Unprotect

Unprotect()

Removes protection from the document regardless of the password.

public void Unprotect()

Remarks

This method unprotects the document even if it has a protection password.

Note that document protection is different from write protection. Write protection is specified using the WriteProtection.

Examples

Shows how to protect and unprotect a document.

Document doc = new Document();
doc.Protect(ProtectionType.ReadOnly, "password");

Assert.AreEqual(ProtectionType.ReadOnly, doc.ProtectionType);

// If we open this document with Microsoft Word intending to edit it,
// we will need to apply the password to get through the protection.
doc.Save(ArtifactsDir + "Document.Protect.docx");

// Note that the protection only applies to Microsoft Word users opening our document.
// We have not encrypted the document in any way, and we do not need the password to open and edit it programmatically.
Document protectedDoc = new Document(ArtifactsDir + "Document.Protect.docx");

Assert.AreEqual(ProtectionType.ReadOnly, protectedDoc.ProtectionType);

DocumentBuilder builder = new DocumentBuilder(protectedDoc);
builder.Writeln("Text added to a protected document.");
// There are two ways of removing protection from a document.
// 1 - With no password:
doc.Unprotect();

Assert.AreEqual(ProtectionType.NoProtection, doc.ProtectionType);

doc.Protect(ProtectionType.ReadOnly, "NewPassword");

Assert.AreEqual(ProtectionType.ReadOnly, doc.ProtectionType);

doc.Unprotect("WrongPassword");

Assert.AreEqual(ProtectionType.ReadOnly, doc.ProtectionType);

// 2 - With the correct password:
doc.Unprotect("NewPassword");

Assert.AreEqual(ProtectionType.NoProtection, doc.ProtectionType);

See Also

Unprotect(string)

Removes protection from the document if a correct password is specified.

public bool Unprotect(string password)
ParameterTypeDescription
passwordStringThe password to unprotect the document with.

Return Value

true if a correct password was specified and the document was unprotected.

Remarks

This method unprotects the document only if a correct password is specified.

Note that document protection is different from write protection. Write protection is specified using the WriteProtection.

Examples

Shows how to protect and unprotect a document.

Document doc = new Document();
doc.Protect(ProtectionType.ReadOnly, "password");

Assert.AreEqual(ProtectionType.ReadOnly, doc.ProtectionType);

// If we open this document with Microsoft Word intending to edit it,
// we will need to apply the password to get through the protection.
doc.Save(ArtifactsDir + "Document.Protect.docx");

// Note that the protection only applies to Microsoft Word users opening our document.
// We have not encrypted the document in any way, and we do not need the password to open and edit it programmatically.
Document protectedDoc = new Document(ArtifactsDir + "Document.Protect.docx");

Assert.AreEqual(ProtectionType.ReadOnly, protectedDoc.ProtectionType);

DocumentBuilder builder = new DocumentBuilder(protectedDoc);
builder.Writeln("Text added to a protected document.");
// There are two ways of removing protection from a document.
// 1 - With no password:
doc.Unprotect();

Assert.AreEqual(ProtectionType.NoProtection, doc.ProtectionType);

doc.Protect(ProtectionType.ReadOnly, "NewPassword");

Assert.AreEqual(ProtectionType.ReadOnly, doc.ProtectionType);

doc.Unprotect("WrongPassword");

Assert.AreEqual(ProtectionType.ReadOnly, doc.ProtectionType);

// 2 - With the correct password:
doc.Unprotect("NewPassword");

Assert.AreEqual(ProtectionType.NoProtection, doc.ProtectionType);

See Also

Document.UnlinkFields Document.UpdateActualReferenceMarks