The partiture won't fit in the page

I connected my computer to a HDMI to view my partiture on the classroom and ever since whenever I try to view it on a page it just won't fit, you can't even see a whole bar in one full page (I'll leave an image attaged).
There's a string quartet coming sometime soon and I'll need to print the whole and the parts of my piece and I can't figure out a way to make it smaller. Help.