Library iTextSharp could not process from HTML to PDF. Probably used HTML Tags are not possible to process. Please change code HTML Could not find a part of the path 'D:\xxxxx\xxxx\xxx.jpg'.System.Private.CoreLib.
is related with wrong path of the image. If you want to fix it, please provide the full path of image, i.e https://yourstore.com/content/uploaded.file.jpg