Yes, Compress PDF is completely free. There are no pricing tiers, no hidden costs, and no usage limits.

No. Compress PDF processes everything entirely in your browser. Your files never leave your device.

Compress PDF supports standard PDF files. For image-based tools, JPG, PNG, and WEBP are supported.

Upload your PDF and try the compression levels: start with Recommended, check the resulting size shown before download, and step up to Extreme if you need a smaller file. How close you can get to an exact target like 200KB depends on the document — image-heavy files compress the most.

Compression results vary by content — text-heavy PDFs shrink dramatically, while image-heavy files still see meaningful reductions. The tool shows you the exact before and after sizes and the percentage saved before you download.

Light keeps the best quality with a modest size reduction, Recommended balances file size and quality for everyday use, and Extreme produces the smallest file by compressing images more aggressively. Text stays selectable and the layout is preserved at every level.

PDFKit lets you choose the balance. Light leaves images untouched for zero quality loss, while Recommended and Extreme re-optimize embedded images — text stays crisp and vector sharp at every level.

No. Compression only optimizes the file — text remains selectable, images keep their position and size, and the page layout is preserved exactly. The PDF format is never altered, only made smaller.

PDFKit compresses files up to 500 MB, and processing happens entirely in your browser — so even large documents never leave your device.