The Compress Options tool gives you granular, pixel-perfect control over exactly how your PDF document is optimized. Unlike standard compression tools that guess the best balance for you, this tool allows you to dial in specific image resolutions, color profiles, and metadata settings.
Understanding the Resolution Scale
The Resolution Scale setting controls the physical dimensions (height and width) of the pages and images inside your PDF as they are re-rendered.
This cuts the physical resolution of the pages in half. It results in the fastest processing time and the tiniest file size, but text and images will look noticeably blurry. Best for simple archiving where visual quality doesn't matter.
This scales the document down to 70% of its original size. It provides the perfect balance for most users—drastically reducing file size while keeping text fully readable on screens.
This barely shrinks the document (90% of original size), preserving almost all crisp details. Use this if you have high-quality images or charts that cannot lose their sharpness, though the file size will remain larger.
Understanding JPEG Compression Quality
The JPEG Compression Quality (0 to 100) setting determines how aggressively the engine compresses the internal image data of your document.
This applies heavy JPEG artifacting to your images. It shrinks the file massively, but images will look blocky or "pixelated".
The industry-standard sweet spot. It drops the file size significantly without introducing obvious visual artifacts to the naked eye.
Very light compression. The file size won't shrink as much, but your images will retain premium, near-original visual fidelity.
Color Settings & Metadata Scrubbing
If you want to squeeze every last drop of file size reduction out of your document, pay attention to these two settings:
If your document doesn't strictly need color, selecting Grayscale Mode converts everything to black and white, instantly stripping away bulky color data and drastically shrinking the file size.
Every PDF has hidden data attached to it (Author Name, Creation Date, Software Used, etc.). Choosing Scrub Metadata permanently erases this hidden text. Not only does this slightly reduce your file size, but it is also excellent for protecting your privacy before sharing documents publicly!
Having Trouble? Try This Workflow
If you are trying to compress a massive document but also need to remove some pages, it is much faster to split it first! Navigate to our Split PDF or Remove Pages tool. Trim the fat off your document there first, and then bring the smaller file back here to compress it perfectly!
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