Compress PDF files
Reduce PDF file size online. Same quality, smaller file — free and instant.
- Use presets for quick compression targets.
- PDFs with many images compress the most.
- Original quality is preserved as much as possible.
How to use
Upload the PDF file you want to compress from your device.
Pick a preset (light, recommended, or maximum) or set a custom target file size.
Click "Compress" and download the smaller file in seconds. No uploads needed.
Why use OfflinePDFy?
Files never leave your device. Zero uploads.
No account, no subscription, no limits.
Install as a PWA and use without internet.
Works on desktop, tablet, and mobile.
Frequently asked questions
Will compressing a PDF reduce its quality?+
Minor quality reduction is expected at higher compression levels. The "Recommended" preset balances size and quality well.
How much can I reduce a PDF file size?+
Results vary. PDFs with many images can be reduced by 50-80%. Text-only PDFs compress less.
Is PDF compression free?+
Yes, completely free with no account, no limits, and no watermarks added.
Does the compressed PDF retain all content?+
Yes. All text, images, and formatting are preserved. Only file size is reduced.