You'll want to add what's called a gutter. A gutter extra spacing added in addition to the left margin space. The gutter give you extra room so the text of your manuscript does not spill into the binding, making it unreadable.
To add a gutter to the left side of your paper:
- Open Microsoft Word and go to the Page Layout (on Word for Mac it's just Layout) > Margins > Custom Margins
- Look for Gutter and change it to 0.5". Make sure the Gutter Position is set to Left (Note: if your text is meant to be read from right to left, put the gutter on the right side)
- Click OK
You should now have an additional half inch on the left side of your paper; that should be enough for printing.
