Compress PDF files to reduce file size online for free. Choose your compression level and download a smaller PDF instantly.
Free online PDF compressor that reduces PDF file size directly in your browser. Upload any PDF and choose from three compression levels: High Quality (minimal compression, best visuals), Balanced (good quality at smaller size), or Maximum Compression (smallest file size). The tool works by re-rendering each page as an optimized JPEG image and rebuilding the PDF, giving you significant file size reductions. See a visual comparison of original vs compressed size with exact savings percentage. Try different compression levels instantly without re-uploading. All processing happens client-side using pdfjs-dist and pdf-lib — your files never leave your device, making this tool completely private and secure. Perfect for emailing large PDFs, uploading to portals with file size limits, or archiving documents. No signup, no watermarks, no limits.
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