Source: https://restorebunny.com/guides/document-scan-color-vs-grayscale/

# Color vs Grayscale for Document Scans: Preserve What Matters

Choose color when it carries information such as annotations, stamps or different inks. Grayscale can be practical for a delivery copy when the document's meaning and legibility remain intact.

Document capture2 min readUpdated 19 October 2026

## Put the checklist to work

Use the related browser utility on a working copy, then inspect the result. No signup is required.

[Compare a monochrome copy](<https://restorebunny.com/tools/black-and-white-image/>)Free · runs in your browser · no signup

Quick answer

## The short version

Choose color when it carries information such as annotations, stamps or different inks. Grayscale can be practical for a delivery copy when the document's meaning and legibility remain intact.

## A capture or editing plan

Inspect a representative page before choosing a batch setting. Identify colored marks that distinguish authors, changes or categories. Compare a color and grayscale test at the intended viewing size, then check pale pencil and small text separately. Keep a fuller source capture when the delivery workflow permits a smaller derivative. Record the chosen settings for the rest of the batch.

## When to change the approach

Do not remove color merely to reduce bytes if the distinction between marks depends on it. A black-and-white threshold can lose faint information differently from grayscale.

## Worked planning example

Planning example: Red corrections and black original text become similar in a grayscale copy. Retain a color master and choose a delivery format that still communicates which marks were corrections.

## If the first attempt fails

When a grayscale copy hides an annotation, stamp or distinction between inks, retain a color reference and compare the actual lost information. File size alone should not decide which version becomes the master. Check the intended reading task and preserve the version that supports it. A grayscale access copy can remain useful, but label it so it is not confused with the fuller capture.

## Before you finish

1. Identify information carried by color.
2. Compare pale marks in both tests.
3. Keep source and delivery settings separate.

## FAQs

What should I check first for scan documents color or grayscale?

Identify information carried by color. Compare pale marks in both tests. Keep source and delivery settings separate.

## Sources

Sources for technical facts and documented capabilities. Worked scenarios are hypothetical planning examples.

- U.S. National Archives: [Digitizing family papers and photographs](<https://www.archives.gov/preservation/family-archives/digitizing>)

## Related

- [Compare a monochrome copy](<https://restorebunny.com/tools/black-and-white-image/>)
- [Keep Double-Sided Document Scans in the Correct Order](<https://restorebunny.com/guides/duplex-document-page-order/>)
- [Choose Document Scan Resolution by Testing the Smallest Text](<https://restorebunny.com/guides/small-text-document-resolution-test/>)
- [Browse all photo guides](<https://restorebunny.com/guides/>)

## Ready to check your working copy?

Use the related browser utility on a working copy, then inspect the result. No signup is required.

[Compare a monochrome copy](<https://restorebunny.com/tools/black-and-white-image/>)

RestoreBunny

Photo workflow notes and editorial examples

Guides follow our [editorial policy](<https://restorebunny.com/editorial-policy/>) for sourcing, product claims, AI limitations, updates, and corrections.