OptionalfirstTry an empty password before consulting passwordProvider. Default: true.
OptionalpasswordSupplies passwords for encrypted documents; see PdfPasswordProvider for retry semantics.
OptionalsourceIdentifier used in error messages and for caching purposes.
OptionaltransferTransfer ownership of a full input buffer to the worker. Default: true. Set to false to keep the caller's buffer usable; the engine transfers an internal copy instead.
OptionaluseLoad only the first page eagerly; call PdfDocument.loadPagesProgressively for the rest.
Options for PdfrxEngine.openData; extends PdfOpenOptions with ownership control.