* A/D to turn the page, if there are some unsaved changes made to current page, the program will save the rendered image, saving a large image could freeze the program for a little while.
* A/D to turn the page
* Ctrl+Z, Ctrl+Y to undo/redo most operations, note the undo stack will be cleared after you turn the page.
* Click the "T" button on the bottom toolbar to enter/leave text-editing mode, press W to activate text block creating mode, then drag the mouse on the canvas with the right button clicked to add a new text block. (see the text editing gif)
* In the image editing mode, use the slider on the right bottom to control the original image transparency.