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PDF

PDF Compress

The PDF Compress reduces a PDF locally using the transformations supported by the browser PDF library and exports a new copy. It gives an immediate, focused result with no signup, explains the important limits beside the output, and keeps the workflow as private as the implementation allows.

Last updated · Free, no signup

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How does this PDF compressor reduce file size?

This PDF compressor reduces size by rendering pages and rebuilding them with browser PDF libraries, trading some original document structure for a smaller exported copy. The approach can help when high-resolution page content dominates and a visually readable sharing copy matters more than preserving every source feature.

Pdf.js renders and pdf-lib re-embeds the pages locally. Because rasterization is involved, selectable text, vectors, links, forms, and signatures may be lost, and already optimized documents may shrink little. It is a lossy browser workflow rather than qpdf-style structural optimization, so keep the original.