GetRecommendedV8Flags 函式

Returns the V8 command-line flags PDFium expects when its bundled V8 engine is used.

Pass to v8::V8::SetFlagsFromString before any V8 initialization in a C++ host; not normally needed from Delphi.

Wraps the corresponding PDFium API and exposes it as a TPdf instance member so consumers do not have to manage FPDF_DOCUMENT handles directly.

• Always check Pdf1.Active before calling page-scoped operations; methods that require an open document raise EPdfError otherwise.
• Document-edit methods (AddPage / DeletePage / UpdatePage / CreateAnnotation) leave the in-memory document dirty — remember to call SaveToFile to persist.
• Class methods (LoadLibrary / UnloadLibrary / GetRecommendedV8Flags) can be called without a TPdf instance.