Free PDF Compressor
Reduce PDF size by removing metadata, stripping unused objects, and optimizing content streams. Real compression — no fake numbers. 100% browser-based.
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🗜️ PDF Compressor
✓ Real optimization via pdf-libFrequently Asked Questions
It depends entirely on what's in your PDF. Metadata-heavy or annotation-heavy files can shrink 10–40%. PDFs whose size is dominated by embedded images may only shrink 1–5% in the browser. We show you the exact real savings — no fake percentages.
Re-encoding embedded JPEG/PNG images requires pixel-level decoding and re-compression, which needs either Ghostscript (server-side) or a Canvas-based pipeline. This tool uses pdf-lib which operates at the structural level, not the pixel level.
No. Everything runs in your browser using pdf-lib. Your file never leaves your device.