package mkl.testarea.pdfbox2.content;
import java.awt.Rectangle;
import java.awt.geom.Point2D;
import java.io.File;
import java.io.IOException;
import java.io.InputStream;
import org.apache.pdfbox.Loader;
import org.apache.pdfbox.pdmodel.PDDocument;
import org.apache.pdfbox.pdmodel.PDPage;
import org.apache.pdfbox.pdmodel.PDPageContentStream;
import org.apache.pdfbox.pdmodel.common.PDRectangle;
import org.apache.pdfbox.util.Matrix;
import org.junit.BeforeClass;
import org.junit.Test;
/**
* @author mkl
*/
public class RotatePageContent
{
final static File RESULT_FOLDER = new File("target/test-outputs", "content");
@BeforeClass
public static void setUpBeforeClass() throws Exception
{
RESULT_FOLDER.mkdirs();
}
/**
* <a href="http://stackoverflow.com/questions/40611736/rotate-pdf-around-its-center-using-pdfbox-in-java">
* Rotate PDF around its center using PDFBox in java
* </a>
* <p>
* Indeed, using the code of the OP the image mostly is rotated out of the page area.
* </p>
*/
@Test
public void testRotateLikeSagar() throws IOException
{
try ( InputStream resource = getClass().getResourceAsStream("IRJET_Copy_Right_form.pdf") )
{
PDDocument document = Loader.loadPDF(resource);
PDPage page = document.getDocumentCatalog().getPages().get(0);
PDPageContentStream cs = new PDPageContentStream(document, page, PDPageContentStream.AppendMode.PREPEND, false, false);
cs.transform(Matrix.getRotateInstance(Math.toRadians(45), 0, 0));
cs.close();
document.save(new File(RESULT_FOLDER, "IRJET_Copy_Right_form-rotated-like-sagar.pdf"));
}
}
/**
* <a href="http://stackoverflow.com/questions/40611736/rotate-pdf-around-its-center-using-pdfbox-in-java">
* Rotate PDF around its center using PDFBox in java
* </a>
* <p>
* This test shows how to rotate the page content around the center of its crop box.
* </p>
*/
@Test
public void testRotateCenter() throws IOException
{
try ( InputStream resource = getClass().getResourceAsStream("IRJET_Copy_Right_form.pdf") )
{
PDDocument document = Loader.loadPDF(resource);
PDPage page = document.getDocumentCatalog().getPages().get(0);
PDPageContentStream cs = new PDPageContentStream(document, page, PDPageContentStream.AppendMode.PREPEND, false, false);
PDRectangle cropBox = page.getCropBox();
float tx = (cropBox.getLowerLeftX() + cropBox.getUpperRightX()) / 2;
float ty = (cropBox.getLowerLeftY() + cropBox.getUpperRightY()) / 2;
cs.transform(Matrix.getTranslateInstance(tx, ty));
cs.transform(Matrix.getRotateInstance(Math.toRadians(45), 0, 0));
cs.transform(Matrix.getTranslateInstance(-tx, -ty));
cs.close();
document.save(new File(RESULT_FOLDER, "IRJET_Copy_Right_form-rotated-center.pdf"));
}
}
/**
* <a href="http://stackoverflow.com/questions/40611736/rotate-pdf-around-its-center-using-pdfbox-in-java">
* Rotate PDF around its center using PDFBox in java
* </a>
* <p>
* This test shows how to rotate the page content around the center of its crop box
* and then crop it to make all previously visible content fit.
* </p>
*/
@Test
public void testRotateCenterScale() throws IOException
{
try ( InputStream resource = getClass().getResourceAsStream("IRJET_Copy_Right_form.pdf") )
{
PDDocument document = Loader.loadPDF(resource);
PDPage page = document.getDocumentCatalog().getPages().get(0);
PDPageContentStream cs = new PDPageContentStream(document, page, PDPageContentStream.AppendMode.PREPEND, false, false);
Matrix matrix = Matrix.getRotateInstance(Math.toRadians(45), 0, 0);
PDRectangle cropBox = page.getCropBox();
float tx = (cropBox.getLowerLeftX() + cropBox.getUpperRightX()) / 2;
float ty = (cropBox.getLowerLeftY() + cropBox.getUpperRightY()) / 2;
Rectangle rectangle = cropBox.transform(matrix).getBounds();
float scale = Math.min(cropBox.getWidth() / (float)rectangle.getWidth(), cropBox.getHeight() / (float)rectangle.getHeight());
cs.transform(Matrix.getTranslateInstance(tx, ty));
cs.transform(matrix);
cs.transform(Matrix.getScaleInstance(scale, scale));
cs.transform(Matrix.getTranslateInstance(-tx, -ty));
cs.close();
document.save(new File(RESULT_FOLDER, "IRJET_Copy_Right_form-rotated-center-scale.pdf"));
}
}
/**
* <a href="http://stackoverflow.com/questions/40611736/rotate-pdf-around-its-center-using-pdfbox-in-java">
* Rotate PDF around its center using PDFBox in java
* </a>
* <p>
* This test shows how to rotate the page content and then move its crop box and
* media box accordingly to make it appear as if the content was rotated around
* the center of the crop box.
* </p>
*/
@Test
public void testRotateMoveBox() throws IOException
{
try ( InputStream resource = getClass().getResourceAsStream("IRJET_Copy_Right_form.pdf") )
{
PDDocument document = Loader.loadPDF(resource);
PDPage page = document.getDocumentCatalog().getPages().get(0);
PDPageContentStream cs = new PDPageContentStream(document, page, PDPageContentStream.AppendMode.PREPEND, false, false);
Matrix matrix = Matrix.getRotateInstance(Math.toRadians(45), 0, 0);
cs.transform(matrix);
cs.close();
PDRectangle cropBox = page.getCropBox();
float cx = (cropBox.getLowerLeftX() + cropBox.getUpperRightX()) / 2;
float cy = (cropBox.getLowerLeftY() + cropBox.getUpperRightY()) / 2;
Point2D.Float newC = matrix.transformPoint(cx, cy);
float tx = (float)newC.getX() - cx;
float ty = (float)newC.getY() - cy;
page.setCropBox(new PDRectangle(cropBox.getLowerLeftX() + tx, cropBox.getLowerLeftY() + ty, cropBox.getWidth(), cropBox.getHeight()));
PDRectangle mediaBox = page.getMediaBox();
page.setMediaBox(new PDRectangle(mediaBox.getLowerLeftX() + tx, mediaBox.getLowerLeftY() + ty, mediaBox.getWidth(), mediaBox.getHeight()));
document.save(new File(RESULT_FOLDER, "IRJET_Copy_Right_form-rotated-move-box.pdf"));
}
}
/**
* <a href="http://stackoverflow.com/questions/40611736/rotate-pdf-around-its-center-using-pdfbox-in-java">
* Rotate PDF around its center using PDFBox in java
* </a>
* <p>
* This test shows how to rotate the page content and then set the crop
* box and media box to the bounding rectangle of the rotated page area.
* </p>
*/
@Test
public void testRotateExpandBox() throws IOException
{
try ( InputStream resource = getClass().getResourceAsStream("IRJET_Copy_Right_form.pdf") )
{
PDDocument document = Loader.loadPDF(resource);
PDPage page = document.getDocumentCatalog().getPages().get(0);
PDPageContentStream cs = new PDPageContentStream(document, page, PDPageContentStream.AppendMode.PREPEND, false, false);
Matrix matrix = Matrix.getRotateInstance(Math.toRadians(45), 0, 0);
cs.transform(matrix);
cs.close();
PDRectangle cropBox = page.getCropBox();
Rectangle rectangle = cropBox.transform(matrix).getBounds();
PDRectangle newBox = new PDRectangle((float)rectangle.getX(), (float)rectangle.getY(), (float)rectangle.getWidth(), (float)rectangle.getHeight());
page.setCropBox(newBox);
page.setMediaBox(newBox);
document.save(new File(RESULT_FOLDER, "IRJET_Copy_Right_form-rotated-expand-box.pdf"));
}
}
}
