What is redaction?
Last reviewed September 13, 2026
Redaction is the process of permanently removing or obscuring sensitive information in a document before it is shared, so that the protected content cannot be seen or recovered by whoever receives it. It applies when a document has to go out but only part of it should.
What redaction actually means
A contract shared with one party might contain another party’s confidential terms. A record produced in response to a request might contain personal information that must be protected. Redaction is how you share the document while withholding the sensitive parts, by removing that information rather than merely hiding it.
The word “permanently” is the important one. Real redaction removes the underlying content, so it is genuinely gone from the shared copy. This is different from drawing a black box over text in a way that still leaves the text underneath, a mistake that has embarrassed many organizations when recipients simply copied the hidden text out from beneath the box. Effective redaction means the protected information is not recoverable, not just visually covered.
Why redaction matters
Redaction sits at the intersection of two obligations that pull in opposite directions: the need to share or produce a document, and the duty to protect certain information within it, personal data, confidential terms, privileged content. Get it wrong in one direction and you withhold too much or refuse to share at all. Get it wrong in the other and you leak protected information, sometimes in a way that is discovered publicly.
For organizations handling personnel records, confidential agreements, or records subject to disclosure requests, reliable redaction is what makes it possible to be transparent where required while still protecting what must stay protected.
Redaction and the original
A well-designed approach keeps the original document intact and creates a separate redacted copy for sharing, rather than destroying the source. That way the full document remains available to those authorized to see it, the redacted version is what goes out, and the difference between them is deliberate and recorded. Combined with a chain of custody, that keeps both the disclosure and the protection defensible.
Related
Related terms: PII, audit trail, document version control. See how PaperlessZen™ handles secure external sharing of confidential documents.
Frequently asked questions
Is drawing a black box over text considered redaction?
Only if the underlying text is actually removed. A black box that leaves the original text intact underneath is not real redaction, and recipients have repeatedly copied the hidden text out from beneath exactly that kind of box. Effective redaction permanently removes the content, not just covers it visually.
Does redaction alter the original document?
It should not. A well-designed process keeps the original document intact and creates a separate redacted copy for sharing, so the full document remains available to those authorized to see it while a different, deliberately incomplete version goes out.
When is redaction typically required?
Whenever a document must be shared or produced but contains information, personal data, confidential terms, or privileged content, that must be withheld from the recipient. Common examples include responding to disclosure requests and sharing a contract with a party who should not see another party's terms.