Download and install PhotoPad Photo Editing Software.
Open your image into PhotoPad by pressing Ctrl + O on your keyboard or by dragging and dropping it directly into the program.
On the Tools tab, click the Panorama Tool to open the panorama editor.
To add images, click the Add Image(s) button.
After adding images, you can rearrange their order as needed by clicking the Move Left and Move Right buttons accordingly. Alternatively, you can simply rearrange the order of the images by dragging and dropping.
With the panorama editor, you can also preview the image as needed by clicking the Update and Preview button.
Finally, set the size of the final image by using the Size of the Final Image slider. You can select from 10% to 100% as needed.