Locking watermark in word processing document

There 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 when 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.

setLockType() method has been added to WordProcessingWatermarkBaseOptions class (and all descendants) to set any of the above-mentioned lock types. WordProcessingLockType enum is used to define the lock type. The following code samples show how to lock watermark in different scenarios.

Adding watermark to all pages

This example uses WordProcessingWatermarkPagesOptions with empty setPageNumbers().

advanced_usage.add_watermarks_to_word_processing.WordProcessingAddLockedWatermarkToAllPages

WordProcessingLoadOptions loadOptions = new WordProcessingLoadOptions();                                   
// Constants.InDocumentDocx is an absolute or relative path to your document. Ex: "C:\\Docs\\document.docx"
Watermarker watermarker = new Watermarker(Constants.InDocumentDocx, loadOptions);                          
                                                                                                           
TextWatermark watermark = new TextWatermark("Watermark text", new Font("Arial", 19));                      
watermark.setForegroundColor(Color.getRed());                                                              
                                                                                                           
WordProcessingWatermarkPagesOptions options = new WordProcessingWatermarkPagesOptions();                   
options.setLocked(true);                                                                                   
options.setLockType(WordProcessingLockType.AllowOnlyFormFields);                                           
                                                                                                           
// To protect with password                                                                                
//options.setPassword("7654321");                                                                          
                                                                                                           
watermarker.add(watermark, options);                                                                       
                                                                                                           
watermarker.save(Constants.OutDocumentDocx);                                                               
                                                                                                           
watermarker.close();                                                                                       

Adding watermark to particular pages

This example uses WordProcessingWatermarkPagesOptions calling setPageNumbers() with numbers of two pages.

advanced_usage.add_watermarks_to_word_processing.WordProcessingAddLockedWatermarkToParticularPages

WordProcessingLoadOptions loadOptions = new WordProcessingLoadOptions();                                   
// Constants.InDocumentDocx is an absolute or relative path to your document. Ex: "C:\\Docs\\document.docx"
Watermarker watermarker = new Watermarker(Constants.InDocumentDocx, loadOptions);                          
                                                                                                           
TextWatermark watermark = new TextWatermark("Watermark text", new Font("Arial", 19));                      
watermark.setForegroundColor(Color.getRed());                                                              
                                                                                                           
WordProcessingWatermarkPagesOptions options = new WordProcessingWatermarkPagesOptions();                   
options.setPageNumbers(new int[] { 1, 3 });                                                                
options.setLocked(true);                                                                                   
options.setLockType(WordProcessingLockType.AllowOnlyComments);                                             
                                                                                                           
// To protect with password                                                                                
//options.Password = "7654321";                                                                            
                                                                                                           
watermarker.add(watermark, options);                                                                       
                                                                                                           
watermarker.save(Constants.OutDocumentDocx);                                                               
                                                                                                           
watermarker.close();                                                                                       

Adding watermark to a section

This example uses WordProcessingWatermarkSectionOptions calling setSectionIndex().

advanced_usage.add_watermarks_to_word_processing.WordProcessingAddLockedWatermarkToSection

WordProcessingLoadOptions loadOptions = new WordProcessingLoadOptions();                                   
// Constants.InDocumentDocx is an absolute or relative path to your document. Ex: "C:\\Docs\\document.docx"
Watermarker watermarker = new Watermarker(Constants.InDocumentDocx, loadOptions);                          
                                                                                                           
TextWatermark watermark = new TextWatermark("Watermark text", new Font("Arial", 19));                      
watermark.setForegroundColor(Color.getRed());                                                              
                                                                                                           
WordProcessingWatermarkSectionOptions options = new WordProcessingWatermarkSectionOptions();               
options.setSectionIndex(0);                                                                                
options.setLocked(true);                                                                                   
options.setLockType(WordProcessingLockType.ReadOnlyWithEditableContent);                                   
                                                                                                           
// To protect with password                                                                                
//options.setPassword("7654321");                                                                          
                                                                                                           
watermarker.add(watermark, options);                                                                       
                                                                                                           
watermarker.save(Constants.OutDocumentDocx);                                                               
                                                                                                           
watermarker.close();                                                                                       

More resources

GitHub examples

You may easily run the code above and see the feature in action in our GitHub examples:

Free online document watermarking App

Along with full featured Java library we provide simple, but powerful free Apps.

You are welcome to add watermark to PDF, DOC, DOCX, PPT, PPTX, XLS, XLSX, Emails and more with our free online Free Online Document Watermarking App.