Compress PDF Files
Reduce PDF file size without losing quality. Choose your compression level. Free, private, and secure — files never leave your browser.
100% Private
Your files are processed in your browser. Nothing is uploaded to servers.
Adjustable Quality
Choose between file size and quality with three compression levels.
Instant Results
Compress PDFs instantly in your browser, no waiting for server processing.
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Frequently Asked Questions
How much can I reduce my PDF size?
Compression results vary depending on the PDF content. PDFs with many images typically see the largest reductions. Text-heavy PDFs may see smaller reductions since text is already efficiently encoded.
Will compression affect the quality of my PDF?
The compression primarily optimizes internal PDF structures. For most documents, there's no visible quality difference. If your PDF contains high-resolution images, you may notice slight differences at high compression levels.
Is my PDF data secure when compressing?
Your files are processed entirely in your browser. They never leave your device or get uploaded to any server, ensuring complete privacy.
What types of PDFs benefit most from compression?
PDFs with embedded images, scanned documents, and files with unoptimized object streams benefit the most. Text-only PDFs or already-optimized files may see minimal reduction.