Is there a way to make the PDF width and height larger?
You can adjust the settings given below. I think they are self-explanatory.
Other settings such as gutter, marginpar width,
If you need custom paper size, then use
If you want to resize paper you can use:
for pdfLaTeX you shall use lengths
If you just want to put more text in standard paper (i.e. A4, A5) there are lenghts like
PS: First part is optional, second part is mandatory because LaTeX's paper sizes are defined by
PSS: all the sizes like