Capture or import a clear image, run OCR in the correct language, review the recognized text against the source, and correct errors before using the result.
Step-by-step instructions
Capture a sharp page
Use even light, keep the page flat, and fill the frame without cutting off text.
Open the OCR tool
Choose text recognition in PDF Scanner and import the scan or photo.
Use the correct language
Select the document language when the workflow offers that option.
Run recognition
Let OCR analyze the visible text and create an editable result.
Compare with the source
Check names, numbers, punctuation, columns, formulas, and unusual characters.
Copy or export carefully
Use the corrected text in the intended app while retaining the source image for reference.
Tips for a better result
- High contrast between text and paper improves recognition.
- Handwriting and decorative fonts can be less accurate than clear print.
- Never rely on unverified OCR for financial, legal, medical, or safety-critical text.
Use PDF Scanner on iPhone or iPad
The app combines this workflow with scanning, OCR, conversion, page tools, compression, and signing. Feature names and screen labels can change between versions.
View on the App StoreFrequently asked questions
What does OCR mean?
Optical character recognition identifies characters in an image and converts them into machine-readable text.
Can OCR recognize formulas?
The App Store listing mentions formula recognition, but complex notation should always be compared with the original.
Why does OCR make mistakes?
Blur, shadows, low resolution, page curvature, unusual fonts, and mixed languages can reduce recognition accuracy.