Extract Text from Scanned PDF Free

Scanned PDFs are essentially images — there is no underlying text layer, so standard copy-paste does not work. You need an OCR (Optical Character Recognition) tool like PDNob to analyze the image and convert it into selectable, editable text before you can copy or edit it.

PDNob uses AI-powered OCR that delivers up to 99% accuracy on clearly scanned documents with standard fonts and good image quality. Accuracy may vary for low-resolution scans, handwritten text, or documents with heavy graphical overlays. For best results, ensure your scanned PDF has a resolution of at least 300 DPI.

PDNob works entirely in the browser, so Mac users can extract text from scanned PDFs in Safari or Chrome without downloading any software. Mac's built-in Preview app can only handle digitally created PDFs — it cannot process scanned or image-based files, making PDNob a practical alternative.

Yes. PDNob's OCR engine supports more than 10 languages including Chinese, French, German, Spanish, Japanese, and Korean. The tool automatically detects the language in most cases, though you can also select it manually for better precision on mixed-language documents.

PDNob's AI handwriting recognition can extract text from handwritten scanned PDFs across multiple languages. Recognition quality depends on handwriting clarity and consistency — neat, printed handwriting converts more accurately than cursive or irregular styles.