| Feature | Corrupt PDF (Free version) | | Official Hachette Digital | | :--- | :--- | :--- | :--- | | Unit 5 (Au secours) | Missing entirely | Restored | Present | | Searchability | Zero (Image only) | Full OCR | Full OCR + Hyperlinks | | Audio Links | Dead icons | Manual MP3 links | Automatic streaming | | File Size | 150 MB (bloated) | 45 MB (optimized) | 120 MB (includes video) | | Printing | Blocked or Blurry | High-res, Printable | Watermarked, Printable |