Parse just an OPF File

[majora2007]

Is there any way to parse JUST an opf file and essentially ignore the Spline, items of the book, etc and any other parts of the epub, so I can get just the metaadata out?

I ask this as Calibre, a popular book software, uses opf to store metadata for books, like epub and pdf. So users of my application have sidecar opf files. I'm trying to judge if I can support this by utilizing this software.

[vers-one]

It is possible to do it by using the PackageReader class. Although, it is internal, so you would probably need to use reflection to use it. You will also need to create an instance of the ZipFile class.

Assuming you have access to PackageReader and ZipFile classes, you can parse an OPF file using this code:

ZipFile epubFile = new(System.IO.Compression.ZipFile.OpenRead(epubFilePath));
PackageReader packageReader = new();
EpubPackage parsedOpfFile = await packageReader.ReadPackageAsync(epubFile, pathToOpfFile);