Online PDF Compression Tool provides a free online PDF compression service. For peace of mind, any files uploaded will be automatically deleted within an hour, check out our privacy policy for more information.

Do keep in mind that uploading and compressing PDFs can take some time, after hitting "upload & shrink" hang around until the page re-loads.

Compress PDF Version History

  • Version 1.1 (6/09/2015)
    • Changes to the PDF compression mechanism, site upload file sizes, fixes for segfaults in some larger PDFs
  • Version 1 (25/03/2015)
    • Site redesign launched
  • Version 0.7 (15/03/2015)
    • Optimisations to the compression process and added a time taken message
  • Version 0.6 (11/05/2014)
    • Improvements to compression process.
  • Version 0.5 (28/06/2013)
    • Minor text changes and additional advert block placement
  • Version 0.4 (6/09/2012)
    • Added Privacy Policy
    • Added Version Log
    • Added How To guide
  • Version 0.3
    • Added additional messages reporting status of upload
  • Version 0.2
    • Pulbicly released version

How PDF Compression Works

When you upload a file to us, we run through all of the content and try to recude the sizes of images, optimise the PDF for screens and reduce the colour pallet slightly.

People who use our service see up to 40% reduction in file size!

Files will be removed after 1 hour.
Version: 1.1
Maximum File Size is 500M

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