Trimming a PDF online with LaTeX: new feature added

I added a new chance to my LaTeX script that trims empty spaces from every PDF interactively and visually: the option to add the page number in the bottom of the final cropped PDF. It is also possible to do the cut online thanks to Overleaf. And now by editing two variables: it is possible to turn on/off the page number feature and to adjust its distance from the bottom of the page.