Compress PDF Files Online
Reduce PDF file size up to 90% while maintaining quality. Free online PDF compressor with multiple compression levels.
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Drag & Drop PDF here or Click to Browse
Supported: .pdf
or click to browse
Tip: paste a file with Ctrl/⌘+V
Max file size: 200 MBPro: up to 2000 MB
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Frequently Asked Questions
It can. Higher compression makes files smaller, but image-heavy PDFs may show some visible quality loss. Lower compression levels keep more original quality while saving less space.
Compress PDF supports files up to 200 MB on Free and 2 GB on Pro.
Yes. Files are transferred over TLS, stored temporarily for processing, then deleted after 24 hours on Free or 7 days on Pro. Files are never shared or sold.
Not directly. Encrypted PDFs need to be unlocked first with our Unlock PDF tool before they can be compressed.