Creating portfolios

[vidigal]

Is it possible to create portfolios ("a package of other PDFs files") using OpenPDF?

[andreasrosdal]

[mkl-public]

            PdfWriter writer = PdfWriter.getInstance(document, new FileOutputStream(portfolioFile));
            document.open();
            PdfCopy copy = new PdfCopy(document, new FileOutputStream(portfolioFile));

This is something one should never do, creating both a PdfWriter and a PdfCopy writing to the same output file concurrently.

According to chatgbp.

Ah, that explains the error.

[mkl-public]

Hhmmm, I assume what the OP meant actually is a portable collection (see ISO 32000-2 section 12.3.5 Collections), not a simple merge. In Acrobat these collections are called portfolios (see Acrobat Combine tool, Options, "Save as PDF Portfolio").

These portable collections contain other files as attachments and also have some extra data from which a PDF viewer can build an interface to access those attachments.

[andreasrosdal]

See the collection package:
https://github.com/LibrePDF/OpenPDF/tree/b6f81c1d4c8d19010184788219e24a3c34565079/openpdf/src/main/java/com/lowagie/text/pdf/collection