The concatenation of two pdf/a documents doesn't produce a pdf/a

Aspose.PDF Product Family
1

I need to create a new pdf/a document by merging two existing pdfs/a, but the result is not a pdf/a (aspose-pdf-18.12-jdk17). Where is my mistake?

com.aspose.pdf.Document doc1 = new com.aspose.pdf.Document(“SimpleDoc.pdf”);
com.aspose.pdf.Document doc2 = new com.aspose.pdf.Document(“SimpleDoc.pdf”);

doc1.getPages().add(doc2.getPages());

doc1.saveIncrementally(“Result.pdf”);

Thanks in advance
Marco

2

@mrossato

Could you please share your sample PDF documents with us. So that we can test the scenario in our environment and address it accordingly.

3

Here is the example file and the result obtained

Result.pdf (72.2 KB)
SimpleDoc.pdf (16.4 KB)

Thanks,
Marco

4

@mrossato

You can please convert document into PDF/A format after concatenation is done. We have used same approach to generate PDF/A file after concatenating two PDF/A documents as following:

Document doc1 = new Document(dataDir + "SimpleDoc.pdf");
Document doc2 = new Document(dataDir + "SimpleDoc.pdf");
doc1.getPages().add(doc2.getPages());
doc1.convert(dataDir + "log.xml", PdfFormat.PDF_A_1B, ConvertErrorAction.Delete);
doc1.save(dataDir + "Concatenated2.pdf");
doc1.close();

In case this approach does not suit you, please let us know. We will proceed further to assist you accordingly.