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Compress PDF

Reduce PDF file size while keeping quality. Compress PDF files online for free.

Your file never leaves your device — everything is processed locally in your browser.

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How to use Compress PDF

  1. Drop your file into the upload box above (or click to browse).
  2. Adjust the options to your liking.
  3. Click the process button — everything runs instantly in your browser.
  4. Download your result. Your file was never uploaded anywhere.

Related tools

Merge PDFCombine multiple PDFs into one file.PDF to JPGExport every PDF page as a JPG image.Flatten PDFMerge form fields and annotations into the page.Compress ImageShrink JPG, PNG and WebP file sizes.Split PDFSplit a PDF by page ranges or every N pages.

Part of 23 PDF Tools on fltools — all free, all on-device.