How to Clean Up Scanned Documents and Old Papers

Scanned documents - old letters, historical papers, receipts, certificates - often come out with speckled backgrounds, faded text, uneven lighting, and scanner noise. With the right cleanup workflow, these scans can become clean, readable, and archive-worthy.

Common Scanned Document Problems

• Background noise: Speckles and grain from the scanner or paper texture
• Low contrast: Faded ink on yellowed paper - text barely visible
• Uneven lighting: Darker edges or center from scanner lid pressure
• Color cast: Yellowed paper creates an overall warm tint

The Cleanup Workflow

1. Enhance: Use the Enhance tool to improve overall contrast. This makes faded text darker and backgrounds lighter.
2. Denoise: The Denoise tool removes background speckles and scanner noise. Use moderate settings - too aggressive and you'll soften the text.
3. Adjust: Use the Adjust tool to fine-tune contrast (increase), temperature (cool if yellowed), and brightness.
4. Sharpen: A light sharpening pass makes text crisper and more readable.

For OCR Processing

If you plan to run optical character recognition (OCR) on the scanned document, clean images produce dramatically better OCR accuracy:

• High contrast between text and background
• Clean, denoised background reduces false character detection
• Sharp text edges improve character recognition

Privacy for Scanned Documents

Scanned documents often contain sensitive information - financial records, legal documents, personal correspondence, identity documents. Processing these through cloud-based tools exposes this information. All COMBb2 tools process in your browser - your sensitive documents never leave your device.

Conclusion

The enhance-denoise-adjust-sharpen workflow transforms messy scans into clean, readable documents. It improves both visual quality and OCR accuracy. For old or damaged documents, this 2-minute workflow can make the difference between readable and illegible. All processing stays local in your browser.