How to convert PDF compress with ConvertFlow
- Upload your PDF.
- Choose compression level.
- Download the smaller PDF.
Key features
- Image optimization inside PDFs
- Multiple compression levels
- Local browser processing
- Free unlimited use
- Great for email attachments
Common use cases
- Emailing large report PDFs
- Uploading PDFs to web portals with size limits
- Reducing storage usage
- Sharing presentations efficiently
Why browser-based conversion?
Traditional online converters upload your files to remote servers. That adds wait time and raises privacy concerns — especially for personal photos, contracts, and business documents. ConvertFlow uses modern browser APIs to process files locally. Your data never leaves your device, and conversions complete in seconds without queueing behind other users.
Read more about this approach in our browser-based conversion guide.