Why "Replace All" needs a second look
Replace All is fast, but it's also blunt β it doesn't understand context, only character matches. Changing "run" to "execute" everywhere, for instance, will also catch "running" or "runner" if you're not careful, turning them into garbled words. Before hitting Replace All on a long document, it's worth running one "Find Next β Replace" cycle first to confirm the match pattern behaves the way you expect.
Match case and whole-word options, explained
Enabling "Match case" makes the search treat "Apple" and "apple" as different strings, which matters when a term is also a proper noun. "Find whole words only" prevents a short search term from matching as a fragment inside a longer word β searching for "cat" won't also flag "category" or "vacation." Combining both options is the safest way to run a mass replacement on a document with mixed capitalization or overlapping terms.
Frequently Asked Questions
Can I undo a Replace All if it changes too much?
Yes β pressing Ctrl+Z (Cmd+Z on Mac) right after running Replace All will undo the entire batch of replacements in one step, as long as you haven't made other edits in between.
Can Find and Replace also change formatting, not just text?
Yes β the advanced options let you search for text with specific formatting (like bold or a certain font) and replace it with different formatting, not just different words.