Compress PDF — Reduce File Size Online
Reduce your PDF file size by removing redundant data and optimizing structure. See before/after comparison instantly. 100% private — no upload.
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Smart PDF Compression
Reduce file size without compromising readability
Size Reduction
Rewrite the PDF structure to remove redundant objects, metadata, and optimize content streams.
Compression Stats
See the original and compressed file sizes plus the percentage saved after compression.
Privacy First
All compression happens in your browser — your documents never leave your device.
FAQ
Compression varies by content. PDFs with many images can shrink 30-70%. Text-only PDFs may shrink only 5-15% as they are already compact.
Text and vector content stay perfectly sharp. The tool removes redundant data and metadata. Complex image-heavy PDFs may see minor visual changes.
For most use cases, yes. Our tool removes duplicate objects, strips metadata, and rewrites the PDF efficiently — same techniques as server tools.
Yes — merge first with our Merge PDF tool, then compress the result here for the smallest possible file.
Yes — no signup, no usage limits, no watermarks. Compress as many PDFs as you want, free forever.
If your PDF is mostly text or already optimized, there may be little redundant data to remove. PDFs with many images compress more effectively.
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