gnu: Add texlive-pdfoverlay.

* gnu/packages/tex.scm (texlive-pdfoverlay): New variable.

gnu/packages/tex.scm

@@ -91787,6 +91787,35 @@ (define-public texlive-pdfmarginpar
 obscured.")
     (license license:gpl3+)))
 
+(define-public texlive-pdfoverlay
+  (package
+    (name "texlive-pdfoverlay")
+    (version (number->string %texlive-revision))
+    (source (texlive-origin
+             name version
+             (list "doc/latex/pdfoverlay/"
+                   "source/latex/pdfoverlay/"
+                   "tex/latex/pdfoverlay/")
+             (base32
+              "1jv6kh19vm2kflvajcridcjn14i00xmgc0wamnhxiz4ias4v72yq")))
+    (outputs '("out" "doc"))
+    (build-system texlive-build-system)
+    (home-page "https://ctan.org/pkg/pdfoverlay")
+    (synopsis "LaTeX style for overlaying text on a PDF")
+    (description
+     "It is often desirable to take an exisiting PDF and easily add annotations or
+text overlaying the PDF.  This might arise if you wish to add comments to
+a PDF, fill in a PDF form, or add text to a PDF where space has been left for
+notes.  This package provides a simple interface to do this without having to
+resort to inserting one page at a time.  Some or all of the pages of the PDF
+can be included and not all pages of the PDF need have overlayed text.  It is
+also possible to include text between pages of the PDF.  Another advantage of
+this package is that the overlayed text can be set as normal flowing from one
+page to another or with manual page breaks if you wish.  It is also possible
+to use any standard method to position text at arbitrary places on a given
+page.")
+    (license license:lppl1.3c)))
+
 ;;;
 ;;; Avoid adding new packages to the end of this file. To reduce the chances
 ;;; of a merge conflict, place them above by existing packages with similar