Opens the remote PDF file at uri through HTTP range requests.
public static Task<PdfDocument> OpenAsync(HttpClient httpClient, Uri uri, CancellationToken cancellationToken)
The client the requests go through; not disposed. It stays in use until the document is disposed.
The file's address.
Cancels the requests made while opening.
Spec #33, viewer capability 5. The same as OpenAsync(HttpClient, Uri, CancellationToken) on an engine with default options.