Unlike the "PDF to Images" function, which saves each page of document as a whole "Snapshot", this tool only takes the original image objects from PDF file. Each image is saved in JPEG or BMP format at the output directory.
Go to the "Operations" section of the program, and choose "Extract Images" item. If you want to process all pages, choose the "Process all pages" option. If you want to process specific pages, choose the second option, and enter the page range.
For example: 1, 2, 6-8.
When ready, click the "Extract" button to start the process.