DOC Document Watermarking with C#

Wordize for .NET is a professional solution for protecting DOC documents with watermarks. The Watermarker class enables C# developers to add corporate branding to documents and control confidential DOC material distribution through text and image watermark integration. Watermark addition ensures consistent DOC document branding, copyright protection, and file source tracking capabilities.

Key Features:

Text watermarks - the Watermarker.SetText() method adds customizable text overlays to DOC with font, color, size, rotation angle, and transparency control through TextWatermarkOptions
Image watermarks - the Watermarker.SetImage() method integrates logos and images (PNG, JPG, SVG) into DOC with scaling, transparency, and positioning settings through ImageWatermarkOptions
Flexible watermark positioning on pages: center, corners, diagonal, or custom coordinates
Graphics format export capability - the SetWatermarkToImages() method converts protected DOC document pages into image sets
Fluent API support for watermarking operations through WatermarkerContext and method chaining, enhancing C# code readability

Use Cases:

Automatic addition of company logos to all outgoing DOC documents for enhanced brand recognition
Marking confidential DOC materials, technical documentation, and copyrighted works to prevent unauthorized use
Adding "DRAFT", "APPROVED", "CONFIDENTIAL" labels for clear DOC document status identification at various approval stages
Integration of copyright notices, trademark, and legal restriction notifications into DOC to ensure legislative compliance
Adding recipient names, document numbers, or timestamps to create unique file versions
DOC document marking with different access levels for information distribution control within organizations

Test the programmatic document watermarking capabilities using the interactive online demo presented on this page. Upload your DOC document, select the watermark type (text or image), run the operation, and download the result with integrated watermarks. The provided C# code snippet is ready for use in your .NET project.

Run code

Upload document

Watermark Text

Select output format from the list

using Wordize.Watermarking;

Watermarker.SetText("Input.doc", "Output.doc", "Text");

										using Wordize.Watermarking;

Watermarker.SetText("{{input1}}", "{{output}}", "{{text1}}");

										using Wordize.Watermarking;
using Wordize.Saving;

var imageStreams = Watermarker.SetWatermarkToImages("{{input1}}", new ImageSaveOptions(SaveFormat.{{saveFormat}}), "{{text1}}");

foreach (var (stream, page) in imageStreams.Select((s, i) => (s, i)))
{
    using var _ = stream;
    stream.Position = 0;
    
    using var file = File.Create($"Output_{page + 1}.{{outputExt}}");
    stream.CopyTo(file);
}

					
using Wordize.Watermarking;

Watermarker.SetImage("Input.doc", "Output.doc", "Watermark.jpg");

										using Wordize.Watermarking;

Watermarker.SetImage("{{input1}}", "{{output}}", "{{input2}}");

										using Wordize.Watermarking;
using Wordize.Saving;

byte[] watermarkImageBytes = File.ReadAllBytes("{{input2}}");
var imageStreams = Watermarker.SetWatermarkToImages("{{input1}}", new ImageSaveOptions(SaveFormat.{{saveFormat}}), watermarkImageBytes);

foreach (var (stream, page) in imageStreams.Select((s, i) => (s, i)))
{
    using var _ = stream;
    stream.Position = 0;
    
    using var file = File.Create($"Output_{page + 1}.{{outputExt}}");
    stream.CopyTo(file);
}

					

Run code

How to programmatically protect DOC with watermark

1

Connect Wordize for .NET to your development project

Connect Wordize SDK to your .NET project
2

Programmatically add watermark to DOC with C#

Call the Watermarker.SetText() method to insert a text watermark or Watermarker.SetImage() for an image watermark, specifying the DOC document and watermark properties as parameters
3

Get protected DOC document

Get the DOC document with the added watermark