Compress a PDF to 500 KB

Compress a PDF to under 500 KB in the browser. Target pre-set, multiple passes, real size shown at the end. Free, no signup, no upload.

500 KB is the usual ceiling for email attachments on strict corporate mail servers. This page starts with that target so you can drop the file in and download the result.

How it works

  1. Add your PDF — it is read in the browser and never uploaded.
  2. The 500 KB target is already set for this page.
  3. Compression runs in passes, lowering image quality each time until the output fits.
  4. Download the result. The real size is shown, and if the target could not be met you are told the best achieved.

Other sizes