/// <summary>Splits a document into smaller documents with no more than @pageCount pages each.</summary>
/// <param name="pageCount">the biggest possible number of pages in a split document.</param>
/// <param name="documentReady">
/// the event listener which is called when another document is ready.
/// You can close this document in this listener, for instance.
/// </param>
/// <exception cref="iText.Kernel.PdfException"/>
public virtual void SplitByPageCount(int pageCount, PdfSplitter.IDocumentReadyListener documentReady)
{
for (int startPage = 1; startPage <= pdfDocument.GetNumberOfPages(); startPage += pageCount)
{
int endPage = Math.Min(startPage + pageCount - 1, pdfDocument.GetNumberOfPages());
PageRange currentPageRange = new PageRange().AddPageSequence(startPage, endPage);
PdfDocument currentDocument = CreatePdfDocument(currentPageRange);
pdfDocument.CopyPagesTo(startPage, endPage, currentDocument);
documentReady.DocumentReady(currentDocument, currentPageRange);
}
}
/// <summary>Splits the document by page numbers.</summary>
/// <param name="pageNumbers">
/// the numbers of pages from which another document is to be started.
/// If the first element is not 1, then 1 is implied (i.e. the first split document will start from page 1 in any case).
/// </param>
/// <param name="documentReady">
/// the event listener which is called when another document is ready.
/// You can close this document in this listener, for instance.
/// </param>
/// <exception cref="iText.Kernel.PdfException"/>
public virtual void SplitByPageNumbers(IList <int> pageNumbers, PdfSplitter.IDocumentReadyListener documentReady
)
{
int currentPageNumber = 1;
for (int ind = 0; ind <= pageNumbers.Count; ind++)
{
int nextPageNumber = ind == pageNumbers.Count ? pdfDocument.GetNumberOfPages() + 1 : (int)pageNumbers[ind];
if (ind == 0 && nextPageNumber == 1)
{
continue;
}
PageRange currentPageRange = new PageRange().AddPageSequence(currentPageNumber, nextPageNumber - 1);
PdfDocument currentDocument = CreatePdfDocument(currentPageRange);
pdfDocument.CopyPagesTo(currentPageNumber, nextPageNumber - 1, currentDocument);
documentReady.DocumentReady(currentDocument, currentPageRange);
currentPageNumber = nextPageNumber;
}
}
