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The Compress PDF tool allows you to dramatically reduce the file size of your PDF documents directly inside your web browser. By optimizing document structures, re-compressing high-resolution images, and stripping unnecessary metadata, the tool yields lightweight PDFs that are easy to share and upload.

Complete Control Over File Size vs. Quality

Our compression engine gives you granular settings to balance size reduction against visual fidelity:

• Resolution Scale: Adjusts the physical dimensions (width and height) of the images and pages in your PDF. Choose between Low (0.5x) for maximum size reduction, Medium (0.7x) for the optimal balanced ratio, or High (0.9x) to preserve pixel-perfect details.
• JPEG Compression Quality: Controls how aggressively images are compressed. Lower percentages yield much smaller files at the expense of minor pixelation, while standard (60%) or premium (80%) preserves crisp visuals.
• Grayscale Conversion: Strips color channels from your documents. If color is not essential, grayscale mode converts the pages to black-and-white, saving significant byte size.
• Metadata Scrubbing: Erases hidden fields (like creator name, creation software, and dates) from your PDF catalog. This slightly reduces file size while protecting your privacy before sending files.

100% Secure Client-Side Processing

Just like all of our document tools, your PDF files are processed entirely locally on your device. No server uploads, no data transmission, and no tracking. Your private files never leave your web browser.