As described above, graphics content can be imported into LaTeX from outside programs as EPS files. But sometimes you want to edit or retouch these graphics files. An EPS file can be edited with any text editor since it is formatted as ASCII. In a text editor, you can achieve simple operations like replacing strings, changing the bounding box, or moving items slightly, but anything further becomes cumbersome. Vector graphics editors, like Inkscape, may also be able to import EPS files for subsequent editing. This approach also for easier editing. However, the importing process may occasionally modify the original EPS image.
TeX is a computer program for typesetting documents, created by Donald Knuth . It takes a suitably prepared computer file and converts it to a form which may be printed on many kinds of printers, including dot-matrix printers, laser printers and high-resolution typesetting machines. LaTeX is a set of macros for TeX that aims at reducing the user's task to the sole role of writing the content, LaTeX taking care of all the formatting process. A number of well-established publishers now use TeX or LaTeX to typeset books and mathematical journals. It is also well appreciated by users caring about typography, consistent formatting, efficient collaborative writing and open formats.
My biggest complaint with LaTeX is that I haven’t yet found a nice LaTeX analog to Word’s track-changes functionality. However, the TeX community is getting closer to a solution. One site I’ve found useful is , which allows multiple collaborators to revise a .tex document online, and compile it on the fly (so, you can see the .pdf at the sharelatex site, right next to the .tex file that produced it). It works great for documents that are primarily text and bibliographies, but I haven’t pushed it too far yet.