You can use any print to pdf tool.
Tons of freeware out there, just print as you would like you were sending the document to a physical printer, but after install whatever software "PRINT TO PDF" should be a option.
.... you probably could also:
Right click the image and "Open with" --> Paint. From MS Paint you should be able to print it as is.
Or dump and/all jpegs to a powerpoint slide, then save the presentation as a PDF... getting proper image size might be an issue