Hi all
We use Aspose.Pdf.Document to add QR codes on top of existing PDF files.
What we do is roughly the following:
using var document = new Document(streamOfPdfFile);
AddQrCode(document);
document.SaveAsync(streamOf…...of notes: We are using the latest version of Aspose.PDF.Drawing...Ensure that you are using the latest version of the Aspose.PDF library...