If you want to share your image through web but don't want it to be modified by others, you need to transform your image to PDF that's difficult to edit. Maybe you don't know how to convert JPEG to PDF, or don't know which tool is suitable for you! Here I would recommend PDFBat JPEG to PDF Converter to you!
This program is an advanced and highly efficient tool to convert JPEG to PDF, PNG to PDF, and JPG to PDF, etc. It is vastly competent in batch conversion and incorporates intuitive and intellectual interface with swiftly accessible toolbar along with lots of specific features, including Image Size-Position, PDF page size, individual or common PDF document, black & white color, rotation, meta information, security settings. It is an entirely standalone utility which converts image to PDF without additional software such as Acrobat Reader.