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GroupDocs.Comparison allows you to get list of changes between source and target documents.
To get list of changes, follow these steps:
- Instantiate the Comparer object. Specify the source document path or stream.
- Call the Add method. Specify the target document path or stream.
- Call the Compare method.
- Call the GetChanges method.
The no-argument Compare() call performs the comparison in-memory without writing a result file — use it when you only need the change list and do not need to save the marked-up document.
The following code snippets show how to get list of all changes:
using GroupDocs.Comparison;
using GroupDocs.Comparison.Options;
// ...
using (Comparer comparer = new Comparer("source.docx"))
{
comparer.Add("target.docx");
comparer.Compare();
ChangeInfo[] changes = comparer.GetChanges();
foreach (ChangeInfo change in changes)
Console.WriteLine("Change Type: {0}, Page: {1}, Change ID: {2}, Text: {3}",
change.Type,
change.PageInfo.PageNumber,
change.Id,
change.Text
);
}
The result is as follows:
using GroupDocs.Comparison;
using GroupDocs.Comparison.Options;
using System.IO;
// ...
using (Comparer comparer = new Comparer(File.OpenRead("source.docx")))
{
comparer.Add(File.OpenRead("target.docx"));
comparer.Compare();
ChangeInfo[] changes = comparer.GetChanges();
foreach (ChangeInfo change in changes)
Console.WriteLine("Change Type: {0}, Page: {1}, Change ID: {2}, Text: {3}",
change.Type,
change.PageInfo.PageNumber,
change.Id,
change.Text
);
}
- Accept or reject detected changes
- Get extended information on the summary page
- Get changes coordinates
- Compare documents
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