private static void booklet(String input) throws Exception {
String output = input.replace(".pdf", "-booklet.pdf");
PdfReader reader = new PdfReader(input);
int n = reader.getNumberOfPages();
Rectangle pageSize = reader.getPageSize(1);
System.out.println("Input page size: " + pageSize);
Document doc = new Document(PageSize.A4.rotate(), 0, 0, 0, 0);
PdfWriter writer = PdfWriter.getInstance(doc, new FileOutputStream(output));
doc.open();
splitLine(doc, writer);
int[] pages = new int[(n + 3) / 4 * 4];
int x = 1, y = pages.length;
for (int i = 0; i < pages.length; ) {
pages[i++] = y--;
pages[i++] = x++;
pages[i++] = x++;
pages[i++] = y--;
}
PdfContentByte cb = writer.getDirectContent();
float bottom = (doc.top() - pageSize.getHeight()) / 2 + kOffset;
float left = doc.right() / 2 - (pageSize.getWidth() + kTextWidth) / 2 - kMargin;
float right = doc.right() / 2 - (pageSize.getWidth() - kTextWidth) / 2 + kMargin;
for (int i = 0; i < pages.length; ) {
PdfImportedPage page = getPage(writer, reader, pages[i++]);
if (page != null) cb.addTemplate(page, left, bottom);
page = getPage(writer, reader, pages[i++]);
if (page != null) cb.addTemplate(page, right, bottom);
doc.newPage();
}
doc.close();
}
private static void crop(String input) throws Exception {
String output = input.replace(".pdf", "-crop.pdf");
PdfReader reader = new PdfReader(input);
final int n = reader.getNumberOfPages();
Rectangle pageSize = reader.getPageSize(1);
System.out.println("Input page size: " + pageSize);
float left = (pageSize.getWidth() - kTextWidth) / 2 - kMargin;
float right = pageSize.getWidth() - left;
float bottom = (pageSize.getHeight() - kTextHeight) / 2;
float top = pageSize.getHeight() - bottom;
PdfRectangle rect = new PdfRectangle(left, bottom + kOffset, right, top + kOffset);
for (int i = 1; i <= n; i++) {
PdfDictionary pageDict = reader.getPageN(i);
pageDict.put(PdfName.CROPBOX, rect);
}
PdfStamper stamper = new PdfStamper(reader, new FileOutputStream(output));
stamper.close();
}
@Override
public void postProcess(ITextContext context, File fileIn, File fileOut) {
FileInputStream in = null;
FileOutputStream out = null;
try {
in = new FileInputStream(fileIn);
out = new FileOutputStream(fileOut);
PageNumber pageNumber = context.pageNumber();
int startPage = pageNumber.lookupFrontMatterLastPage();
ColumnText ct = generateTableOfContent(context);
pageNumber.continueFrontMatter();
PdfReader reader = new PdfReader(in);
Rectangle pageSize = reader.getPageSize(1);
PdfStamper stamper = new PdfStamper(reader, out);
while (true) {
stamper.insertPage(++startPage, pageSize);
PdfContentByte under = stamper.getUnderContent(startPage);
pageNumber.notifyPageChange();
headerFooter.drawFooter(under, pageNumber.pageInfos());
PdfContentByte canvas = stamper.getOverContent(startPage);
ct.setCanvas(canvas);
ct.setSimpleColumn(36, 36, 559, 770);
if (!ColumnText.hasMoreText(ct.go())) break;
}
stamper.close();
} catch (FileNotFoundException e) {
log.error("Unable to reopen temporary generated file ({})", fileIn, e);
} catch (DocumentException e) {
log.error("Error during report post-processing from: {}, to: {}", fileIn, fileOut, e);
} catch (IOException e) {
log.error("Error during report post-processing from: {}, to: {}", fileIn, fileOut, e);
} finally {
IOUtils.closeQuietly(out);
IOUtils.closeQuietly(in);
}
}
