private static void ProcessPages(ref SolidFramework.Pdf.Plumbing.PdfPages pages,
ref List <SolidFramework.Pdf.Plumbing.PdfPage> listPages)
{
// Walk the Pages catalog and get all the page objects. This will follow
// the references and get the actual object that we can work
// with recursively.
foreach (SolidFramework.Pdf.Plumbing.PdfItem pdfItem in pages.Kids)
{
SolidFramework.Pdf.Plumbing.PdfDictionary dictionary =
(SolidFramework.Pdf.Plumbing.PdfDictionary)
SolidFramework.Pdf.Plumbing.PdfItem.GetIndirectionItem(pdfItem);
if (dictionary.Type == "Pages")
{
SolidFramework.Pdf.Plumbing.PdfPages nodePages =
(SolidFramework.Pdf.Plumbing.PdfPages)dictionary;
ProcessPages(ref nodePages, ref listPages);
}
else if (dictionary.Type == "Page")
{
SolidFramework.Pdf.Plumbing.PdfPage page =
(SolidFramework.Pdf.Plumbing.PdfPage)dictionary;
listPages.Add(page);
}
}
}
static public void DoConversion(string file, string password, string folder, int dpi, string pagerange, ImageType iType)
{
System.Drawing.Imaging.ImageFormat format;
string extension = null;
// Setup the license
SolidFramework.License.ActivateDeveloperLicense();
// Set the output image type
switch (iType)
{
case ImageType.BMP:
format = System.Drawing.Imaging.ImageFormat.Bmp;
extension = "bmp";
break;
case ImageType.JPG:
format = System.Drawing.Imaging.ImageFormat.Jpeg;
extension = "jpg";
break;
case ImageType.PNG:
format = System.Drawing.Imaging.ImageFormat.Png;
extension = "png";
break;
case ImageType.TIFF:
format = System.Drawing.Imaging.ImageFormat.Tiff;
extension = "tif";
break;
default:
throw new ArgumentException("DoConversion: ImageType not known");
}
// Load up the document
SolidFramework.Pdf.PdfDocument doc =
new SolidFramework.Pdf.PdfDocument(file, password);
doc.Open();
// Setup the outputfolder
if (!Directory.Exists(folder))
{
Directory.CreateDirectory(folder);
}
// Setup the file string.
string filename = folder + Path.DirectorySeparatorChar +
Path.GetFileNameWithoutExtension(file);
// Get our pages.
List <SolidFramework.Pdf.Plumbing.PdfPage> Pages =
new List <SolidFramework.Pdf.Plumbing.PdfPage>(doc.Catalog.Pages.PageCount);
SolidFramework.Pdf.Catalog catalog =
(SolidFramework.Pdf.Catalog)SolidFramework.Pdf.Catalog.Create(doc);
SolidFramework.Pdf.Plumbing.PdfPages pages =
(SolidFramework.Pdf.Plumbing.PdfPages)catalog.Pages;
ProcessPages(ref pages, ref Pages);
// Check for page ranges
PageRange ranges = null;
bool bHaveRanges = false;
if (!string.IsNullOrEmpty(pagerange))
{
bHaveRanges = PageRange.TryParse(pagerange, out ranges);
}
if (bHaveRanges)
{
int[] pageArray = ranges.ToArray();
foreach (int number in pageArray)
{
CreateImageFromPage(Pages[number], dpi, filename, number,
extension, format);
Console.WriteLine(string.Format("Processed page {0} of {1}", number,
Pages.Count));
}
}
else
{
// For each page, save off a file.
int pageIndex = 0;
foreach (SolidFramework.Pdf.Plumbing.PdfPage page in Pages)
{
// Update the page number.
pageIndex++;
CreateImageFromPage(page, dpi, filename, pageIndex, extension, format);
Console.WriteLine(string.Format("Processed page {0} of {1}", pageIndex,
Pages.Count));
}
}
}
