Offers password to every encrypted document opened without credentials of its own.
public PdfOptions WithPassword(string? password)
The user or owner password; null or empty for the default user password only.
ISO 32000-2 §7.6.4.1. To give each document its own password, pass it to Open(String, PdfCredentials) instead. A password that opens neither as the user nor as the owner password makes opening throw PdfPasswordException.