The attached file is a PDF created by SnagIt, a screen capture tool that can export to PDFs. It hAs invalid creation date and modified date properties - they are both set to an empty string, which is not an invalid date.…...The attached file is a PDF created by SnagIt, a screen capture tool that can export to PDFs. It has invalid creation date and modified date properties - they are both set to an empty string, which is not an invalid date.…