With Aspose.Pdf we’ve noticed that loading PDF documents for conversion ( var document = new Aspose.Pdf.Document(stream)) takes considerably longer compared to loading MS Office documents in Aspose.Words. For example, loading a large MS Word document (3000+ pages, text only/no images) is up to 6x faster compared to loading the same document converted to PDF. We’ve tested this with Aspose.Words and Aspose.Pdf version 20.x and 21.x.; the machine is not limited in terms of available memory/CPU-power and de input files are loaded from a local NVMe SSD.
Is there any way we can speed up loading PDF documents or is PDF inherently slower to process compared to MS Office documents?