From Longman Dictionary of Contemporary Englishreformatre‧for‧mat /ˌriːˈfɔːmæt $ -ɔːr-/ verb (reformatted, reformatting) [transitive] if you reformat a document, you change the way it is organized or arranged, for example the amount of space between lines The first seven books will all be condensed and reformatted for electronic reading.→ See Verb table
Examples from the Corpus
reformat• Because of this, the converted document is much easier to reformat and edit.• If you accidentally reformat characters wrongly, undo the reformatting straight away.• When you turn on the column feature, the document will reformat, placing two columns of addresses side by side.• For example, you could double the width of the margins or reformat the text into several columns. 