Top 10 Free PDF Tools in 2026
PDFs are everywhere — contracts, invoices, ebooks, forms. Working with them shouldn't require expensive software. Whether you need to edit, convert, merge, or sign PDFs, these 10 free tools have you covered.
Quick Comparison
| # | Tool | Best For | Type |
|---|---|---|---|
| 1 | PDF24 Tools | All-in-one toolkit | Browser |
| 2 | Sejda | Online editing | Browser |
| 3 | Sumatra PDF | Fast viewer | Windows |
| 4 | FreeCVT | Format conversion | Browser |
| 5 | LibreOffice | PDF editing | All |
| 6 | Smallpdf | Quick operations | Browser |
| 7 | Nitro PDF | Windows editing | Windows |
| 8 | PDFescape | Form filling | Browser |
| 9 | iLovePDF | Batch operations | Browser |
| 10 | PDFsam | Split & merge | All |
1. PDF24 Tools — Best All-in-One
Type: Browser & Desktop | Price: Free
PDF24 offers 30+ PDF tools in one place: merge, split, compress, edit, convert, and more. The desktop version works offline, and the browser version requires no installation. Everything is free with no watermarks or file limits.
What We Liked
- 30+ tools in one suite
- No watermarks or limits
- Desktop version works offline
- OCR included
What Could Be Better
- Interface could be more modern
- Some tools require desktop version
2. Sejda — Best Online Editor
Type: Browser | Price: Free (3 tasks/day)
Sejda provides a clean, modern interface for editing PDFs in your browser. Edit text, add annotations, fill forms, and sign documents. The free tier covers 3 tasks per day — enough for most users.
What We Liked
- Clean, modern interface
- Text editing in browser
- Form filling and signing
- No software installation
What Could Be Better
- 3 tasks/day limit on free plan
- File size restrictions
3. Sumatra PDF — Best Fast Viewer
Type: Windows | Price: Free
Sumatra PDF opens PDFs instantly — no loading screen, no bloat. It's the fastest PDF viewer available. If you just need to read PDFs quickly, nothing beats Sumatra.
What We Liked
- Opens instantly
- Incredibly lightweight
- Supports many formats (PDF, EPUB, MOBI)
- Portable version available
What Could Be Better
- Viewing only — no editing
- Windows only
4-10: Quick Reviews
4. FreeCVT
Excellent for PDF conversions. When you need to convert PDF to Word, images, or other formats, FreeCVT does it instantly in your browser. Files stay on your device for privacy.
5. LibreOffice
Free office suite that can open and edit PDFs. Import a PDF, make changes, and export. Good for text-heavy documents.
6. Smallpdf
Clean interface with 20+ PDF tools. The free tier covers 2 tasks per day. Good for quick operations.
7. Nitro PDF
Windows PDF editor with a ribbon interface. The free version handles most editing needs. Good for business users.
8. PDFescape
Browser-based PDF form filling and editing. Great for filling out forms without printing them.
9. iLovePDF
25+ PDF tools with batch processing. Merge, split, compress, and convert multiple files at once.
10. PDFsam
Specialized for splitting and merging PDFs. Open source and free. Great for handling large documents.
Bottom Line
PDF24 Tools is the best all-in-one PDF toolkit, while Sejda excels for online editing. For quick viewing, Sumatra PDF is unbeatable. And for conversions, keep FreeCVT bookmarked. 📄