5.5 Decoraciones de página y marcas de agua

We cover two kinds of page decorations that are sometimes needed: putting watermarks, i.e., some material on all or some pages and adding crop marks, as often needed in the printing process. The draftwatermark package uses the shipout hooks of LaTEX discussed in Appendix A.4.1 on page →II 680.

5.5.1 draftwatermark - Pon un sello visible en tu documento

In some situations it is important to clearly mark each page of a publication, for example to indicate that something is a draft, confidential, uncontrolled copy, etc. Another scenario is marking individual copies with the name of its owner to prevent (or at least track) unauthorized distribution. Such texts are commonly known as watermarks because historically they have been produced not during the printing process but during the paper production while being still in a wet state, hence “water” mark.

With draftwatermark Sergio Callegari provides a package that helps you to produce electronic watermarks in your LaTEX documents. In its simplest form all you have to do is to load the package, and it then stamps every page of your document with the word “DRAFT” in large gray letters diagonally across each page.

The package obeys the option final when present as a document class or

5.5.2 crop - Producir marcas de recorte

When producing camera-ready copy for publication, the final printing is normally done on “stock paper” having a larger size than the logical page size of the document. In that case the printed copy needs trimming before it is finally bound. For accurate trimming the printing house usually requires so-called crop marks on each page. Another reason for requiring crop marks is the task of mounting two or more logical pages onto a physical one, such as in color production where different colors are printed separately.

The crop package created by Melchior Franz supports these tasks by providing a simple interface for producing different kinds of crop marks. It also offers the ability to print only the text or only the graphics from a document, and the chance of inverting, mirroring, or rotating the output, among other things — all features useful during that part of the printing process.

Crop marks can be requested by using one of the following options:

cam Produces four marks that show the logical paper dimensions without touching them (see Example 5-5-3 on the following page). They are mainly intended for camera alignment.

cross Produces four large crosses at the corners of the logical page touching its edges. It is intended as a trimming help printed on a separate piece of paper.