PDFfiller is a powerful PDF editor with form-filling and e-signature features, but it costs $8/month and uploads your files to their servers. For core PDF tasks like compression, merging, and conversion, PDF Toolbox is completely free with zero uploads.
| Feature | PDF Toolbox | PDFfiller |
|---|---|---|
| Compress PDF | ✅ | ✅ |
| Merge PDF | ✅ | ✅ |
| Split PDF | ✅ | ✅ |
| PDF to JPG | ✅ | ✅ |
| JPG to PDF | ✅ | ✅ |
| Edit PDF text | ❌ No | ✅ |
| Sign PDF | ❌ No | ✅ |
| Files uploaded to server | ❌ Never | ✅ Yes |
| Free tier | ✅ Unlimited | ❌ 30-day trial |
| Pricing (paid) | Free forever | $8/month |
| Registration required | ❌ No | ✅ Yes |
| Privacy-first | ✅ 100% local | ❌ Server processing |
| Open source libraries | Yes (pdf-lib.js) | Proprietary |
No trial. No credit card. No uploads. Just open and use.
Compress a PDF Now →Yes. PDF Toolbox is completely free forever — no trial period, no credit card required. Unlike PDFfiller which only offers a 30-day free trial before requiring a paid subscription.
No. Unlike PDFfiller which stores and processes your documents on their servers, PDF Toolbox processes everything locally in your browser. Perfect for sensitive contracts and confidential documents.
Not yet. PDFfiller wins on advanced editing and e-signatures. But for compression, merging, splitting, and format conversion, PDF Toolbox is faster, free, and private.
If you need PDF text editing or e-signatures, PDFfiller is worth considering. For everything else — compress, merge, split, convert — PDF Toolbox offers unlimited free use with total privacy.