely on your device. The file is never uploaded anywhere.
Maximum size
Compress a PDF to a specific size
Frequently asked questions
Can every PDF be compressed to 300 KB?
Most PDFs with images or scans compress to 300 KB easily. A long, text-heavy or very high-resolution document may not reach 300 KB while staying readable — in that case SnugPDF shows you the smallest size it could achieve so you can still download it.
Is my document uploaded to a server?
No. All compression runs locally in your browser. Your PDF never leaves your device, which makes the tool safe for contracts, medical records and other sensitive documents.
Will the compressed PDF still look good?
SnugPDF first tries lossless optimization, which keeps the original quality. If that isn't enough to reach 300 KB, pages are re-rendered at a lower resolution — text stays readable, but it can no longer be selected or searched.
What if I need a different size than 300 KB?
Use the size buttons or the custom field on this page to pick any limit from 10 KB upwards, or open one of the other target-size pages linked below the tool.