Optimizes the file's structure and recompresses its streams — honest, lossless gains, often 10–30% on text-heavy documents. Image-heavy scans need the desktop app's real compression (image downsampling, quality control), which routinely achieves far more.
One PDF file
The PDF Toolbox desktop app compresses, redacts with verified removal, OCRs scans, repairs damaged files, converts to PDF/A and handles 500-page documents — all offline, on your machine, with the same promise: nothing ever leaves it. See everything it does →