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Aletheia EditionsResourcesUse cases
Step 1 – Download the latest version
By downloading the Aletheia software you agree to the following end-user licence agreement.
Download version 3.4.999 (Lite/Pro, Windows 64 bit)
Alternative download for 3.4.999 (Lite/Pro, Windows 64 bit)
Download version 3.3.943 (Lite/Pro, Windows 64 bit)
Step 2 – Choose an Edition
Lite
Aletheia Lite offers essential features for viewing and editing page layout files. It supports various file formats including PAGE, ALTO and ABBYY FineReader XML. It comes with a free and unlimited licence for registered users (personal research).
Pro
Aletheia Pro is a complete document analysis system offering a wide range of fully automated and assistive features including page recognition and OCR (Tesseract). The complete product is available to try for free for a limited period. Email us for extended academic use.
| Features | Lite | Pro |
| File Import | ||
| PAGE | ||
| ALTO, FineReader XML, hOCR | ||
| File Export | ||
| PAGE | ||
| Text, Screenshot, Gamera XML, Bitonal image | - | |
| Image Processing | ||
| Binarisation (Manual, Otsu, Sauvola) | - | |
| Noise removal | - | |
| Manual editing | - | |
| Manual Page Content Editing | ||
| Rectangle and polygon tools | ||
| Content attributes (properties) | ||
| Reading order | ||
| Layers | ||
| Text content (transcription, editing) | ||
| Text line baselines | - | |
| Semi-Automated Page Content Editing | ||
| Assistive region creation ("shrink-wrapping") | - | |
| Auto-adjusting to child/parent content objects | - | |
| Merging, splitting of regions | - | |
| Text propagation to/from child content objects | - | |
| Assisted text line, word, glyph creation | - | |
| Fully Automated Tools | ||
| Full page analysis and recognition (Tesseract) | - | |
| OCR of individual page content objects (Tesseract) | - | |
| Page border detection | - | |
| Dewarping | ||
| Grid creation/editing | - | |
| Grid import/export | - | |
| Image dewarping | - | |
| Customisation | ||
| Task-specific toolbars | ||
| Thumbnail view | - | |
| Styles and highlighting | - | |
| Additional Features | ||
| Page metadata | ||
| Page content statistics | - | |
| Quality assurance | - | |
| Experimental tools | ||
| Region detection (segmentation) | - | |
| Baseline detection | - | |
| Feature extraction | - | |
| Typewritten OCR | - |