' For complete examples and data files, please go to https://github.com/groupdocs-viewer/GroupDocs.Viewer-for-.NET
'Get Configurations
Dim config As ViewerConfig = Utilities.GetConfigurations()
' Create image handler
Dim imageHandler As New ViewerImageHandler(config)
' Guid implies that unique document name
Dim guid As String = DocumentName
'Initialize ImageOptions Object
Dim options As New ImageOptions()
' Set password if document is password protected.
If Not [String].IsNullOrEmpty(DocumentPassword) Then
options.Password = DocumentPassword
End If
' Set one page per sheet option to false for Multiple pages per sheet in Excel documents, default value of this option is true
options.CellsOptions.OnePagePerSheet = False
'Get document pages in image form
Dim Images As List(Of PageImage) = imageHandler.GetPages(guid, options)
For Each image As PageImage In Images
'Save each image at disk
Utilities.SaveAsImage(image.PageNumber + "_" + DocumentName, image.Stream)
Next