THPDFJobProcessor.ExecuteLoadedOperation
Executes one operation against a borrowed loaded document
class function ExecuteLoadedOperation(Document: THotPDF;
Op: THPDFJSONValue; Output: TStream = nil;
Checkpoint: TNotifyEvent = nil): THPDFJSONValue; static;The unit is HPDFDocJobs; the caller keeps ownership of the document, operation, output stream, and returned result
Binary results such as rendered PNG bytes are written to Output when supplied, while JSON results are returned as a THPDFJSONKind object tree
The optional checkpoint event runs throughout the operation and preserves cancellation and budget exceptions for cooperative abort
Comparison operations that need a second document use ExecuteLoadedOperationWithComparison, and signing with an explicit timestamp transport uses ExecuteLoadedSigningOperation