Merge DOC Files into One Document in C#

Wordize for .NET is a professional solution for automating DOC document merging within enterprise document workflows. The Merger class enables C# developers to programmatically combine DOC files for report preparation, documentation creation, and legal transaction support.

Key Features:

The Merge() method combines multiple DOC documents into a single file with automatic format detection based on file extensions
Precise formatting control during DOC merging with three main modes: complete style merging of all DOC documents, preserving original formatting of each source, or maintaining exact layout and page structure without changes
Export capability of DOC merge results to graphic format - the MergeToImages() method returns merge results as an array of images
Fluent API support for launching DOC merge operations through MergerContext and method chaining, enhancing C# code clarity

Use Cases:

Combine individual sections, chapters, or modules into unified reports and technical documents for convenient distribution
Merge DOC files from different departments or project participants into unified presentations
Create consolidated archives from related DOC documents for storage system optimization
Combine related DOC documents, appendices, and supplements into unified packages
Merge DOC content from various sources to create catalogs and reference materials

Test the capabilities of programmatic DOC document merging using the interactive online demo presented on this page. Upload multiple DOC files, specify their merge parameters, execute the operation, and download the consolidated document for review. The provided C# code snippet is fully ready for use in your .NET project.

Run code

Upload the first document

Upload other documents

Select output format from the list

using Wordize.Merging;

Merger.Merge("Output.doc", 
    [
        "Input1.doc", 
        "Input2.doc" 
    ]);
                            using Wordize.Merging;

Merger.Merge("Output.doc", 
    [
        "Input1.doc", 
        "Input2.doc" 
    ]);
                            using Wordize.Merging;
using Wordize.Saving;

var imageStreams = Merger.MergeToImages(
    ["Input1.doc", "Input2.doc"], 
    new ImageSaveOptions(SaveFormat.Doc) { PageLayout = MultiPageLayout.Vertical(10) },
    MergeFormatMode.KeepSourceFormatting
);

using var file = File.Create($"Output.doc");
imageStreams[0].Position = 0;
imageStreams[0].CopyTo(file);
                            using Wordize.Merging;
using Wordize.Saving;

ImageSaveOptions saveOptions = new ImageSaveOptions(saveFormat);
saveOptions.PageLayout = MultiPageLayout.Vertical(10);

Merger.Create()
        .From("Input1.doc")
        .From("Input2.doc")
        .To("Output.doc", saveOptions)
        .Execute();
                            using Wordize.Merging;

Merger.Create()
        .From("Input1.doc")
        .From("Input2.doc")
        .To("Output.doc", SaveFormat.Doc)
        .Execute();
            

				    Run code
			    

How to merge multiple DOC files in C#

Connect Wordize SDK to your .NET project
Call the Merge() method, specifying the output file name and collection of input DOC files in parameters
Get the merged DOC file