Free PDF Size Reducer
Aggressively reduce large PDF file sizes.
Shrink oversized PDFs by re-encoding pages as JPEG at stronger settings than standard compression. Ideal for scans and image-heavy documents.
How to use PDF Size Reducer
- Upload a large PDF.
- Pick medium, strong, or maximum reduction.
- Download the smaller PDF.
Features
- Aggressive presets
- Before/after size
- Scan-friendly
Why use this tool
- Shrink oversized scans that fail email or portal upload limits.
- Use stronger JPEG re-encoding than everyday PDF compression.
- See before/after size so you can pick the right trade-off.
Common use cases
- Fit a multi-page scan under a 5 MB upload cap
- Reduce archive PDFs before cloud sync
- Lighten image-heavy catalogues for WhatsApp sharing
What is PDF Size Reducer?
PDF Size Reducer is a free online tool on Free Quick Tools. Aggressively reduce large PDF file sizes. Processing stays in your browser whenever this tool runs locally.
Privacy
Your files never leave your device. All processing happens in your browser.
Frequently Asked Questions
How is this different from Compress PDF?
PDF Size Reducer targets more aggressive page re-encoding for large, image-heavy files. Compress PDF offers lighter everyday settings.
Will text stay crisp?
Scans usually shrink well. Born-digital text PDFs may look softer because pages are rasterized — try Medium first.
Do you upload my PDF?
No. Reduction runs entirely in your browser.
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