How to tile a page content in a PDF document using Java.
Following is the program to tile a page content in a pdf using Java.
import com.itextpdf.kernel.geom.AffineTransform; import com.itextpdf.kernel.geom.PageSize; import com.itextpdf.kernel.geom.Rectangle; import com.itextpdf.kernel.pdf.PdfDocument; import com.itextpdf.kernel.pdf.PdfPage; import com.itextpdf.kernel.pdf.PdfReader; import com.itextpdf.kernel.pdf.PdfWriter; import com.itextpdf.kernel.pdf.canvas.PdfCanvas; import com.itextpdf.kernel.pdf.xobject.PdfFormXObject; public class TilingPDFPages { public static void main(String args[]) throws Exception { //Creating a PdfWriter object String dest = "C:/itextExamples/tilingPdfPages.pdf"; PdfWriter writer = new PdfWriter(dest); //Creating a PdfReader String src = "C:/itextExamples/pdfWithImage.pdf"; PdfReader reader = new PdfReader(src); //Creating a PdfDocument objects PdfDocument destpdf = new PdfDocument(writer); PdfDocument srcPdf = new PdfDocument(reader); //Opening a page from the existing PDF PdfPage origPage = srcPdf.getPage(1); //Getting the page size Rectangle orig = origPage.getPageSizeWithRotation(); //Getting the size of the page PdfFormXObject pageCopy = origPage.copyAsFormXObject(destpdf); //Tile size Rectangle tileSize = PageSize.A4.rotate(); AffineTransform transformationMatrix = AffineTransform.getScaleInstance( tileSize.getWidth() / orig.getWidth() * 2f, tileSize.getHeight() / orig.getHeight() * 2f); //The first tile PdfPage page = destpdf.addNewPage(PageSize.A4.rotate()); PdfCanvas canvas = new PdfCanvas(page); canvas.concatMatrix(transformationMatrix); canvas.addXObject(pageCopy, 0, -orig.getHeight() / 2f); //The second tile page = destpdf.addNewPage(PageSize.A4.rotate()); canvas = new PdfCanvas(page); canvas.concatMatrix(transformationMatrix); canvas.addXObject(pageCopy, -orig.getWidth() / 2f, -orig.getHeight() / 2f); //The third tile page = destpdf.addNewPage(PageSize.A4.rotate()); canvas = new PdfCanvas(page); canvas.concatMatrix(transformationMatrix); canvas.addXObject(pageCopy, 0, 0); //The fourth tile page = destpdf.addNewPage(PageSize.A4.rotate()); canvas = new PdfCanvas(page); canvas.concatMatrix(transformationMatrix); canvas.addXObject(pageCopy, -orig.getWidth() / 2f, 0); destpdf.close(); srcPdf.close(); System.out.println("PDF created successfully.."); } }