OCR (Optical Character Recognition) turns pictures of text into real, selectable text. Results depend heavily on the input image — here is how to get near-perfect recognition.
1. Scan at the right resolution
300 DPI is the sweet spot. Below 200 DPI characters blur together; above 400 DPI files get huge with no accuracy gain.
2. Keep pages straight and flat
Skewed text is the #1 cause of OCR errors. Use a flat surface, align the page edges, and avoid shadows across the text.
3. Good lighting, high contrast
Black text on white background recognizes best. Avoid photographing documents under yellow light or with flash glare.
4. Set the correct language
ImgToPDF.online supports English, French, Spanish, German and Arabic OCR. Always match the language to your document — it loads the right dictionary and character shapes.
5. One column at a time
Complex multi-column layouts (newspapers) confuse OCR engines. Crop to single columns when accuracy matters.
Try it now: upload a scan on the converter, tick Convert with OCR, choose the language, and get a fully searchable PDF.
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