Search for Text Signatures

Introduction

In the realm of document management and authentication, the ability to efficiently search for text signatures within digital documents is paramount. GroupDocs.Signature for .NET offers a powerful solution to this need, providing developers with a comprehensive toolkit for locating text signatures within various file formats. In this tutorial, we’ll delve into the process of searching for text signatures using GroupDocs.Signature for .NET, breaking down each step to ensure a clear understanding of the implementation.

Prerequisites

Before we begin, ensure you have the following prerequisites in place:

  1. GroupDocs.Signature for .NET Library: Download and install the GroupDocs.Signature for .NET library from the releases page.
  2. Development Environment: Set up a suitable development environment, such as Visual Studio or any compatible IDE.
  3. Sample Document: Prepare a sample document containing text signatures for testing purposes.
  4. Basic Knowledge of C#: Familiarity with C# programming language is required to follow along with the tutorial.

Import Namespaces

To initiate the process, import the necessary namespaces into your C# project:

using System;
using System.Collections.Generic;
using System.IO;
using GroupDocs.Signature;
using GroupDocs.Signature.Domain;
using GroupDocs.Signature.Options;

Step 1: Load the Document

string filePath = "sample_multiple_signatures.docx";
string fileName = Path.GetFileName(filePath);
using (Signature signature = new Signature(filePath))
{

In this step, we specify the file path of the sample document containing text signatures and initialize a new instance of the Signature class.

Step 2: Configure Search Options

    TextSearchOptions options = new TextSearchOptions()
    {
        AllPages = true, // this value is set by default
    };

Here, we configure the search options for text signatures. In this example, we set AllPages property to true to search across all pages of the document.

Step 3: Perform Text Signature Search

    List<TextSignature> signatures = signature.Search<TextSignature>(options);

This step executes the search operation using the specified options and retrieves a list of TextSignature objects containing the found text signatures.

Step 4: Output Results

    Console.WriteLine($"\nSource document ['{fileName}'] contains following text signature(s).");
    foreach (TextSignature textSignature in signatures)
    {
        Console.WriteLine($"Found Text signature at page {textSignature.PageNumber} with type [{textSignature.SignatureImplementation}] and text '{textSignature.Text}'.");
    }
}

Finally, we display the results of the text signature search, iterating through each found signature and outputting its page number, signature type, and text content.

Conclusion

In this tutorial, we’ve explored the process of searching for text signatures within digital documents using GroupDocs.Signature for .NET. By following the step-by-step guide and leveraging the provided code examples, developers can efficiently integrate text signature search functionality into their .NET applications, enhancing document management and authentication capabilities.

FAQ’s

Is GroupDocs.Signature for .NET compatible with all file formats?

GroupDocs.Signature for .NET supports a wide range of file formats, including popular formats like PDF, Word, Excel, and more.

Can I customize search options for text signatures?

Yes, developers can customize various search options such as search scope, text matching criteria, and more according to their requirements.

Does GroupDocs.Signature for .NET provide support for digital signatures?

Yes, GroupDocs.Signature for .NET offers robust support for digital signatures, allowing developers to digitally sign documents with ease.

Is there a trial version available for evaluation purposes?

Yes, developers can access a free trial version of GroupDocs.Signature for .NET from the releases page.

Where can I find further assistance or support for GroupDocs.Signature for .NET?

For any queries or assistance regarding GroupDocs.Signature for .NET, you can visit the support forum.

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