Task<string> TranslateAsync(
    PdfDocumentProcessor processor,
    PdfDocumentArea area,
    CultureInfo culture,
    CancellationToken cancellationToken = default(CancellationToken)
)

Function TranslateAsync(
    processor As PdfDocumentProcessor,
    area As PdfDocumentArea,
    culture As CultureInfo,
    cancellationToken As CancellationToken = Nothing
) As Task(Of String)

using DevExpress.AIIntegration;
using DevExpress.AIIntegration.Docs;
using DevExpress.Drawing;
using DevExpress.Pdf;
using Microsoft.Extensions.AI;
using System.Drawing;

// Check "Register Service" section for implementation code
var docProcessingService = 
    defaultAIExtensionsContainer.CreateAIDocProcessingService();

using var pdfDocumentProcessor = new PdfDocumentProcessor();
pdfDocumentProcessor.LoadDocument("Documents/FirstLookExported.pdf");

// Obtain the first page area
var pageBox = pdfDocumentProcessor.Document.Pages[0].CropBox;
PdfDocumentPosition pagePosition1 = new PdfDocumentPosition(1, pageBox.TopLeft);
PdfDocumentPosition pagePosition2 = new PdfDocumentPosition(1, pageBox.BottomRight);
var pageContentArea = PdfDocumentArea.Create(pagePosition1, pagePosition2);

// Translate the page content to Spanish
string translation = await docProcessingService.TranslateAsync(
    pdfDocumentProcessor, 
    pageContentArea, 
    new System.Globalization.CultureInfo("es-ES"));

// Insert a new page and add the translated text
PdfPage page = pdfDocumentProcessor.InsertNewPage(1, PdfPaperSize.Letter);
PdfRectangle pageSize = page.CropBox;
AddContentToPage(pdfDocumentProcessor, page, pageSize, translation);

// Save the modified document
pdfDocumentProcessor.SaveDocument("result.pdf");

// This method draws text on the inserted page
void AddContentToPage(
    PdfDocumentProcessor pdfDocumentProcessor, 
    PdfPage page,
    PdfRectangle pageSize, 
    string text)
{
    using (PdfGraphics graphics = pdfDocumentProcessor.CreateGraphicsWorldSystem())
    {
        using (var textBrush = new DXSolidBrush(Color.FromArgb(255, Color.DarkOrange)))
        {
            DXFont font = new DXFont("Segoe UI", 12, DXFontStyle.Regular);

            // Calculate text size
            SizeF textSize = graphics.MeasureString(
                text, 
                font, 
                new PdfStringFormat());

            // Calculate an area to draw the text
            PointF textPoint = new PointF(0, (float)(pageSize.Height - 10));
            RectangleF rectangle = new RectangleF(
                0, 10,
                (float)pageSize.Width,
                (float)(pageSize.Height / 2));

            // Draw text at the calculated area
            graphics.DrawString(text, font, textBrush, rectangle);
            graphics.AddToPageForeground(page);
        }
    }
}

Imports DevExpress.AIIntegration
Imports DevExpress.AIIntegration.Docs
Imports DevExpress.Drawing
Imports DevExpress.Pdf
Imports Microsoft.Extensions.AI
Imports System.Drawing
Imports System.Globalization

' Check "Register Service" section for implementation code
var docProcessingService = 
    defaultAIExtensionsContainer.CreateAIDocProcessingService()

Using pdfDocumentProcessor As New PdfDocumentProcessor()
    pdfDocumentProcessor.LoadDocument("Documents/FirstLookExported.pdf")

    ' Obtain the first page area
    Dim pageBox = pdfDocumentProcessor.Document.Pages(0).CropBox
    Dim pagePosition1 As New PdfDocumentPosition(1, pageBox.TopLeft)
    Dim pagePosition2 As New PdfDocumentPosition(1, pageBox.BottomRight)
    Dim pageContentArea = PdfDocumentArea.Create(pagePosition1, pagePosition2)

    ' Translate the page content to Spanish
    Dim translation As String = Await docProcessingService.TranslateAsync(
        pdfDocumentProcessor, 
        pageContentArea, 
        New CultureInfo("es-ES"))

    ' Insert a new page and add the translated text
    Dim page As PdfPage = pdfDocumentProcessor.InsertNewPage(1, PdfPaperSize.Letter)
    Dim pageSize As PdfRectangle = page.CropBox
    AddContentToPage(pdfDocumentProcessor, page, pageSize, translation)

    ' Save the modified document
    pdfDocumentProcessor.SaveDocument("result.pdf")
End Using

' This method draws text on the inserted page
Private Sub AddContentToPage(
    pdfDocumentProcessor As PdfDocumentProcessor, 
    page As PdfPage,
    pageSize As PdfRectangle, 
    text As String)

    Using graphics As PdfGraphics = pdfDocumentProcessor.CreateGraphicsWorldSystem()
        Using textBrush As New DXSolidBrush(Color.FromArgb(255, Color.DarkOrange))
            Dim font As New DXFont("Segoe UI", 12, DXFontStyle.Regular)

            ' Calculate text size
            Dim textSize As SizeF = graphics.MeasureString(
                text, 
                font, 
                New PdfStringFormat())

            ' Calculate an area to draw the text
            Dim textPoint As New PointF(0, CSng(pageSize.Height - 10))
            Dim rectangle As New RectangleF(
                0, 
                10, 
                CSng(pageSize.Width), 
                CSng(pageSize.Height / 2))

            ' Draw text at the calculated area
            graphics.DrawString(text, font, textBrush, rectangle)
            graphics.AddToPageForeground(page)
        End Using
    End Using
End Sub

var pageArea = PdfDocumentArea.Create(pagePosition1, pagePosition2);
translation = await docProcessingService.TranslateAsync(pdfDocumentProcessor, pageArea, language);
break;