GroupDocs Watermark for .NET GroupDocs.Watermark for .NET 18.6 has been released and it is available for download. The latest version has come with the feature of locking watermarks in Word documents. Furthermore, it also provides the ability to protect/unprotect the Word documents. Please continue to read more about the features added in version 18.6.

How to Lock Watermark in Word DocumentsThere might be the case when you need to lock the watermarks in a Word document to restrict the editing. To deal with such cases, GroupDocs.Watermark provides 5 variants of locking Word document after adding watermark.

  • AllowOnlyRevisions: user can only add revision marks to the document.
  • AllowOnlyComments: user can only modify comments in the document.
  • AllowOnlyFormFields: the document is split into one-page sections and locked section with watermark is added between each two adjacent document sections.
  • ReadOnly: the entire document is read-only.
  • ReadOnlyWithEditableContent: the document is read-only, but all the content except the watermark is marked as editable.

The following code sample shows how to lock watermark in a Word document.``` string inputFileName = @“d:\input.docx”; string outputFileName = @“d:\output.docx”;

using (WordsDocument doc = Document.Load(inputFileName)) { TextWatermark watermark = new TextWatermark(“Watermark text”, new Font(“Arial”, 19)); watermark.ForegroundColor = Color.Red;

WordsShapeSettings settings = new WordsShapeSettings();
settings.IsLocked = true;
settings.LockType = WordsLockType.AllowOnlyFormFields;
settings.Password = "7654321";

doc.AddWatermark(watermark, settings);



## Protect/Unprotect Word DocumentsGroupDocs.Watermark provides a simplified way of protecting the Word documents with the password. You can protect as well as unprotect the Word documents. The following protection types are supported:

*   _AllowOnlyRevisions:_ user can only add revision marks to the document.
*   _AllowOnlyComments:_ user can only modify comments in the document.
*   _AllowOnlyFormFields:_ user can only enter data in the form fields in the document.
*   _ReadOnly:_ no changes are allowed to the document.

## Protect Word DocumentThe following code sample shows how to protect a Word Document.```
using (WordsDocument doc = Document.Load(@"D:\test.doc"))
    doc.Protect(WordsProtectionType.ReadOnly, "7654321");

Unprotect DocumentThe following code sample shows how to unprotect a Word Document.```

using (WordsDocument doc = Document.Load(@“D:\test.doc”)) { doc.Unprotect(); doc.Save(); }

## Available Channels and ResourcesHere are a few channels and resources for you to download, learn, try and get technical support on GroupDocs.Watermark:

*   [Installation]( "Install from NuGet Package") - Install GroupDocs.Watermark using NuGet
*   [Documentation]( "Watermark API documentation") - API Documentation
*   [Examples]( "How to use Watermark API") - Code Examples
*   [Video Tutorials]( – YouTube Video Tutorials
*   [Product Support Forum]( - Technical Support Forum for GroupDocs.Watermark

## FeedbackAs always, we would love to hear your queries and suggestions at our [forum]( "Technical Support Forum").