CODEWITHSUNDEEP
javapdfbox
Drazen Bjelovuk
Drazen Bjelovuk

Reputation: 5472

Creating new PDF with multiple pages using existing PDF as template

I've been using PDFBox in an attempt to spit out an auto-generated PDF based off an existing template. The code below fails at finalDoc.save() with an IndexOutOfBoundsException and I'm not sure what I'm doing wrong.

PDDocument finalDoc = new PDDocument(); 
for (StudentEN student : students) {
    PDDocument document = PDDocument.load("template.pdf");
    PDPage page = (PDPage) document.getDocumentCatalog().getAllPages().get(0);
    PDPageContentStream contentStream = new PDPageContentStream(document, page, true, true);

    contentStream.beginText();
    // Draw stuff
    contentStream.endText();

    contentStream.close();
    finalDoc.addPage(page);
    document.close();
}

finalDoc.save(response.getOutputStream());
finalDoc.close();

Any help is greatly appreciated!

Upvotes: 0

Views: 5723

Answers (1)

Drazen Bjelovuk
Drazen Bjelovuk

Reputation: 5472

PDFMergerUtility did the job for me:

PDFMergerUtility finalDoc = new PDFMergerUtility(); 
for (StudentEN student : students) {
    PDDocument document = PDDocument.load("template.pdf");
    PDPage page = (PDPage) document.getDocumentCatalog().getAllPages().get(0);
    PDPageContentStream contentStream = new PDPageContentStream(document, page, true, true);

    contentStream.beginText();
    // Draw stuff
    contentStream.endText();

    contentStream.close();

    ByteArrayOutputStream out = new ByteArrayOutputStream();
    document.save(out);
    finalDoc.addSource(new ByteArrayInputStream(out.toByteArray()));
    document.close();
}

response.setContentType("application/pdf");
finalDoc.setDestinationStream(response.getOutputStream());
finalDoc.mergeDocuments();

Upvotes: 4

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