translate scanned PDF
How to Translate a Scanned PDF
Learn what matters when translating scanned PDFs, including OCR quality, page clarity, and review steps.
OCR comes before translation
A scanned PDF is usually an image of text, not selectable text. OCR turns that image into machine-readable words. If OCR misreads the source, the translation will inherit those mistakes.
Improve the source scan when possible
Straight pages, strong contrast, clean lighting, and high resolution help OCR. Blurry photos, curved book pages, stamps, handwriting, and low-contrast scans usually need more review.
Review the translated result against the scan
For receipts, contracts, certificates, manuals, and academic papers, compare important translated passages with the original image. This catches OCR errors before they become translation errors.