PDF Compressor
Reduce PDF file size by optimizing structure and stripping redundant metadata — in your browser.
Drop a PDF here or click to upload
Select a PDF to compress
Frequently Asked Questions
How does the compression work?
This tool re-saves the PDF with optimized settings: it strips redundant metadata, removes unused objects, and applies compression to streams where possible. The result is often smaller than the source.
Will compression reduce quality?
For most PDFs, compression is lossless — it restructures the file without altering visible content. PDFs with large embedded images may shrink less since the images are not re-encoded.
Why is my PDF not much smaller?
PDFs that are already optimized, or that contain large JPEG images, have little redundant data to remove. The tool removes what it can without altering visible content.
Are my PDFs uploaded anywhere?
No. Compression happens entirely in your browser. Your PDF never leaves your device.
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