using(var exractor = TextExtractor.Open("example.pdf")) 
{
    // Call the Extract method for a non async execution
    var text = extractor.Extract();

    // Call the ExtractAsync method to execute asynchronosly
    var text = await extractor.ExtractAsync();
}

// There are many overloads for TextExtractor.Open

// You can pass in just the file path and a new FileStream will be created
TextExtractor.Open(string filepath)

// You can pass in your own FileStream
TextExtractor.Open(FileStream filestream)

// You can pass in a Stream and the content type wil be extracted from the bytes
TextExtractor.Open(Stream stream)

// You can pass in the bytes and the content type, content types can be accessed via the static `ContentType` class
TextExtractor.Open(byte[] bytes, string contentType)

// You can pass in a raw byte array and the content type wil be extracted
TextExtractor.Open(byte[] bytes)

// You can pass in a Readonly memory of bytes and the content type wil be extracted
TextExtractor.Open(ReadOnlyMemory<byte> bytes)