CODEWITHSUNDEEP
javapdfitextitext7
Jestino Sam
Jestino Sam

Reputation: 602

iText - Clone existing content and add in same page

I want to know if an existing content of a PDF can be cloned using iText. Basically I have a PDF in the below format:

Without cloning the content enter image description here

I want to clone the content that is on the left side in the above PDF and want the result as per the below format.

After cloning the content enter image description here

I am wondering if this is possible using iText PdfStamper class or any other class of iText?

Updating the code with iText7

public void clonePageContent(String dest) throws IOException {
    // Initialize PDF Document
    PdfDocument pdf = new PdfDocument(new PdfWriter(dest));
    PdfDocument sourcePdf = new PdfDocument(new PdfReader(SRC));

    // Original page
    PdfPage origPage = sourcePdf.getPage(1);

    // Original page size
    Rectangle orig = origPage.getPageSize();
    PdfFormXObject pageCopy = origPage.copyAsFormXObject(pdf);

    // N-up page
    PageSize nUpPageSize = PageSize.LETTER;
    PdfPage page = pdf.addNewPage(nUpPageSize);
    page.setRotation(90);
    PdfCanvas canvas = new PdfCanvas(page);

    // Scale page
    AffineTransform transformationMatrix = AffineTransform
            .getScaleInstance(
                    nUpPageSize.getWidth() / orig.getWidth() / 2f,
                    nUpPageSize.getHeight() / orig.getHeight() / 2f);
    canvas.concatMatrix(transformationMatrix);

    // Add pages to N-up page
    canvas.addXObject(pageCopy, 0, orig.getHeight());
    canvas.addXObject(pageCopy, orig.getWidth(), orig.getHeight());

    pdf.close();
    sourcePdf.close();
}

With the above code, I am not able to produce the output as expected. Can someone throw some light as to what should be tweaked to get the above expected output?

Upvotes: 1

Views: 901

Answers (1)

Jestino Sam
Jestino Sam

Reputation: 602

After so many days of struggle, the below code helps in achieving the above output that I was expecting. Hope this might be helpful to someone, someday! P.S: I am newbie to iText7.

public void clonePageContent(String dest) throws IOException {
        // Initialize PDF Document
        PdfDocument pdf = new PdfDocument(new PdfWriter(dest));
        PdfDocument sourcePdf = new PdfDocument(new PdfReader(SRC));

        // Original page
        PdfPage origPage = sourcePdf.getPage(1);

        // Original page size
        Rectangle orig = origPage.getPageSize();
        PdfFormXObject pageCopy = origPage.copyAsFormXObject(pdf);
        //PdfCanvas canvas = new PdfCanvas(pageCopy,sourcePdf);


        // N-up page
        PageSize nUpPageSize = PageSize.LETTER;
        PdfPage page = pdf.addNewPage(nUpPageSize).setRotation(90);
        PdfCanvas canvas = new PdfCanvas(page);

        // Scale page
        AffineTransform transformationMatrix = AffineTransform
                .getScaleInstance(
                        page.getPageSize().getWidth() / orig.getWidth(), page.getPageSize().getHeight() / orig.getHeight()
                        );
        canvas.concatMatrix(transformationMatrix);

        System.out.println(page.getPageSize().getWidth());
        System.out.println(orig.getWidth());

        // Add pages to N-up page
        canvas.addXObject(pageCopy, 0, 0);
        canvas.addXObject(pageCopy, 0, 350f); //350f
        //canvas.addXObject(pageCopy, orig.getRight(), orig.getWidth());

        pdf.close();
        sourcePdf.close();
    }

Upvotes: 2

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