Compress PDF

Reduce PDF file size while preserving quality

Drop your file here

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Free Online PDF & Image Tools — Edit, Convert, Compress

Merge PDF

Combine multiple PDFs into one

Split PDF

Extract pages from a PDF

PDF to Image

Convert pages to JPG or PNG

All PDF Tools

Compress PDFMerge PDFSplit PDFSign PDFPDF to WordWord to PDFPDF to JPGPDF to PNGJPG to PDFPDF to ExcelPDF to PPTHTML to PDFRotate PDFUnlock PDFProtect PDFDelete PagesExtract PagesWatermark PDFOCRCompress ImageImage Converter

How to Compress a PDF Online

  1. Upload your PDF — drag and drop or click to browse for your file.
  2. Automatic compression — Luleit optimizes your PDF by stripping unused objects, compressing streams, and reducing overhead.
  3. Download compressed PDF — save the smaller file to your device in one click.

Why Luleit's PDF Compressor is Different

Frequently Asked Questions

Where does my PDF go when I compress it?+

Nowhere. The entire compression happens in your browser using JavaScript — your PDF never touches our servers, never gets uploaded, never gets stored. Once you close the tab, the file is gone from memory; we have no copy. There is nothing for anyone to subpoena, breach, or sell.

Is this PDF compressor really free, with no catch?+

Yes — no signup, no email required, no watermarks, no page limits, no daily quota, and no upsell for a paid tier. The tool runs entirely in your browser using free, open-source JavaScript libraries, so we have no server costs to recover. Your privacy IS the business model: we collect nothing because we have no use for it.

How much can I reduce the file size?+

Scanned PDFs typically shrink 50–80% by recompressing embedded images and stripping unused metadata. Native text PDFs compress less (10–30%) because text is already efficient — most savings come from the images.