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PDF Compress

Compress PDF file size online. Choose Low, Balanced, High, or Maximum compression and see an instant before/after size comparison. Free, private, browser-only.

How to use this pdf compress

Drop or select your PDF file
Choose a compression level (Balanced is recommended for most PDFs)
Click "Compress PDF" and wait a few seconds
Review the size comparison and download the compressed file

Drop a PDF file to compress

or click to browse

Files never leave your device · 100% private

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Frequently Asked Questions

How much smaller will my PDF get?

Results vary by PDF content. Text-heavy PDFs typically see 10–40% savings. PDFs with many embedded images may see more.

Is the quality preserved after compression?

Yes — page content, text, and images are not altered. Only structural and metadata overhead is removed.

What does Maximum compression strip?

It removes document metadata, annotations, and bookmarks. Visual content on pages remains intact.

Are my files uploaded anywhere?

No. Everything runs in your browser. Your PDF never leaves your device.