import com.accusoft.imagegearpdf.*;
 
class PdfDemo
{
        private PDF pdf;
        private Document document;
        private String inputPath;
        
        // Split a PDF document (numberOfPages indicates how many pages the document should be split by).
        public void splitDocument(long numberOfPages)
        {
                long pageCount = this.document.getPageCount();
                
                // The counter of split documents (zero-based indexing).
                int splitDocumentIndex = 0;
                long pagesRemain = pageCount;
                while (pagesRemain > 0)
                {
                        Document splitDocument = this.pdf.createDocument();
                        try
                        {
                                long startPageNumber = splitDocumentIndex * numberOfPages;
                                long pagesToInsert = pagesRemain > numberOfPages ? numberOfPages : pagesRemain;
                                splitDocument.insertPages(0, this.document, startPageNumber, pagesToInsert);
                                ++splitDocumentIndex;
 
                                String outputPath = inputPath + "_" + splitDocumentIndex + ".pdf";
                                this.savePdf(splitDocument, outputPath);
                                pagesRemain -= numberOfPages;
                        }
                        finally
                        {
                                splitDocument.close();
                                splitDocument = null;
                        }
                }
        }
}