/// <summary>
/// réorganise les pages d'un document pdf selon la liste d'indices de pages
/// <param name="inputFile">fichier à ordonner</param>
/// <param name="indexList">pages dans l'ordre voulu</param>
/// </summary>
public static void DoReorder(string inputFile, int[] indexList)
{
//var inputFile = Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.Desktop), "Test.pdf");
//var output = Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.Desktop), "Output.pdf");
var output = Path.Combine(ServiceCfg.OutputFolderPath, Path.GetFileName(inputFile));
//Bind a reader to our input file
var reader = new PdfReader(inputFile);
//Create our output file, nothing special here
using (FileStream fs = new FileStream(output, FileMode.Create, FileAccess.Write, FileShare.None))
{
using (Document doc = new Document(reader.GetPageSizeWithRotation(1)))
{
//Use a PdfCopy to duplicate each page
using (PdfCopy copy = new PdfCopy(doc, fs))
{
doc.Open();
copy.SetLinearPageMode();
for (int i = 1; i <= reader.NumberOfPages; i++)
{
copy.AddPage(copy.GetImportedPage(reader, i));
}
//Reorder pages
copy.ReorderPages(indexList);
doc.Close();
}
}
}
}
/// <summary>
/// Re-order the pages of a given pdf and create a new PDF at the output file
/// </summary>
/// <param name="inputPdf">Input pdf</param>
/// <param name="pageSelection">The new order (comma separated pagenumber).</param>
/// <param name="outputPdf">Output pdf.</param>
public static void ReOrderPages(string inputPdf, string pageSelection, string outputPdf)
{
//Bind a reader to our input file
PdfReader reader = new PdfReader(inputPdf);
//Create our output file, nothing special here
using (FileStream fs = new FileStream(outputPdf, FileMode.Create, FileAccess.Write, FileShare.None))
{
using (Document doc = new Document(reader.GetPageSizeWithRotation(1)))
{
//Use a PdfCopy to duplicate each page
using (PdfCopy copy = new PdfCopy(doc, fs))
{
doc.Open();
copy.SetLinearPageMode();
for (int i = 1; i <= reader.NumberOfPages; i++)
{
PdfImportedPage page = copy.GetImportedPage(reader, i);
//Check if tagged pdf
Boolean tagged = page.IsTagged();
copy.AddPage(page);
}
//Reorder pages
int[] newOrder = pageSelection.Split(',').Select(n => int.Parse(n)).ToArray();
copy.ReorderPages(newOrder);
doc.Close();
}
}
}
}
