---
title: "Bank statement data extraction with C# | Nutrient .NET SDK"
canonical_url: "https://www.nutrient.io/guides/dotnet/extraction/bank-statements/"
md_url: "https://www.nutrient.io/guides/dotnet/extraction/bank-statements.md"
last_updated: "2026-05-21T17:12:02.203Z"
description: "Learn how to extract key-value pairs from bank statements using C# and Nutrient .NET SDK’s (formerly GdPicture.NET) powerful optical character recognition (OCR) capabilities."
---

# Extract data from bank statements using C#

Nutrient.NET SDK’s (formerly GdPicture.NET) key-value pair (KVP) extraction engine enables you to recognize related data items in a document and export them to an external destination such as a spreadsheet.

To extract data items from a bank statement, follow the steps below:

1. Create a `GdPictureOCR` object and a `GdPictureImaging` object.

2. Select the bank statement by passing its path to the `CreateGdPictureImageFromFile` method of the `GdPictureImaging` object.

3. Configure the OCR process with the `GdPictureOCR` object in the following way:
   - Set the bank statement with the `SetImage` method.
   - Set the path to the OCR resource folder with the `ResourceFolder` property. The default language resources are located in `GdPicture.NET 14\Redist\OCR`. For more information on adding language resources, see the [language support] guide.
   - With the `AddLanguage` method, add the language resources that Nutrient.NET SDK uses to recognize text in the image. This method takes a member of the `OCRLanguage` enumeration.

4. Run the OCR process with the `RunOCR` method of the `GdPictureOCR` object.

5. Get the number of key-value pairs detected during the OCR process with the `GetKeyValuePairCount` method of the `GdPictureOCR` object, and loop through them.

6. Get the key-value pairs, the data types, and the confidence scores with the following methods:
   - [`GetKeyValuePairKeyString`](https://www.nutrient.io/api/gdpicture/GdPicture.NET.14.API~GdPicture14.GdPictureOCR~GetKeyValuePairKeyString.html)
   - [`GetKeyValuePairValueString`](https://www.nutrient.io/api/gdpicture/GdPicture.NET.14.API~GdPicture14.GdPictureOCR~GetKeyValuePairValueString.html)
   - [`GetKeyValuePairDataType`](https://www.nutrient.io/api/gdpicture/GdPicture.NET.14.API~GdPicture14.GdPictureOCR~GetKeyValuePairDataType.html)
   - [`GetKeyValuePairConfidence`](https://www.nutrient.io/api/gdpicture/GdPicture.NET.14.API~GdPicture14.GdPictureOCR~GetKeyValuePairConfidence.html)

7. Write the output to the console.

8. Release unnecessary resources.

The example below retrieves key-value pairs from the following bank statement.

[Download the sample bank statement](/images/guides/dotnet/extraction/key-value-pairs/bank.png) and run the code below, or [check out our demo](https://www.nutrient.io/demo/data-extraction).

=

### C#

```csharp

using GdPictureOCR gdpictureOCR = new GdPictureOCR();
using GdPictureImaging gdpictureImaging = new GdPictureImaging();
// Load the source document.
int imageId = gdpictureImaging.CreateGdPictureImageFromFile(@"C:\temp\source.png");
// Configure the OCR process.
gdpictureOCR.ResourceFolder = @"C:\GdPicture.NET 14\Redist\OCR";
gdpictureOCR.AddLanguage(OCRLanguage.English);
gdpictureOCR.SetImage(imageId);
// Run the OCR process.
string ocrResultId = gdpictureOCR.RunOCR();
string keyValuePairsData = "";
for (int pairIndex = 0; pairIndex < gdpictureOCR.GetKeyValuePairCount(ocrResultId); pairIndex++)
{
    keyValuePairsData += $"| Key: {gdpictureOCR.GetKeyValuePairKeyString(ocrResultId, pairIndex)} | " +
                         $"Value: {gdpictureOCR.GetKeyValuePairValueString(ocrResultId, pairIndex)} | " +
                         $"Document Type: {gdpictureOCR.GetKeyValuePairDataType(ocrResultId, pairIndex).ToString()} | " +
                         $"Confidence Level: {Math.Round(gdpictureOCR.GetKeyValuePairConfidence(ocrResultId, pairIndex), 1).ToString()}% |\n";
}
// Write the output to the console.
Console.WriteLine(keyValuePairsData);
// Release unnecessary resources.
gdpictureImaging.ReleaseGdPictureImage(imageId);
gdpictureOCR.ReleaseOCRResults();

```

### VB.NET

```vb

Using gdpictureOCR As GdPictureOCR = New GdPictureOCR()
Using gdpictureImaging As GdPictureImaging = New GdPictureImaging()
    ' Load the source document.
    Dim imageId As Integer = gdpictureImaging.CreateGdPictureImageFromFile("C:\temp\source.png")
    ' Configure the OCR process.
    gdpictureOCR.ResourceFolder = "C:\GdPicture.NET 14\Redist\OCR"
    gdpictureOCR.AddLanguage(OCRLanguage.English)
    gdpictureOCR.SetImage(imageId)
    ' Run the OCR process.
    Dim ocrResultId As String = gdpictureOCR.RunOCR()
    Dim keyValuePairsData = ""
    For pairIndex As Integer = 0 To gdpictureOCR.GetKeyValuePairCount(ocrResultId) - 1
        keyValuePairsData += $"| Key: {gdpictureOCR.GetKeyValuePairKeyString(ocrResultId, pairIndex)} | Value: {gdpictureOCR.GetKeyValuePairValueString(ocrResultId, pairIndex)} | Document Type: {gdpictureOCR.GetKeyValuePairDataType(ocrResultId, pairIndex).ToString()} | Confidence Level: {Math.Round(gdpictureOCR.GetKeyValuePairConfidence(CStr(ocrResultId), CInt(pairIndex)), CInt(1)).ToString()}% |" & vbLf
    Next
    ' Write the output to the console.
    Console.WriteLine(keyValuePairsData)
    ' Release unnecessary resources.
    gdpictureImaging.ReleaseGdPictureImage(imageId)
    gdpictureOCR.ReleaseOCRResults()
End Using
End Using

```

=

#### Used methods and properties

- [`AddLanguage`](/api/gdpicture/GdPicture.NET.14.API~GdPicture14.GdPictureOCR~AddLanguage.html)

- [`CreateGdPictureImageFromFile`](/api/gdpicture/GdPicture.NET.14.API~GdPicture14.GdPictureImaging~CreateGdPictureImageFromFile.html)

- [`GetKeyValuePairKeyString`]

- [`GetKeyValuePairValueString`]

- [`GetKeyValuePairDataType`]

- [`GetKeyValuePairConfidence`]

- [`ReleaseGdPictureImage`](/api/gdpicture/GdPicture.NET.14.API~GdPicture14.GdPictureImaging~ReleaseGdPictureImage.html)

- [`ReleaseOCRResults`](/api/gdpicture/GdPicture.NET.14.API~GdPicture14.GdPictureOCR~ReleaseOCRResults.html)

- [`ResourceFolder`](/api/gdpicture/GdPicture.NET.14.API~GdPicture14.GdPictureOCR~ResourceFolder.html)

- [`RunOCR`](/api/gdpicture/GdPicture.NET.14.API~GdPicture14.GdPictureOCR~RunOCR\(\).html)

- [`SetImage`](/api/gdpicture/GdPicture.NET.14.API~GdPicture14.GdPictureOCR~SetImage.html)

#### Related topics

- [Load a file](/guides/dotnet/load-a-file.md)

- [Save a file](/guides/dotnet/save-a-file.md)








Format the output to obtain the following table:

| Key            | Value                       | Document type | Confidence level |
| -------------- | --------------------------- | ------------- | ---------------- |
| IBAN           | FR7611808009101234567890147 | IBAN          | 100%             |
| Phone          | 786-315-0313                | PhoneNumber   | 100%             |
| BIC            | 12345678901                 | Number        | 66.4%            |
| Bank code      | 11808                       | Number        | 99.4%            |
| Counter code   | 00914                       | Number        | 100%             |
| Number account | 12345678901                 | Number        | 99.3%            |
| Bank key       | 47                          | Number        | 74.2%            |
| River bank     | 100                         | Number        | 74%              |
| Account owner  | David Bricklane             | String        | 100%             |
| Domiciliation  | East Bank Summerfield       | String        | 97.5%            |
---

## Related pages

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- [Extract images from PDFs in C#](/guides/dotnet/extraction/images.md)
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- [Extract invoice data with C# and OCR](/guides/dotnet/extraction/invoices.md)
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- [Extract tables from PDFs and images using C#](/guides/dotnet/extraction/tables.md)