Problem creating Multipage Tff file from existing Tiff

[fs051268]

Hi,

we have the problem that we create a multi-page tiff file using the TiffSaveAsMultiPageFile function but the created file is not editable once opened again.
Here the code we use:

Code: Select all

            int img1 = 0, img2 = 0;
            GdPictureStatus status;
            //Load image 1 and select first page
            img1 = Imaging.CreateGdPictureImageFromFile("in.tif");
            Imaging.TiffSelectPage(img1, 1);
            //Load image 2 and select second page
            img2 = Imaging.CreateGdPictureImageFromFile("in2.tif");
            Imaging.TiffSelectPage(img2, 2);
            status = Imaging.TiffSaveAsMultiPageFile(img1, "out.tif", TiffCompression.TiffCompressionJPEG, 60); //status returns OK
            status = Imaging.TiffAppendPageFromGdPictureImage(img1, img2);  //status returns OK
            Imaging.TiffCloseMultiPageFile(img1);
            Imaging.ReleaseGdPictureImage(img1);
            Imaging.ReleaseGdPictureImage(img2);
            //Now we open the out file and check if it is editable
            img2 = Imaging.CreateGdPictureImageFromFile("out.tif");
            Console.WriteLine("PageCount: " + Imaging.GetPageCount(img2).ToString());
            Console.WriteLine("Editable: " + Imaging.TiffIsEditableMultiPage(img2).ToString()); //This outputs FALSE
            Imaging.ReleaseGdPictureImage(img2);

The line

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img2 = Imaging.CreateGdPictureImageFromFile("out.tif"); 

opens the image but when checking if it is Editable, we get false!

What are we doing wrong?

[SamiKharma]

Hi,

You need to call TiffOpenMultiPageForWirte(True).

Please check https://www.gdpicture.com/guides/gdpicture/web ... Write.html
for a complete explanation on which functions are affected by that method.

Best regards
Sami