Public Overloads Sub SaveStamp( _
   ByVal image As RasterImage, _
   ByVal fileName As String, _
   ByVal firstPage As Integer, _
   ByVal lastPage As Integer, _
   ByVal firstSavePageNumber As Integer, _
   ByVal pageMode As CodecsSavePageMode _
) 

Visual Basic (Usage)	Copy Code
Dim instance As RasterCodecs Dim image As RasterImage Dim fileName As String Dim firstPage As Integer Dim lastPage As Integer Dim firstSavePageNumber As Integer Dim pageMode As CodecsSavePageMode   instance.SaveStamp(image, fileName, firstPage, lastPage, firstSavePageNumber, pageMode)

public void SaveStamp( 
   RasterImage image,
   string fileName,
   int firstPage,
   int lastPage,
   int firstSavePageNumber,
   CodecsSavePageMode pageMode
)

public:
void SaveStamp( 
   RasterImage image,
   String^ fileName,
   int firstPage,
   int lastPage,
   int firstSavePageNumber,
   CodecsSavePageMode pageMode
) 

Parameters

image

The RasterImage object that contain the thumbnail (stamp) image.

fileName

A String containing the name of an existing image file.

firstPage

1-based index of the first page in image to save.

lastPage

1-based index of the last page in image to save. Pass -1 to save from firstPage to the last page in image.

firstSavePageNumber

1-based index of the first output page. If the output file already exists, then this parameter lets you control which pages to overwrite and/or where to append the new pages.

pageMode

Determines how to handle the page when saving to multipage formats. This can be one of the following:

Value	Meaning
CodecsSavePageMode.Append	Append the new page(s) to the end of the file. If the file does not exist, this option will create the file and add the pages to it. firstSavePageNumber is not used.
CodecsSavePageMode.Insert	Insert the new page(s) at the index specified by firstSavePageNumber.
CodecsSavePageMode.Replace	Replace the page(s) starting at the index specified by firstSavePageNumber.
CodecsSavePageMode.Overwrite	Overwrite the page(s) starting at the index specified by firstSavePageNumber.
CodecsSavePageMode.Append	Append the new page(s) to the end of the file. If the file does not exist, this option will create the file and add the pages to it.

This example will add a stamp to an existing file before reading it back

Visual Basic

Copy Code

Public Sub StampExample()    RasterCodecs.Startup()    Dim codecs As RasterCodecs = New RasterCodecs()    Dim srcFileName As String = LeadtoolsExamples.Common.ImagesPath.Path + "Image1.cmp"    Dim destFileName As String = LeadtoolsExamples.Common.ImagesPath.Path + "Image1_WithCustomStamp.cmp"    Dim stampFileName As String = LeadtoolsExamples.Common.ImagesPath.Path + "Image1_Stamp.bmp"    ' Load the source file name    Dim image As RasterImage = codecs.Load(srcFileName)    ' Save as the destination image    codecs.Save(image, destFileName, RasterImageFormat.Cmp, 24)    ' Resize the image to fit into 128 by 128 pixels keeping the aspect ratio    Dim rc As Rectangle = New Rectangle(0, 0, 128, 128)    rc = RasterImage.CalculatePaintModeRectangle(image.ImageWidth, image.ImageHeight, rc, RasterPaintSizeMode.FitAlways, RasterPaintAlignMode.Near, RasterPaintAlignMode.Near)    Dim command As SizeCommand = New SizeCommand()    command.Width = rc.Width    command.Height = rc.Height    command.Flags = RasterSizeFlags.None    command.Run(image)    ' Add the word "Stamp" on the image at the middle    Dim message As String = "Stamp"    Dim container As RasterImageGdiPlusGraphicsContainer = image.CreateGdiPlusGraphics()    Dim sf As StringFormat = New StringFormat()    sf.Alignment = StringAlignment.Center    sf.LineAlignment = StringAlignment.Center    Dim f As Font = New Font("Arial", 20, FontStyle.Bold)    container.Graphics.DrawString(message, f, Brushes.Yellow, rc, sf)    sf.Dispose()    f.Dispose()    container.Dispose()    ' Now set this image as the stamp for this file    codecs.SaveStamp(image, destFileName, 1, 1, 1, CodecsSavePageMode.Overwrite)    image.Dispose()    ' Load the stamp from the file and save it into another file    image = codecs.ReadStamp(destFileName, 1)    codecs.Save(image, stampFileName, RasterImageFormat.Bmp, 24)    image.Dispose()    ' Clean up    codecs.Dispose()    RasterCodecs.Shutdown() End Sub

C#

Copy Code

public void StampExample()  {     RasterCodecs.Startup();     RasterCodecs codecs = new RasterCodecs();       string srcFileName = LeadtoolsExamples.Common.ImagesPath.Path + "Image1.cmp";     string destFileName = LeadtoolsExamples.Common.ImagesPath.Path + "Image1_WithCustomStamp.cmp";     string stampFileName = LeadtoolsExamples.Common.ImagesPath.Path + "Image1_Stamp.bmp";       // Load the source file name     RasterImage image = codecs.Load(srcFileName);       // Save as the destination image     codecs.Save(image, destFileName, RasterImageFormat.Cmp, 24);       // Resize the image to fit into 128 by 128 pixels keeping the aspect ratio     Rectangle rc = new Rectangle(0, 0, 128, 128);     rc = RasterImage.CalculatePaintModeRectangle(        image.ImageWidth,        image.ImageHeight,        rc,        RasterPaintSizeMode.FitAlways,        RasterPaintAlignMode.Near,        RasterPaintAlignMode.Near);       SizeCommand command = new SizeCommand();     command.Width = rc.Width;     command.Height = rc.Height;     command.Flags = RasterSizeFlags.None;     command.Run(image);       // Add the word "Stamp" on the image at the middle     string message = "Stamp";       RasterImageGdiPlusGraphicsContainer container = image.CreateGdiPlusGraphics();     StringFormat sf = new StringFormat();     sf.Alignment = StringAlignment.Center;     sf.LineAlignment = StringAlignment.Center;     Font f = new Font("Arial", 20, FontStyle.Bold);     container.Graphics.DrawString(message, f, Brushes.Yellow, rc, sf);     sf.Dispose();     f.Dispose();     container.Dispose();       // Now set this image as the stamp for this file     codecs.SaveStamp(image, destFileName, 1, 1, 1, CodecsSavePageMode.Overwrite);     image.Dispose();       // Load the stamp from the file and save it into another file     image = codecs.ReadStamp(destFileName, 1);     codecs.Save(image, stampFileName, RasterImageFormat.Bmp, 24);     image.Dispose();       // Clean up     codecs.Dispose();     RasterCodecs.Shutdown();  }

The stamp will be written to last page in the file. If that page already has a stamp, it will be overwritten; If the file to which the stamp is being written does not exist, an exception will occur.

This method works for regular JPEG files and Exif JPEG files. For regular JPEG files, the stamp saved is always uncompressed and can be 8 or 24 bits per pixel. The stamp can be any width and height, but the stamp data and stamp header must completely fit in an APP0 marker. Therefore, the size must be less than 64k bytes (0xFFFF).

For Exif JPEG files, the stamps can be uncompressed or JPEG compressed and must be 24 bits per pixel. Exif JPEG stamps are supposed to be 160 x 120. However, LEADTOOLS can save and read Exif JPEG stamps of other dimensions. The stamp, along with other information such as the TIFF_HEADER, 0th IFD, 1st IFD, etc. must completely fit in an APP1 marker. Therefore, the size must be less than 64k bytes (0xFFFF).

Target Platforms: Microsoft .NET Framework 3.0, Windows XP, Windows Server 2003 family, Windows Server 2008 family

Reference