Opens the PDF file held by stream, from its current position, with default options.
public static PdfDocument Open(Stream stream)
The stream. It is not disposed; keep it open and unchanged until the document is disposed.
ISO 32000-2 §7.5. A seekable stream is read in place as objects are used, under a lock (a is memory-mapped instead); a non-seekable stream is copied first, into memory up to StreamBufferLimit and into a temporary file beyond it.