Scan Converter

Scanned Image to Word Converter

Digitize scanned documents by converting flatbed scanner output, mobile phone scans, and photographed pages into editable Microsoft Word files. Our OCR handles skewed text, low contrast, and noise artifacts common in scanned images.

Drag & drop scanned images here

or click to browse · Accepts JPG, PNG, TIFF, BMP scans

JPGPNGTIFFBMP

Maximum 10 files · Up to 20MB each

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Scan Quality Checker

Enter your scanner's DPI setting and document size to check whether the scan resolution is adequate for reliable OCR text extraction. Get a readability rating and accuracy estimate.

Preprocessing Scanned Documents for Maximum OCR Accuracy

Scanned document digitization requires preprocessing to correct common scanner artifacts. Flatbed scanners introduce 3 types of image defects: skew (rotation of 0.5-3 degrees), noise (dust particles appearing as dots), and uneven lighting (darker edges from raised book spines).

Convert JPG to Word applies automatic deskewing using Hough transform line detection. The system identifies horizontal text baselines, calculates the average rotation angle, and counter-rotates the image. This correction step recovers 5-10% accuracy on skewed scans.

Scanner DPI Settings for Different Document Types

There are 4 recommended DPI settings for different document types:

  • 300 DPI: Standard printed documents, letters, and forms with 10-12pt text. Produces files of 2-4 MB per page as JPG.
  • 400 DPI: Documents with small footnotes, legal contracts with 8pt text, or dense spreadsheet printouts.
  • 600 DPI: Engineering drawings, architectural blueprints, or documents with fine print below 6pt size.
  • 150 DPI: Quick drafts or large-text documents (14pt+). Produces files under 1 MB per page.

Mobile Phone Scans vs Flatbed Scanner Scans

Mobile phone camera scans introduce perspective distortion that flatbed scanners do not. A phone held at a 15-degree angle produces trapezoidal distortion across the page. Convert JPG to Word applies perspective correction using corner detection to straighten the document before OCR. Flatbed scans produce geometrically accurate output but are limited by the scanner bed size (typically A4 or US Letter).

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FAQ

Scanned Image to Word — Common Questions

Use 300 DPI when scanning documents for OCR. At 300 DPI, a standard 12pt character is approximately 50 pixels tall, providing sufficient detail for 97%+ recognition accuracy. Use 400-600 DPI for documents with text smaller than 8pt or dense tabular data.

Yes, Convert JPG to Word automatically corrects skewed scans using Hough transform line detection. The system identifies horizontal text baselines and counter-rotates the image to align text horizontally. This correction handles skew angles up to 15 degrees. Scans tilted beyond 15 degrees should be re-scanned or manually rotated before upload.

Grayscale scans produce equal or better OCR results compared to color scans for standard text documents. Color scans are 3× larger in file size because they store red, green, and blue channels. Grayscale scans provide sufficient contrast for character recognition. Use color scanning only when the document contains colored text that needs to be distinguished from black text.

Place the book face-down on the scanner with the spine aligned to the scanner edge. Press gently on the cover to flatten the page. The resulting scan will have darker areas near the spine due to page curvature. Convert JPG to Word compensates for uneven lighting by normalizing brightness across the scan before OCR processing.