diff --git a/doc/source/_styles/pdf.style b/doc/source/_styles/pdf.style
index 159f6a0..340f8bf 100644
--- a/doc/source/_styles/pdf.style
+++ b/doc/source/_styles/pdf.style
@@ -170,39 +170,39 @@
 
     toc7:
       parent: toc
-      leftIndent: 100
+      leftIndent: 120
 
     toc8:
       parent: toc
-      leftIndent: 100
+      leftIndent: 140
 
     toc9:
       parent: toc
-      leftIndent: 100
+      leftIndent: 160
 
     toc10:
       parent: toc
-      leftIndent: 100
+      leftIndent: 160
 
     toc11:
       parent: toc
-      leftIndent: 100
+      leftIndent: 160
 
     toc12:
       parent: toc
-      leftIndent: 100
+      leftIndent: 160
 
     toc13:
       parent: toc
-      leftIndent: 100
+      leftIndent: 160
 
     toc14:
       parent: toc
-      leftIndent: 100
+      leftIndent: 160
 
     toc15:
       parent: toc
-      leftIndent: 100
+      leftIndent: 160
 
     footer:
       parent: normal
@@ -320,7 +320,7 @@
       parent: heading
       fontName: stdBold
       textColor: #D32F1A
-      fontSize: 200%
+      fontSize: 250%
       spaceBefore: 30
       spaceAfter: 30
 
@@ -328,20 +328,21 @@
       parent: heading
       fontName: stdBold
       textColor: #D32F1A
-      fontSize: 150%
+      fontSize: 180%
       spaceBefore: 20
       spaceAfter: 14
 
     heading3:
       parent: heading
       fontName: stdBold
-      fontSize: 125%
+      fontSize: 140%
       spaceBefore: 12
       spaceAfter: 8
 
     heading4:
       parent: heading
       fontName: stdBold
+      fontSize: 115%
       spaceBefore: 12
       spaceBefore: 8
 
@@ -481,6 +482,7 @@
 
     table-body:
       parent : normal
+      fontSize: 8
 
     dedication:
       parent : normal
diff --git a/doc/source/conf.py b/doc/source/conf.py
index 728958b..f953a90 100644
--- a/doc/source/conf.py
+++ b/doc/source/conf.py
@@ -432,3 +432,5 @@ pdf_use_numbered_links = False
 
 # Background images fitting mode
 pdf_fit_background_mode = 'scale'
+
+pdf_default_dpi = 72
diff --git a/tools/build_pdf.sh b/tools/build_pdf.sh
new file mode 100755
index 0000000..b131f33
--- /dev/null
+++ b/tools/build_pdf.sh
@@ -0,0 +1,11 @@
+#!/bin/bash -xe
+
+# copy sources to temporary folder
+TEMP_DIR="$(mktemp -d)"
+cp -r doc/source/* ${TEMP_DIR}
+
+# convert SVG to PNG
+find ${TEMP_DIR} -name *svg | sed "s/\.svg$//" | xargs -I% cairosvg "%.svg" -f pdf -o "%.pdf"
+
+# run Sphinx
+sphinx-build -b pdf ${TEMP_DIR} doc/build/pdf
diff --git a/tox.ini b/tox.ini
index 22ff7a2..3bae8bb 100644
--- a/tox.ini
+++ b/tox.ini
@@ -25,9 +25,17 @@ commands = flake8
 
 [testenv:docs]
 commands =
-    sphinx-build -b html doc/source/ doc/build/html
-    sphinx-build -b latex doc/source/ doc/build/latex
-    sphinx-build -b pdf doc/source/ doc/build/pdf
+    python setup.py build_sphinx
+
+[testenv:pdf]
+deps =
+    cairosvg
+    lxml
+    tinycss
+    cssselect
+    rst2pdf
+whitelist_externals = bash
+commands = bash tools/build_pdf.sh
 
 [flake8]
 show-source = true