This method inserts a page into a multipage tiff.
Parameters
Val
The image format of the inserted page
(of type Newtone.ImageKit.SaveFileType)
SaveUrl
The Tiff image into which a page will
be inserted (must be a virtual path within the scope of the web
application)
insertPage
The page number where the page is
inserted
Return Value
Returns True if successful. Returns False if unsuccessful.
Explanation
The InsertPageIntoMultipageTiff method inserts a page into a multipage tiff. The image loaded by the LoadImageFromFile method or by the LoadImageFromRawData method will be inserted into the Tiff file set in the SaveUrl parameter at the page location set in the insertPage parameter.
This method is enabled when the insertPage parameter is set to 1 or more. If the value of the insertPage parameter is greater than the number of pages in the multipage Tiff set in the SaveUrl parameter, the image will be added to the end of the multipage Tiff file.
If no image file is set in the SaveUrl parameter then the InsertPageIntoMultipageTiff will save the image loaded by the LoadImageFromFile method or by the LoadImageFromRawData method into the path set in the SaveUrl parameter as a single page Tiff image.
The InsertPageIntoMultipageTiff method is enabled when a
Tiff image format is set in the Val parameter. It is possible for
different pages in the multipage Tiff file to have different Tiff
compression formats. If a file format other than a Tiff format is
chosen for the Val parameter, if the insertPage parameter is set to
0 or less, or if the image file set in the SaveUrl parameter is not
a Tiff file, then the InsertPageIntoMultipageTiff method
will fail and return a value of False. The image loaded by the
LoadImageFromFile method
or by the LoadImageFromRawData method
need not be a Tiff image but there are issues regarding the
bitcount that must be considered. See explanation below.
Regarding tiff compression and image bitcounts:
Depending on the tiff compression choosen, images with certain
bitcounts may not be able to be saved. In this case, errors may
result. Below is a table listing the tiff compression and the
bitcounts that are possible with that compression
| Format | Compatible Bitcount |
|---|---|
| Tiff (Uncompressed) | 1, 4, 8, 16 (16 grayscale not supported), 24, 32. |
| Tiff (Group 3-1D) | 1, 4, 8, 16 (16 grayscale not supported), 24,
32. Important: On Windows Vista, only 1 bit images are supported. All other bitcounts will fail |
| Tiff (Group 4) | 1, 4, 8, 16 (16 grayscale not supported), 24,
32. Important: On Windows Vista, only 1 bit images are supported. All other bitcounts will fail |
| Tiff (Packbits) | 1, 24. |
| Tiff (LZW) | 1, 4, 8, 16 (16 grayscale not supported), 24, 32. |
Tiff Group3-1D are the same format as MH. Tiff Group4 are the
same format as MMR.
In Uncompressed and LZW formats, 16 bit images are converted to 24
bit images.
Examples
The following code will load a 1 bit BMP image, convert it to a Tiff G4 image and insert it into the multipage Tiff file as the
ImageKit1.Url = "1bitBMP.bmp"
ImageKit1.LoadImageFromFile(Newtone.ImageKit.LoadFileType.Load)
ImageKit1.InsertPageIntoMultipageTiff(Newtone.ImageKit.SaveFileType.SaveTIFFNoncompressed, "001.Tif", 3)
[Visual C#.NET]
ImageKit1.Url = "1bitBMP.bmp";
ImageKit1.LoadImageFromFile(Newtone.ImageKit.LoadFileType.Load);
ImageKit1.InsertPageIntoMultipageTiff(Newtone.ImageKit.SaveFileType.SaveTIFFNoncompressed, "001.Tif", 3)
Also See
ImageKit.WPF.Web.ImageKit Members | Newtone.ImageKit.WPF.Web.ImageKit