Formatage pdf en Java

Question

Formatage pdf en Java

J'ai un problème avec le formatage pdf. J'ajoute déjà du texte au fichier pdf mais il y a un problème - je ne sais pas à quoi ressemblera le pdf. Je veux dire qu'il y a beaucoup plus d'un modèle et sur un pdf j'ajoute en bonne place, mais sur un autre mon texte couvre quelques informations importantes.

/**
* metoda dodaje podpis do pdf
* @param fileDokument
* @throws DocumentException
* @throws IOException
* @throws SQLException 
*/
private void addSignatureToPdf(FileDokument fileDokument) throws DocumentException, IOException, SQLException {
   java.util.Date dateToFind = Calendar.getInstance().getTime();
   DecimalFormat df = new DecimalFormat("00");
   DateTime dt = new DateTime();
   int year = dt.getYear();
   int month = dt.getMonthOfYear();
   int day = dt.getDayOfMonth();

   File f = new File(fileDokument.getFileNazwa());

   String operator = produkt.getOperatorProwadzacyForRolaAndDate(dateToFind, 5).toString();
   operator = operator.replaceAll("\\(.*\\)", "").trim();

   PdfReader reader = new PdfReader(""+fileDokument.getFileNazwaFile());
   int height = (int) reader.getPageSize(1).getHeight();
   int width = (int) reader.getPageSize(1).getWidth();
   int fontSize = getFontSizeAdjustingToScreenSize(height);
   int marginCompatibility = getMarginCompatibilityAdjustingToScreenSize(width);
   int heightBelow = getHeightBelowAdjustingToScreenSize(width);

   File outFile = File.createTempFile("pismo_", ".pdf", MainApp.tmpDir);

   PdfStamper stamper = new PdfStamper(reader, new FileOutputStream(outFile));
   BaseFont bf = BaseFont.createFont(BaseFont.TIMES_ITALIC, codingType, false);
   PdfContentByte over;

   int total = reader.getNumberOfPages() + 1;
   for (int a = 1; a < total; a++) {
       stamper.setRotateContents(false);
       over = stamper.getOverContent(a);
       over.beginText();
       over.setFontAndSize(bf,fontSize);
       over.setTextMatrix(marginCompatibility, heightBelow);
       over.showText("Za zgodność z oryginałem Radca Prawny " + operator + ", Wrocław, dnia " + df.format(day) + "-" + df.format(month) + "-" + year + "r.  .................. (podpis)");  
       over.endText();
   }
   stamper.close();
   MainApp.openFile(outFile);

}

Mon idée est de redimensionner le pdf pour le rendre un peu plus petit et d'ajouter un champ de texte qui sera toujours vide et ne couvrira aucun texte. Pouvez-vous aider ou donner d'autres idées, s'il vous plait?

0

French java itext

Author: Michu93, 2016-03-24

Source

1 answers

score 2 · Accepted Answer

Vraiment merci à @mkl et @ Bruno Lowagie!

Réponse finale:

/**
 * method to shrink pdf file
 * @param writer
 * @param stamper
 * @param reader
 * @param page
 * @param factor
 * @throws IOException 
 */
private void shrink(com.itextpdf.text.pdf.PdfStamper stamper, int page, float factor) throws IOException
{
    com.itextpdf.text.Rectangle crop = stamper.getReader().getCropBox(page);
    float diffX = crop.getRight() * (1 - factor);
    float diffY = crop.getTop() * (1 - factor);
    com.itextpdf.text.pdf.PdfDictionary pageN = stamper.getReader().getPageN(page);
    stamper.markUsed(pageN);
    com.itextpdf.text.pdf.PdfArray ar = null;
    com.itextpdf.text.pdf.PdfObject content = com.itextpdf.text.pdf.PdfReader.getPdfObject(pageN.get(com.itextpdf.text.pdf.PdfName.CONTENTS), pageN);
    if(content == null)
        return;
    if(content.isArray())
    {
        ar = new com.itextpdf.text.pdf.PdfArray((com.itextpdf.text.pdf.PdfArray)content);
        pageN.put(com.itextpdf.text.pdf.PdfName.CONTENTS, ar);
    }
    else if(content.isStream())
    {
        ar = new com.itextpdf.text.pdf.PdfArray();
        ar.add(pageN.get(com.itextpdf.text.pdf.PdfName.CONTENTS));
        pageN.put(com.itextpdf.text.pdf.PdfName.CONTENTS, ar);
    }
    else
        return;
    com.itextpdf.text.pdf.ByteBuffer out_p = new com.itextpdf.text.pdf.ByteBuffer();
    out_p.append(factor).append(" 0 0 ").append(factor).append(' ').append(diffX).append(" ").append(diffY).append(" cm ");
    com.itextpdf.text.pdf.PdfStream stream = new com.itextpdf.text.pdf.PdfStream(out_p.toByteArray());
    ar.addFirst(stamper.getWriter().addToBody(stream).getIndirectReference());
    out_p.reset();
}

/*
* method adding box with "Za zgodnosc..." on the bottom of the page
*/
private void addBoxToPage(com.itextpdf.text.pdf.PdfReader reader, int page, float factor, com.itextpdf.text.pdf.PdfStamper stamper, String operator) throws com.itextpdf.text.DocumentException {
    DecimalFormat df = new DecimalFormat("00");
    DateTime dt = new DateTime();
    int year = dt.getYear();
    int month = dt.getMonthOfYear();
    int day = dt.getDayOfMonth();
    com.itextpdf.text.Rectangle box = reader.getCropBox(page);
    box.setTop(box.getTop() - factor * box.getHeight());
    com.itextpdf.text.pdf.PdfContentByte cb = stamper.getOverContent(page);
    cb.setColorFill(BaseColor.YELLOW);
    cb.setColorStroke(BaseColor.RED);
    cb.rectangle(box.getLeft(), box.getBottom(), box.getWidth(), box.getHeight());
    cb.fillStroke();
    cb.setColorFill(BaseColor.BLACK);
    ColumnText ct = new ColumnText(cb);
    ct.addElement(new Paragraph("Za zgodność z oryginałem Radca Prawny " + operator + ", Wrocław, dnia " + df.format(day) + "-" + df.format(month) + "-" + year + "r.  .................. (podpis)"));
    ct.setSimpleColumn(box);
    ct.go();
}

Et c'est comme ça que je l'appelle

   int total = reader.getNumberOfPages() + 1;
   for (int a = 1; a < total; a++) {
       shrink(stamper, a, factor);
       addBoxToPage(reader, a, factor, stamper, operator);
   }