Compress PDF
Three quality presets — pick the one that fits the smallest size your eyes can tolerate.
100% in your browser. Your file never leaves your device.
Want it on the go? Get the app.
All tools, fully offline, with extras the web cannot do.
Features
- Three presets: low / medium / high
- Up to 80% size reduction on image-heavy PDFs
- Live size-saving estimate after compression
- No upload — everything runs locally
- Works on any PDF
- Native app does vector-preserving compression
About this tool
Pages are re-rendered at a target DPI and re-encoded as JPEGs, then packed back into a PDF. Best for image-heavy documents (scans, marketing PDFs). For text-only PDFs the native app uses a vector-preserving pipeline.
How to compress a PDF
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Pick a level
Low keeps quality; high keeps file size small.
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Drop your PDF
Choose the file you want to shrink.
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Compress
Pages are re-rendered and packed locally.
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Download
The compressed PDF is offered for download.
Frequently asked questions
How much smaller will it be?
Typical reduction: 30–80% depending on content. Image-heavy PDFs benefit most.
Does text stay sharp?
At "low" yes. At "high" text becomes raster — readable but not zoomable indefinitely.
Is metadata preserved?
No — re-rendering produces a fresh PDF. Use Optimize if you need to preserve structure.
Will this break my PDF?
The output is a valid PDF/A-compatible file viewable everywhere.
Free?
Yes — funded by ads.