[Lesen]

I have many ebooks as pdf files. When I create the metadata for them correctly in calibre, and then send the books to my ebook reader, they do not arrive correctly. It doesn't matter what kind of reader or tablet or smartphone it is What is not transferred correctly are the "authors" and the "series". These are simply added to the title. Then when I sort by series on the Reader, those pdf files don't show up here. I have now searched for a long time and have not found a solution. That is why I am turning to you guys. Thanks in advance for the support.