blackline

Original technical document

Blackline refers to a document comparison showing changes between versions, with deletions and additions marked—typically deletions struck through and additions underlined.

The term comes from legal and business contexts where tracking revisions matters: Send me a blackline against the last draft.

As a verb, to blackline is to produce such a comparison: Can you blackline these two contracts?

construction

redline

Editorial revision marking

blueprint · specification · as-built · annotation · correction · CAD · submittal · contractor · documentation · architectural

document-comparison

redline

Editorial revision marking

diff · amendment · original · edited · contract · legal · version · strikethrough · modification · review

printing

proof

Demonstration of truth

reproduction · blueprint · whiteprint · copy · duplication · archive · tracing · overlay · reprographics · photocopy

editorial

redaction

Obscuring sensitive text

strike-out · deletion · removal · sanitized · confidential · restricted · suppressed · sealed · withheld · hidden

Opposites
document state/cleanliness

blacklineclean copy

Corrected final draft

clean version · final version · original · fair copy · baseline

document comparison function

blacklinesource document

Original referenced material

reproduction/printing method

blacklineblueline

Hockey rink divider

whiteprint · blueprint · digital print

Family

blacklist, blacklisted, blacklisting, blacklines

Familiarity
Top 1,000,000
Profile
Used worldwide · Timeless · Concrete · Rated G