Proofreading is the process by which editors and proofeaders take a document, read it, made corrections, additions, changes and notes, before a final text is released. In the past, before the appearance of word processors, and especially software made for writing, editors and proofreaders depended on hard copies to be able to read the text, and correct it. A special format had to be followed by the writer, so that the proofreader and editors could add the corrections and notes to the draft, and then, before the final print-out, a final draft was proofread again to ensure that all corrections had been added. This long and laborious process changed through the on-screen process of proofreading, which allowed not just one, but many people to be able to check documents. However, now, with the computer versions of proofreading, editors and proofreaders do not need to affect the written text at all, but they make comments on the sidelines, through the feature of track changes. Although this has made the process more efficient and effective, when comparing the hard copy process of proofreading, vs the on-screen, one thing that has happened is that the on-screen has turned the process into a mere copy-editing process, instead of a more profound echange of ideas between the authors and proofreaders.