1. An electronic-manual browsing apparatus comprising: an electronic-manual-display processing section that displays, on an electronic-manual display screen on a display section, an electronic manual for a control apparatus including a sample program concerning the control apparatus, the sample program retaining content of the sample program and information for displaying the sample program in a graphic form on the display section; a program-creation-screen-display processing section that displays, on the display section, a program creation screen for creating a program used in the control apparatus; and a program copy section that copies the sample program in the electronic manual selected according to an instruction from a user and temporarily stores the sample program, wherein the sample program is program-attached data for program display in which program data, which is content of the sample program, is embedded by a method of electronic watermark in data for program display, which is image data of the sample program, the electronic-manual-display processing section displays the data for program display in the program-attached data for program display as the sample program in the electronic-manual display screen, when copying is instructed for the data for program display, which is image data of the sample program in the electronic-manual display screen, the program copy section acquires, from the program-attached data for program display, the program data corresponding to a range selected on the data for program display and stores the program data, and the program-creation-screen-display processing section pastes the program data stored by the program copy section in the program creation screen and converts the program data into program data of a graphic form and displays the program data on the display section.