PDF
Toolkit - Save Image to PDF in C#
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One way to
save an image file to PDF format is by
loading the image file into a DIB, and
then saving the DIB as a PDF file. The
Document Imaging Toolkit provides
several ActiveX methods which load
different types of image files into a
DIB. For example: In BiImgFrm.ocx:
LoadGIFIntoDIB and LoadJPEGIntoDIB
methods, in |
BiDib.ocx:
LoadDIBFromFile method, in BiTiff.ocx:
LoadTiffIntoDIB method. A DIB can be
saved as a PDF file by using the
SaveDIBAsColorPDFPage method (in
BiPdf.ocx).
The following code shows the
InpExample.TIFF file (this file must be
created by the user) loaded into a DIB
then the DIB is saved into the |
OutpExample.PDF file (c:\OutpExample.PDF) in C#.
TIFF is a multipage file format, and so more than one image could be in the
InpExample.TIFF file. So the conversion is in a loop. BITiff1 is an instance of
BiTiff.ocx, BIPDF1 is an instance of BiPdf.ocx. The ImageCount stores the number
of images in the InpExample.TIFF file. |
string TIFFFile, PDFFile,
ErrorString;
long ImageCount, i, hDIB;
PDFFile = “c:\\OutpExample.PDF”;
TIFFFile = “c:\\InpExample.TIFF”;
ImageCount = 0;
ImageCount =
BITiff1.GetNumberOfImagesInTiffFile(TIFFFile);
if (ImageCount == 0)
{
MessageBox.Show("Error loading the TIFF
file.", "Error", MessageBoxButtons.OK,
MessageBoxIcon.Error);
BIPDF1.ReleasePDF();
return;
}
if (ImageCount == -1)
{
MessageBox.Show("The specified file is
not a TIFF file!", "Warning",
MessageBoxButtons.OK,
MessageBoxIcon.Warning);
BIPDF1.ReleasePDF();
return;
}
if (BIPDF1.InitPDF() == false)
return;
if (BIPDF1.CreatePDF(PDFFile) == false)
{
MessageBox.Show("Error creating the PDF
file.", "Error", MessageBoxButtons.OK,
MessageBoxIcon.Error);
BIPDF1.ReleasePDF();
return;
}
for (i = 0; i < ImageCount; i++)
{
hDIB = BITiff1.LoadTiffIntoDIB(TIFFFile,
(short)i, false);
if (hDIB == 0)
{
ErrorString = "Error loading image" +
Convert.ToString(i+1) + " from the TIFF
file!";
MessageBox.Show(ErrorString, "Error",
MessageBoxButtons.OK,
MessageBoxIcon.Error);
BIPDF1.ReleasePDF();
return;
}
if (BIPDF1.SaveDIBAsColorPDFPage((int)
hDIB, "TIFF32.DLL", 512, (short) -1) ==
false)
{
MessageBox.Show("Error saving image into
the PDF file.", "Error",
MessageBoxButtons.OK,
MessageBoxIcon.Error);
BIPDF1.FinishPDF();
BIPDF1.ReleasePDF();
return;
}
}
if(BIPDF1.FinishPDF() == false)
MessageBox.Show("Error finishing the PDF
file.", "Error", MessageBoxButtons.OK,
MessageBoxIcon.Error);
else
MessageBox.Show("PDF file created
successfully.", "Information",
MessageBoxButtons.OK,
MessageBoxIcon.Information);
BIPDF1.ReleasePDF(); |
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