Compress PDF

Upload a PDF, pick a compression level, and download a smaller version — works best on scanned or image-heavy PDFs.

Upload & compression level
📦
Click to choose a PDF, or drag & drop
Max 25MB · One file at a time
Compression result
Upload a PDF to get started.

How to compress a PDF online

Large PDFs break email limits, slow uploads, and frustrate clients. This free PDF compressor reduces file size in your browser so you can share documents without installing desktop software.

  1. Select or drag your PDF into the tool
  2. Choose a compression level that balances size and quality
  3. Run compression and wait for processing to finish
  4. Download the smaller PDF and compare size before sending

Compression is most effective on files with images or scanned pages. Text-heavy PDFs may shrink less, which is normal.

Why PDF file size matters

Email gateways often cap attachments around 10–25 MB. Job portals, university forms, and client portals also reject oversized uploads. Shrinking a scan or pitch deck by even 40–70% can be the difference between a failed send and a completed application.

Always open the compressed file once before sharing. If charts or photos look too soft, try a lighter compression setting and export again.

Tips for better compression results

Frequently asked questions

Is PDF compression free?

Yes. No signup is required to compress and download.

Will quality drop?

Some quality trade-off is expected at stronger settings, especially for photos. Start milder if the document must stay crisp for print.

Is my PDF uploaded and stored?

This tool is built for in-browser use so your document is not turned into a permanent cloud file on our side. Review the Privacy Policy for site-wide details.

What types of PDFs shrink the most?

Image-heavy PDFs and scans usually shrink more than pure text PDFs.

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