/** * Constructor * * @param document * @param os outputstream */ public PdfCopy(Document document, OutputStream os) throws DocumentException { super(new PdfDocument(), os); document.addDocListener(pdf); pdf.addWriter(this); indirectMap = new HashMap(); }
/** * This class can be used to split an existing PDF file. * * @param args the command line arguments */ public static void main(String args[]) { if (args.length != 4) { System.err.println("arguments: srcfile destfile1 destfile2 pagenumber"); } else { try { int pagenumber = Integer.parseInt(args[3]); // we create a reader for a certain document PdfReader reader = new PdfReader(args[0]); // we retrieve the total number of pages int n = reader.getNumberOfPages(); System.out.println("There are " + n + " pages in the original file."); if (pagenumber < 2 || pagenumber > n) { throw new DocumentException( MessageLocalization.getComposedMessage( "you.can.t.split.this.document.at.page.1.there.is.no.such.page", pagenumber)); } // step 1: creation of a document-object Document document1 = new Document(reader.getPageSizeWithRotation(1)); Document document2 = new Document(reader.getPageSizeWithRotation(pagenumber)); // step 2: we create a writer that listens to the document PdfWriter writer1 = PdfWriter.getInstance(document1, new FileOutputStream(args[1])); PdfWriter writer2 = PdfWriter.getInstance(document2, new FileOutputStream(args[2])); // step 3: we open the document document1.open(); PdfContentByte cb1 = writer1.getDirectContent(); document2.open(); PdfContentByte cb2 = writer2.getDirectContent(); PdfImportedPage page; int rotation; int i = 0; // step 4: we add content while (i < pagenumber - 1) { i++; document1.setPageSize(reader.getPageSizeWithRotation(i)); document1.newPage(); page = writer1.getImportedPage(reader, i); rotation = reader.getPageRotation(i); if (rotation == 90 || rotation == 270) { cb1.addTemplate(page, 0, -1f, 1f, 0, 0, reader.getPageSizeWithRotation(i).getHeight()); } else { cb1.addTemplate(page, 1f, 0, 0, 1f, 0, 0); } } while (i < n) { i++; document2.setPageSize(reader.getPageSizeWithRotation(i)); document2.newPage(); page = writer2.getImportedPage(reader, i); rotation = reader.getPageRotation(i); if (rotation == 90 || rotation == 270) { cb2.addTemplate(page, 0, -1f, 1f, 0, 0, reader.getPageSizeWithRotation(i).getHeight()); } else { cb2.addTemplate(page, 1f, 0, 0, 1f, 0, 0); } System.out.println("Processed page " + i); } // step 5: we close the document document1.close(); document2.close(); } catch (Exception e) { e.printStackTrace(); } } }