[PdfCreateFromMultipageTIFF ] Documentation Clarification?

[MIKES]

Normally when I open a TIFF I have no idea, before hand if it is a single page or multipage tiff.
So I am looking for a process that will handle either.
I realize the documention is referring specifically to handling a MultiPageTIFF.

The Documention Example for PdfCreateFromMultipageTIFF show this

Code: Select all

Dim MultipageImageID As Integer
oGdPictureImaging.TiffOpenMultiPageAsReadOnly(True) 'for better performances
MultipageImageID = oGdPictureImaging.CreateGdPictureImageFromFile("multipage.tif")
oGdPictureImaging.PdfCreateFromMultipageTIFF(MultipageImageID, "multipage.pdf", True, "MyPdfTitle", "MyPdfAuthor", "MyPdfSubject", "MyPdfKeywords", "MyPdfCreator")
oGdPictureImaging.ReleaseGdPictureImage(MultipageImageID)

Which looks to work fine for tiff with multiple pages.
But the CreateGdPictureImageFromFile when used on a TIFF with a single page does not
work with PdfCreateFromMultipageTIFF, that method returns an Invalid File Format.
(It took me a bit to realize why I was getting the Invalid File Format)

Are the two solutions for this?
1) use TiffCreateMultipageFromFile instead of CreateGdPictureImageFromFile
2) use the TiffCreateMultiPageFromGdPicture AFTER the CreateGdPictureImageFromFile

Is one better than the other?

Thanks

[Loïc]

Hi Mikes,

For your problem, the better method using GdPicture.NET is this one:

Code: Select all

Dim ImageID As Integer
Dim oGdPictureImaging As New GdPictureImaging

oGdPictureImaging.SetLicenseNumber("XXX")
oGdPictureImaging.TiffOpenMultiPageAsReadOnly(True) 'for better performances
ImageID = oGdPictureImaging.CreateGdPictureImageFromFile("multipage.tif")
If oGdPictureImaging.TiffIsMultiPage(ImageID) Then
   oGdPictureImaging.PdfCreateFromMultipageTIFF(ImageID, "multipage.pdf", True, "MyPdfTitle", "MyPdfAuthor", "MyPdfSubject", "MyPdfKeywords", "MyPdfCreator")
Else
   oGdPictureImaging.SaveAsPDF(ImageID, "singlepage.pdf", True, "MyPdfTitle", "MyPdfAuthor", "MyPdfSubject", "MyPdfKeywords", "MyPdfCreator")
End If
oGdPictureImaging.ReleaseGdPictureImage(ImageID)

Hope this helps.

Loïc

[acoppi]

dear Loic ,
how can I use it with asp language ??

thanks in advance

Angelo