Change font and font size

The document must use Times New Roman 12 for body text and Arial 14 for headings. Go through the draft and change every paragraph that looks like running body copy to Times New Roman 12, and convert all headings marked by paragraph style Heading 1 and Heading 2 to Arial 14. Leave block quotes and tables in their current fonts. Double-check two sample pages for consistency before you finish.

Before I hand this to the editor, make the typography consistent and obvious: move the typeface change into a short note at the top, show one before paragraph and one after paragraph so the editor can see the swap, and flag any text where font size changes inside a single paragraph. If any headings shrink or grow more than two points from others, call that out as a potential style error.

I just got an email from Professor Chen saying the submission must be in 12-point Times New Roman, but the draft has a mix of fonts and some headings already look better in Arial. I am worried if I change everything automatically I will break the layout in tables and captions, and I cannot tell which paragraphs are meant as body vs. caption. Which items should I change first, what checks prevent damaging captions or tables, and what is the fastest safe order to finish before tomorrow 9am?

Across dozens of student and team drafts we waste hours manually normalizing fonts and sizes and then chase corrections. Where am I losing the most time and causing the most rework — initial submission checks, inconsistent templates, or late style edits — and what three habits should I change right away so future documents arrive correctly formatted without repeated manual fixes?