How to Extract Text from Images with OCR on Android

OCR converts visible characters in a document image into digital text. It can save time, but recognition is never a substitute for checking names, dates, prices, account numbers or legal clauses.

Choose a suitable image

Use a sharp, well-lit image with straight text lines. Avoid motion blur, strong perspective, shadows, glare, decorative backgrounds and very small text. Crop unrelated areas while keeping all required content.

Run OCR

1. Open the OCR tool.
2. Select a compatible image or captured document page.
3. Wait for the required OCR component to become available. First use may require an internet connection for a Google Play services download.
4. Start recognition and review the extracted text.
5. Copy or share only after correcting important errors.

Improve recognition accuracy

• Keep the image upright.
• Use high contrast without losing faint characters.
• Capture one page at a time.
• Avoid handwriting when machine-readable text is required.
• Use the correct interface and text language where applicable.
• Retake the image instead of repeatedly processing a blurred copy.

Common OCR mistakes

OCR may confuse 0 with O, 1 with I or l, punctuation with noise, and closely spaced columns with a single line. Tables, handwritten notes, stylized fonts and low-resolution scans require extra checking.

Privacy

In dEz PDF Reader Editor Viewer, recognition is designed to run on the device. A compatible model component can be downloaded through Google Play services, but the selected document image is not sent to an application-owned OCR server.

When not to rely on OCR alone

Always compare extracted text with the source before using it for contracts, payments, medical details, identity numbers, deadlines or formal submissions. OCR is a convenience tool, not a guarantee of transcription accuracy.