iSharePDFCompress PDF files for free — in your browser
Shrink your PDF up to 80% without uploading it. Free, fast, private. iSharePDF runs entirely in your browser.
→ Try it now — free, no signupEmail attachment too big? iSharePDF re-encodes embedded images and prunes metadata locally — no upload, no server roundtrip.
Why compress locally?
- 🔒 Sensitive PDFs stay private Bills, medical files, IDs — never uploaded.
- ⚡ No upload bottleneck A 50 MB PDF compresses in ~10s instead of 2 min upload+wait.
- 📉 Up to 80% reduction Smart image re-encoding (JPEG quality 75 by default).
- 🆓 Free for 5 daily compresses 20 MB max per file. Pro unlocks 500 MB+.
Step-by-step
| Feature | Competition | iSharePDF |
|---|---|---|
| Scanned contract (12 MB) | → 2.4 MB | −80% |
| Slide deck with images (30 MB) | → 9 MB | −70% |
| Text-only PDF (4 MB) | → 3.6 MB | −10% |
Compression results on real-world PDFs
- Open isharepdf.com/app/tools/compress.
- Drop your PDF.
- Choose quality: low (max compression) → high (best quality).
- Click Compress. Download the result.