Won TeX source make it easy to plagiarize?
There is no file format or other technological device that can protect you from this. At the very least, unscrupulous re-typers would always remain a threat. Postscript does not provide a barrier in any event: it is quite simple for someone with a little knowledge to extract any text from a Postscript file. Moreover a plagiarist who cuts-and-pastes directly from your TeX source is all the more easily detected, since the source is easily identified. We archive all versions of papers so that we can assist in any priority or plagiarism disputes.