Compress PDF

Reduce PDF file size with lossless optimisation or image recompression.

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About Compress PDF

Compress PDF makes PDF files smaller so they fit email limits and online forms. Choose lossless optimisation to keep quality untouched, or image recompression for a much smaller file.

Key features

  • Lossless mode removes waste without touching quality
  • Image recompression for big size reductions
  • Shows the size before and after
  • Runs in your browser for privacy

Tips

Scanned documents and photo-heavy PDFs shrink the most. Text-only PDFs are usually already small. If a portal needs a file under a strict limit, try a stronger image setting.

How to use Compress PDF

  1. Drop your file into the upload box, or click it to choose a file from your device.
  2. Adjust the Compress PDF options shown under the upload box.
  3. Press the action button and wait for the progress bar to finish.
  4. Check the preview or summary, then press Download to save the result.

Frequently asked questions

Are my files uploaded to your server?

No. This tool runs entirely in your web browser. Your file is read and processed on your own device and is never sent to Vexara.

Why did my PDF barely shrink?

Lossless mode only rewrites the file structure. PDFs that are mostly text are already compact. Strong mode rebuilds pages as compressed images, which shrinks scanned documents a lot but makes text non-selectable.

Is it free?

Yes. All tools are free to use without an account.