The Basic Process
First, capture: the scanner's optical hardware captures the printed area as you move the device across the text. Second, image processing: the captured image is processed to separate the printed characters from the background. Third, OCR: optical character recognition identifies the characters and reconstructs them as digital text. Finally, output: the recognized text can be displayed, spoken, translated, transferred, or stored, depending on the device.
What Is OCR?
OCR stands for Optical Character Recognition. It is the technology that allows software to identify printed characters inside an image.
Without OCR, a scanner has essentially captured a picture. With OCR, the picture can become searchable and editable text.
Why OCR Quality Matters
OCR performance isn't simply about a percentage. Real-world performance can change depending on font, font size, print quality, contrast, paper condition, lighting, scan speed, text alignment, language, and special characters.
That's why our reviews consider the actual scanning experience, not just manufacturer specifications.
What Happens After OCR?
Different products take the recognized text in different directions. Some send it to a computer. Some display it on the pen. Some can read it aloud. Others can translate or define the word.
This is one of the most important differences between products in the category.