OCR accuracy depends heavily on source quality, not only the tool.
2
Aufloesung
Use at least 300 DPI to preserve character boundaries.
3
Kontrast
Keep text/background contrast clear for stable recognition.
4
Ausrichtung
Correct page orientation before running OCR.
5
Rauschen
Reduce scan noise to avoid false character detection.
6
Pruefung
After extraction, validate numbers, names, and email addresses first.