How to clean scanned tables without changing layout

Real user problem patterns

• Tiny numbers
• Weak grid lines
• OCR table confusion
• Low contrast cells

Specific steps

1. Clean a sample table page.
2. Ask to preserve rows and columns.
3. Improve grid and number contrast.
4. Avoid table extraction claims.
5. Review small values.
6. Export a visual PDF.

Visual examples

Best for

• Scanned PDF pages with visible text
• Flattened or image-based documents
• Files where visual readability is the goal

Not for

• Precise text-layer editing
• Certified legal restoration
• Automatic data extraction without review

Common mistakes

• Over-whitening the page until thin lines disappear.
• Treating visual cleanup as OCR or text conversion.
• Exporting without reviewing numbers, dates, tables, and handwriting.

Recommended prompts

• Clean this scanned PDF page, reduce gray background, shadows, stains, and scan noise, darken faded text, and keep the original layout unchanged.
• Make this scanned page easier to read with minimal changes: gently brighten the paper, improve text contrast, reduce visible scanner noise, and preserve handwriting, stamps, tables, and marks.
• Apply a conservative cleanup: improve readability, reduce scanner artifacts, and preserve the original layout, handwriting, stamps, tables, and marks.

FAQ