Reduce PDF file size up to 80% locally in your browser. 100% private, no server uploads.
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* This tool uses client-side rasterization. Pages will be converted to highly compressed images to guarantee massive size reductions without sending your files to a server.
Compress your PDF documents instantly without uploading them to a third-party server. Artboards processes your files entirely locally inside your browser, guaranteeing 100% privacy and security for your sensitive documents.
Standard web browsers cannot natively extract and re-compress individual image streams buried deep inside a PDF. To solve this and deliver massive file size reductions (often over 50%), our tool uses a technique called rasterization. It renders every page of your PDF into highly compressed JPEG images, and reconstructs a brand new, highly optimized PDF file.
This makes our tool ideal for image-heavy presentations, scanned documents, and massive files that need to be sent via email, while ensuring your files never leave your device.