Workbook.ExportToPdfAsync(String, PdfExportOptions, IEnumerable<String>, CancellationToken) Method

SECURITY-RELATED CONSIDERATIONS

Using file paths sourced from untrusted input may expose unauthorized files or allow unintended file access. Always validate and normalize all external paths to prevent path manipulation.

Defines export options and asynchronously exports the specified sheets to the file in PDF format.

You need a license for the DevExpress Office File API Subscription or DevExpress Universal Subscription to use this method in production code.

Namespace : DevExpress.Spreadsheet

Assembly : DevExpress.Docs.v25.2.dll

NuGet Package : DevExpress.Document.Processor

csharp

public Task ExportToPdfAsync(
    string fileName,
    PdfExportOptions options,
    IEnumerable<string> sheetNames,
    CancellationToken cancellationToken
)

Public Function ExportToPdfAsync(
    fileName As String,
    options As PdfExportOptions,
    sheetNames As IEnumerable(Of String),
    cancellationToken As CancellationToken
) As Task

Parameters

Name	Type	Description
fileName	String

The file name (including the full path) for the created PDF file.

| | options | PdfExportOptions |

Specifies export options.

| | sheetNames | IEnumerable<String> |

Lists the names of the sheets to be saved in PDF format.

| | cancellationToken | CancellationToken |

An object used to trace the requests to cancel the operation.

Returns

Type	Description
Task

An object that represents the asynchronous export operation.

Remarks

Important

Take into account the following when you call this method:

The events fired by this method call may occur in a different thread than the target operation.
The operation is not thread safe (the document should not be accessed simultaneously by different threads). Wait until the operation is completed before you continue to work with the document (for example, use the await operator).

Calculate Formulas Before Export

The default calculation mode for a Workbook is Manual. This mode implies that the Spreadsheet does not recalculate formulas before it generates a PDF document. Call the Workbook.Calculate or Workbook.CalculateFull method to calculate all formulas in the workbook before you export it to PDF.

Example

The following code snippet asynchronously loads the specified XLSX document and exports its Sheet1 and Sheet2 worksheets as a PDF file with the specified settings:

C#
VB.NET

csharp

private async void ExportToPdf(object sender, RoutedEventArgs e) {
    PdfExportOptions options = new PdfExportOptions();
    options.DocumentOptions.Author = "John Doe";
    options.DocumentOptions.Title = "Breakeven Analysis";
    options.ImageQuality = PdfJpegImageQuality.Medium;
    options.ExportBookmarks = false;

    using (CancellationTokenSource source = new CancellationTokenSource(10000)) {
        using (Workbook workbook = new Workbook()) {
            try {
                await workbook.LoadDocumentAsync("BreakevenAnalysis.xlsx");
                await workbook.ExportToPdfAsync("Exported_Document.pdf", options, new List<string>() { "Sheet1", "Sheet2" }, source.Token);
            }
            catch (OperationCanceledException) {
                // Your code to handle cancellation.
            }
        }
    }
}

Private Async Sub ExportToPdf(sender As Object, e As RoutedEventArgs)
    Dim options As New PdfExportOptions()
    options.DocumentOptions.Author = "John Doe"
    options.DocumentOptions.Title = "Breakeven Analysis"
    options.ImageQuality = PdfJpegImageQuality.Medium
    options.ExportBookmarks = False

    Using source As New CancellationTokenSource(10000)
        Using workbook As New Workbook()
            Try
                Await workbook.LoadDocumentAsync("BreakevenAnalysis.xlsx")
                Await workbook.ExportToPdfAsync("Exported_Document.pdf", options, New List(Of String) From {"Sheet1", "Sheet2"}, source.Token)

            Catch ex As OperationCanceledException
                ' Your code to handle cancellation.
            End Try
        End Using
    End Using
End Sub