diff --git a/doc/.gitignore b/doc/.gitignore
index 7d30949237..96112ac19c 100644
--- a/doc/.gitignore
+++ b/doc/.gitignore
@@ -1,3 +1,4 @@
+/latex
 /html
 /spelling
 /LAMMPS.epub
diff --git a/doc/Makefile b/doc/Makefile
index d117c2d98c..3bb4c44502 100644
--- a/doc/Makefile
+++ b/doc/Makefile
@@ -56,7 +56,7 @@ clean-all: clean
 	rm -rf $(BUILDDIR)/* utils/txt2html/txt2html.exe
 
 clean:
-	rm -rf $(RSTDIR) html old epub
+	rm -rf $(RSTDIR) html old epub latex
 	rm -rf spelling
 
 clean-spelling:
@@ -115,21 +115,39 @@ mobi: epub
 	@ebook-convert LAMMPS.epub LAMMPS.mobi
 	@echo "Conversion finished. The MOBI manual file is created."
 
-pdf: utils/txt2html/txt2html.exe
+pdf: $(OBJECTS) $(ANCHORCHECK)
+	@(\
+                . $(VENV)/bin/activate ;\
+                cp -r src/* $(RSTDIR)/ ;\
+                sphinx-build $(SPHINXEXTRA) -b latex -c utils/sphinx-config -d $(BUILDDIR)/doctrees $(RSTDIR) latex ;\
+                echo "############################################" ;\
+                doc_anchor_check src/*.txt ;\
+                echo "############################################" ;\
+                deactivate ;\
+	)
+	@cd latex && \
+	  sed -i '' 's/\\begin{equation}//g' LAMMPS.tex && \
+	  sed -i '' 's/\\end{equation}//g' LAMMPS.tex && \
+	  make && \
+	  mv LAMMPS.pdf ../Manual.pdf && \
+	  cd ../; 
 	@(\
-		set -e; \
 		cd src/Developer; \
 		pdflatex developer; \
 		pdflatex developer; \
 		mv developer.pdf ../../Developer.pdf; \
-		cd ..; \
-		../utils/txt2html/txt2html.exe -b *.txt; \
-		htmldoc --batch lammps.book;          \
-		for s in `echo *.txt | sed -e 's/ \(pairs\|bonds\|angles\|dihedrals\|impropers\|commands_list\|fixes\|computes\).txt/ /g' | sed -e 's,\.txt,\.html,g'` ; \
-			do grep -q ^$$s lammps.book || \
-			echo WARNING: doc file $$s missing in src/lammps.book; done; \
-		rm *.html; \
+		cd ../../; \
 	)
+	@rm -rf latex/_sources
+	@rm -rf latex/PDF
+	@rm -rf latex/USER
+	@cp -r src/PDF latex/PDF
+	@cp -r src/USER latex/USER
+	@rm -rf latex/PDF/.[sg]*
+	@rm -rf latex/USER/.[sg]*
+	@rm -rf latex/USER/*/.[sg]*
+	@rm -rf latex/USER/*/*.[sg]*
+	@echo "Build finished. Manual.pdf and Developer.pdf are in this directory."
 
 old: utils/txt2html/txt2html.exe
 	@rm -rf old
diff --git a/doc/src/JPG/coul_soft.jpg b/doc/src/JPG/coul_soft.jpg
index d2cc4c0c9a..618d23b306 100644
Binary files a/doc/src/JPG/coul_soft.jpg and b/doc/src/JPG/coul_soft.jpg differ
diff --git a/doc/src/JPG/lj_soft.jpg b/doc/src/JPG/lj_soft.jpg
index 47c6a04b91..98404f857d 100644
Binary files a/doc/src/JPG/lj_soft.jpg and b/doc/src/JPG/lj_soft.jpg differ
diff --git a/doc/src/JPG/uef_frames.jpg b/doc/src/JPG/uef_frames.jpg
index 3b3bfc3a24..933c3e2925 100644
Binary files a/doc/src/JPG/uef_frames.jpg and b/doc/src/JPG/uef_frames.jpg differ
diff --git a/doc/utils/sphinx-config/conf.py b/doc/utils/sphinx-config/conf.py
index 3056687ff8..736aac3eb9 100644
--- a/doc/utils/sphinx-config/conf.py
+++ b/doc/utils/sphinx-config/conf.py
@@ -211,7 +211,9 @@ latex_elements = {
 #'pointsize': '10pt',
 
 # Additional stuff for the LaTeX preamble.
-#'preamble': '',
+'preamble': r'''
+\setcounter{tocdepth}{2}
+'''
 }
 
 # Grouping the document tree into LaTeX files. List of tuples
@@ -229,7 +231,7 @@ latex_documents = [
 # For "manual" documents, if this is true, then toplevel headings are parts,
 # not chapters.
 #latex_use_parts = False
-
+latex_toplevel_sectioning = 'part'
 # If true, show page references after internal links.
 #latex_show_pagerefs = False