| Feature | iPDF | |||
|---|---|---|---|---|
| Express (Free) | Lite ($4.95) | Standard ($7.95) | Pro ($9.95) | |
| Convert Office Docs to PDFs | ✓ | |||
| Convert PDF to PDF/A or PDF/X | ✓ | ✓ | ||
| Convert PDF to Images | ✓ | ✓ | ✓ | |
| Convert Image to PDF | ✓ | ✓ | ✓ | ✓ |
| Convert Text to PDF | ✓ | ✓ | ✓ | ✓ |
| Add PDF Watermark | ✓ | ✓ | ✓ | |
| Encrypt/Decrypt PDF | ✓ | ✓ | ✓ | ✓ |
| Sign PDF | ✓ | ✓ | ✓ | ✓ |
| Merge PDFs | ✓ | ✓ | ✓ | ✓ |
| Split PDF | ✓ | ✓ | ✓ | ✓ |
| Burst PDF | ✓ | ✓ | ✓ | ✓ |
| Add PDF Attachments | ✓ | ✓ | ✓ | ✓ |
| Grab PDF Attachments | ✓ | ✓ | ✓ | ✓ |
| Grab Text from PDF | ✓ | ✓ | ✓ | ✓ |
| Upload Files to SkyDrive and Scribd | ✓ | ✓ | ✓ | |
