Hi,
I am using Aspose.Pdf.Kit in product version 2007.10.08, file version 2.6.3.0.
When I concat e.g. three pdf documents of size:
1/ 43 kB
2/ 34 kB
3/ 74 kB
1 + 2 + 3 will be 151 kB of aprox. expected size of the concatenated pdf.
But the size of the concatenated pdf is 256 kB.
When I concat e.g. five files of sum size of 600 kB then I get 1 MB file after concatenation.
Questions:
- why is the concatenated file larger then expected?
- can this increase in size after concatenation of pdfs be avoided?
Thank you!
Kind regards, Daniel Dusek
Code I use to concatenate the pdfs:
private byte[] ConcatenatePdfDocuments(IEnumerable documents)
{
var notEmptyDocuments = documents.Where(d => d.PDF.Length > 0);
var outStream = new MemoryStream();
_pdfEditor.Concatenate(notEmptyDocuments.Select(document => new MemoryStream(document.PDF)).ToArray(), outStream);
var buffer = outStream.GetBuffer();
outStream.Close();
return buffer;
}
The function receives pdf documents as byte array, creates one memory stream from those byte arrays and calls the Concatenate method of Aspose.Pdf.Kit.