Can use the attached document (after unzip) and following code to reproduce. Tested in v24.10.0.
var bytes = File.ReadAllBytes(@"input.doc");
using MemoryStream ms = new MemoryStream();
ms.Write(bytes, 0, bytes.Length);…...Aspose.Words hangs indefinitely when saving as PDF Aspose.Words...Length); Aspose.Words.Document document = new Aspose.Words.Document(ms);...