Drop a PDF to compress
Tip: choose a stronger level for email-friendly size.
About this PDF compressor
DocPDFHub Compress PDF lets you reduce file size directly in your browser. The tool renders each page on a local canvas and re-encodes it as an optimized image, then rebuilds a new PDF. This means your document never leaves your device and nothing is uploaded to any server.
You can choose between three compression levels: Light keeps almost original quality, Balanced gives a good trade-off for everyday use, and Strong creates the smallest files for email and online forms. For most users, “Balanced” is a great default option.
Typical use cases include emailing large reports, reducing the size of scanned PDFs, or preparing files for limited storage devices. Because everything runs in your browser using modern web technologies, results are fast, private, and work on Windows, macOS, and Linux without installing extra software.