Compress a PDF
Shrink large PDFs so they're easy to email and upload — you choose the quality.
Large PDFs are hard to email and slow to upload. Compressing a PDF reduces its file size — often dramatically for scanned or image-heavy documents — so it fits within attachment limits and uploads quickly.
This tool optimizes the images inside your PDF in the browser and lets you pick the balance between smaller size and higher quality. Your file is never uploaded to a server.
How to compress pdf
- 1
Upload your PDF
Drag your PDF into the box or click to select it.
- 2
Pick a quality level
Choose Recommended for a balanced result, or High and Strong to trade quality for size.
- 3
Compress and download
Download the smaller PDF and compare the new size before and after.