CODEWITHSUNDEEP
javaitext
Milos
Milos

Reputation: 66

After copying pdf to pdf a new paragraph added to destination is flipped

When I create a new pdf document and add paragraph, it is OK. When I copy sourcePDF to a new PDF document and after that add a new paragraph, it is flipped. I know that if I create a new pdf doc with text and merge with dest documents, it will be ok, but I hope there is simple solution. So here is my code.

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.layout.Canvas;
import com.itextpdf.layout.Document;
import com.itextpdf.layout.borders.SolidBorder;
import com.itextpdf.layout.element.Paragraph;
import com.itextpdf.layout.properties.BaseDirection;
import com.itextpdf.text.DocumentException;


 public void copyPdfToPdf(String text, String inputPdf, String outputPdf) throws IOException, DocumentException {


PdfDocument pdfDocInput = new PdfDocument(new PdfReader(inputPdf));
    Document docInput = new Document(pdfDocInput);
    PdfDocument pdfDocOutput = new PdfDocument(new PdfWriter(outputPdf));
    Document docOutput = new Document(pdfDocOutput);
    
    pdfDocInput.copyPagesTo(1, pdfDocInput.getNumberOfPages(), pdfDocOutput);
         Paragraph p = new Paragraph().add(text);
         
         docOutput.add(p);
         

    docOutput.close();
    docInput.close();
}

enter image description here

How to change document transformation to write a new paragraf in right direction not flipped

I find out this

Adding page number text to pdf copy gets flipped/mirrored with itext 7

but I did not resolve a problem.

Upvotes: 0

Views: 117

Answers (2)

Milos
Milos

Reputation: 66

Instead pdfDocInput.copyPagesTo... I simple create a new PdfDocument(reader, writer) After that I add paragraph at fixed position.

 PdfReader reader = new PdfReader(inputPdf);
            PdfWriter writer = new PdfWriter(outputPdf);
            PdfDocument pdfDocument = new PdfDocument(reader, writer);
            Document docOutput = new Document(pdfDocument);
            
            File file = ResourceUtils.getFile("classpath:fonts/FreeSans.ttf");
                 String FONT =  file.getAbsolutePath();
                 PdfFont freeUnicode = PdfFontFactory.createFont(FONT, PdfEncodings.IDENTITY_H);
                 freeUnicode.getFontProgram();

                 PdfPage newPage = pdfDocument.getFirstPage();
                 int numberOfPages = pdfDocument.getNumberOfPages();        
                 Rectangle pageSize = newPage.getCropBox();
                 
                 Paragraph p = new Paragraph()
                        .setFixedPosition(numberOfPages, pageSize.getWidth()/2, 50, pageSize.getWidth()/2)
                       .setFont(freeUnicode).setFontSize(9)
                       .add(tekst);
                 docOutput.add(p);
         

            pdfDocument.close();
            docOutput.close();

Upvotes: 0

Full Array
Full Array

Reputation: 807

It seems you are creating the document randomly without establishing specific settings, characteristics, or properties. This usually results in random results instead of consistent ones.

You have two options.

  1. Rotate the document.
  2. Rotate the text.

Please note the assumptions.

  1. You must know your document orientation and size.

Sources:

  1. https://kb.itextpdf.com/it5kb/how-to-rotate-a-paragraph
  2. https://kb.itextpdf.com/itext/how-to-rotate-a-page-while-creating-a-pdf-document

Upvotes: 0

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