Compress Scanned PDF
Reduce the file size of scanned PDFs. Compression is applied locally in your browser. No upload required.
Free up to 100 MB · No signup · No ads · Your files never leave your device
Drag & drop your file here
or click to browse (.pdf, max 100MB)
Processed locally in your browser — your file is never uploaded.
Use this tool to compress scanned PDF documents. Scanned files tend to be large because they are image-based. This tool applies compression to reduce file size while keeping the content readable. All processing happens locally for speed and privacy.
Why Use This Tool
- Processed locally in your browser
- No signup or waiting
- Effective on image-heavy scanned documents
- Private by design — no file uploads
- Works on desktop and mobile
How It Works
- 1Upload your scanned PDF
- 2Compression is automatically applied to reduce file size
- 3Download your compressed file
Frequently Asked Questions
Why are scanned PDFs so large?▾
Scanned PDFs store each page as an image, which makes them much larger than text-based PDFs. Compression reduces the image size while keeping the content readable.
Will the text still be readable after compression?▾
Yes. The tool reduces image size while preserving readability. Very heavy compression may slightly reduce image clarity.
Do my files get uploaded anywhere?▾
No. All processing happens locally in your browser. Your files never leave your device.
Can I compress multi-page scanned documents?▾
Yes. The tool processes all pages in the document and applies compression to each one.