DocumentImageManager Class
Summary
Contains the image functionality associated with a DocumentReader.
Syntax
public class DocumentImageManager
Public Class DocumentImageManager
public ref class DocumentImageManager
Example
Public Sub DocumentImageManagerExample()
' Get a document from the user
Dim documentFileName As String
Using openDlg As New OpenFileDialog()
If openDlg.ShowDialog() <> System.Windows.Forms.DialogResult.OK Then
Return
End If
documentFileName = openDlg.FileName
End Using
' Load the document at 300 DPI for high quality rendering
Dim loadOptions As New DocumentReaderLoadOptions()
loadOptions.Resolution = 300
Using reader As DocumentReader = DocumentReader.Create(documentFileName, loadOptions)
' Ask the user for the output TIFF file name
Dim tiffFileName As String
Using saveDlg As New SaveFileDialog()
saveDlg.Filter = "TIFF files|*.tif;*.tiff|All Files|*.*"
If saveDlg.ShowDialog() <> System.Windows.Forms.DialogResult.OK Then
Return
End If
tiffFileName = saveDlg.FileName
If File.Exists(tiffFileName) Then
' Because we will append pages, delete the file if it already exists
File.Delete(tiffFileName)
End If
End Using
' Loop through all the pages and get a render of each
For Each page As DocumentReaderPage In reader.Pages
Using pageImage As RasterImage = reader.ImageManager.GetPageImage(page)
' Save it to the output file, we can use the RasterCodecs object
' of the reader
reader.RasterCodecsInstance.Save(pageImage, tiffFileName, RasterImageFormat.TifJpeg, _
24, 1, 1, -1, CodecsSavePageMode.Append)
End Using
Next
End Using
End Sub
public void DocumentImageManagerExample()
{
// Get a document from the user
string documentFileName;
using(OpenFileDialog openDlg = new OpenFileDialog())
{
if(openDlg.ShowDialog() != DialogResult.OK)
{
return;
}
documentFileName = openDlg.FileName;
}
// Load the document at 300 DPI for high quality rendering
DocumentReaderLoadOptions loadOptions = new DocumentReaderLoadOptions();
loadOptions.Resolution = 300;
using(DocumentReader reader = DocumentReader.Create(documentFileName, loadOptions))
{
// Ask the user for the output TIFF file name
string tiffFileName;
using(SaveFileDialog saveDlg = new SaveFileDialog())
{
saveDlg.Filter = "TIFF files|*.tif;*.tiff|All Files|*.*";
if(saveDlg.ShowDialog() != DialogResult.OK)
{
return;
}
tiffFileName = saveDlg.FileName;
if(File.Exists(tiffFileName))
{
// Because we will append pages, delete the file if it already exists
File.Delete(tiffFileName);
}
}
// Loop through all the pages and get a render of each
foreach(DocumentReaderPage page in reader.Pages)
{
using(RasterImage pageImage = reader.ImageManager.GetPageImage(page))
{
// Save it to the output file, we can use the RasterCodecs object
// of the reader
reader.RasterCodecsInstance.Save(pageImage, tiffFileName, RasterImageFormat.TifJpeg, 24, 1, 1, -1, CodecsSavePageMode.Append);
}
}
}
}
Requirements
Target Platforms: Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2
