Creating a multi page PDF from a multipage TIFF

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Here is some code that correctly imports and scales pages from a multipage TIFF image and creates a multipage PDF file.

NOTE : ImageWidth and ImageHeight return the size of the image in pixels, not points, so we must calculate the correct page size by extracting the DPI from the image.

Andrew.

        private void AddImageFromFile_Click(object sender, EventArgs e)
        {
            openFileDialog1.Filter = "TIFF Files|*.tif";

            if (openFileDialog1.ShowDialog() == DialogResult.OK)
            {
                QP.NewDocument();

                int pages = QP.GetImagePageCount(openFileDialog1.FileName);
                if (pages == 0)
                    pages = 1;

                for (int i=1;i<=pages;i++)
                {
                    if (i != 1)
                        QP.NewPage();

                    int id = QP.AddImageFromFile(openFileDialog1.FileName, i);

                    QP.SelectImage(id);

                    int dpix = QP.ImageHorizontalResolution();
                    int dpiy = QP.ImageVerticalResolution();

                    if (dpix == 0) dpix = 72;
                    if (dpiy == 0) dpiy = 72;

                    double ImageWidthInPoints = (double)QP.ImageWidth() / dpix * 72.0; // assumming dpi units
                    double ImageHeightInPoints = (double)QP.ImageHeight() / dpiy * 72.0;

                    QP.SetPageDimensions(ImageWidthInPoints, ImageHeightInPoints);
                    QP.SetOrigin(1);
                    QP.DrawImage(0, 0, ImageWidthInPoints, ImageHeightInPoints);

                }

                QP.SaveToFile("out.pdf");

                QP.RemoveDocument(QP.SelectedDocument());
            }
        }

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AndrewC Members Profile Find Members Posts Moderator Group Joined: 08 Dec 10 Location: Geelong, Aust Status: Offline Points: 841	Post Options Post Reply Quote AndrewC Report Post Thanks(1) Quote Reply Topic: Creating a multi page PDF from a multipage TIFF Posted: 01 Feb 12 at 9:06AM
	Here is some code that correctly imports and scales pages from a multipage TIFF image and creates a multipage PDF file. NOTE : ImageWidth and ImageHeight return the size of the image in pixels, not points, so we must calculate the correct page size by extracting the DPI from the image. Andrew. private void AddImageFromFile_Click(object sender, EventArgs e) { openFileDialog1.Filter = "TIFF Files\|.tif"; if (openFileDialog1.ShowDialog() == DialogResult.OK) { QP.NewDocument(); int pages = QP.GetImagePageCount(openFileDialog1.FileName); if (pages == 0) pages = 1; for (int i=1;i<=pages;i++) { if (i != 1) QP.NewPage(); int id = QP.AddImageFromFile(openFileDialog1.FileName, i); QP.SelectImage(id); int dpix = QP.ImageHorizontalResolution(); int dpiy = QP.ImageVerticalResolution(); if (dpix == 0) dpix = 72; if (dpiy == 0) dpiy = 72; double ImageWidthInPoints = (double)QP.ImageWidth() / dpix 72.0; // assumming dpi units double ImageHeightInPoints = (double)QP.ImageHeight() / dpiy * 72.0; QP.SetPageDimensions(ImageWidthInPoints, ImageHeightInPoints); QP.SetOrigin(1); QP.DrawImage(0, 0, ImageWidthInPoints, ImageHeightInPoints); } QP.SaveToFile("out.pdf"); QP.RemoveDocument(QP.SelectedDocument()); } }