diff --git a/.github/workflows/CI.yml b/.github/workflows/CI.yml
index 4981d526082..3185b684a48 100644
--- a/.github/workflows/CI.yml
+++ b/.github/workflows/CI.yml
@@ -100,9 +100,11 @@ jobs:
         with:
           packages: |
             scheme-medium
+            bookmark
             hyperref
             minted
             newunicodechar
+            selnolig
             transparent
             upquote
             tabulary
diff --git a/CHANGELOG.md b/CHANGELOG.md
index c5aff274cb5..6a2fc0fa616 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -8,6 +8,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 ### Added
 
 * Support self-hosted GitHub instances. ([#2755])
+* Improved PDF typography: `microtype` for character protrusion and font expansion, `selnolig` for ligature suppression, `bookmark` for improved PDF bookmarks, page headers with chapter/section names, and `friendly` Pygments theme for syntax-highlighted code blocks. ([#2906])
 
 
 ## Version [v1.17.0] - 2026-02-20
diff --git a/assets/latex/documenter.sty b/assets/latex/documenter.sty
index a5376af1087..15e0563d300 100644
--- a/assets/latex/documenter.sty
+++ b/assets/latex/documenter.sty
@@ -9,6 +9,14 @@
 % DejaVu Sans instead.
 \newfontfamily\unicodeveebarfont{DejaVu Sans}[Scale=MatchLowercase]
 \newcommand\unicodeveebar{{\unicodeveebarfont ⊻}}
+
+% typography: enable microtypographic enhancements (character protrusion,
+% font expansion, tracking) for improved paragraph layout and justification.
+\usepackage{microtype}
+\microtypesetup{nopatch=item} % avoid interaction with memoir's list formatting
+
+% suppress inappropriate ligatures (LuaLaTeX only)
+\usepackage{selnolig}
 %
 
 % colours
@@ -38,6 +46,7 @@
     frame = none,
     bgcolor = codeblock-background,
     rulecolor=codeblock-border,
+    style = friendly,
 }
 %
 
@@ -56,6 +65,8 @@
     urlcolor = dark-purple,
     colorlinks = true,
 }
+% improved PDF bookmarks (must be loaded after hyperref)
+\usepackage{bookmark}
 %
 
 % table of contents
@@ -72,6 +83,14 @@
 \setlrmarginsandblock{1.5in}{1in}{*}
 \setheaderspaces{1in}{*}{*}
 \checkandfixthelayout
+
+% page headers: show chapter and section for navigation
+\makepagestyle{documenter}
+\makeevenhead{documenter}{\thepage}{}{\slshape\leftmark}
+\makeoddhead{documenter}{\slshape\rightmark}{}{\thepage}
+\makeevenfoot{documenter}{}{}{}
+\makeoddfoot{documenter}{}{}{}
+\pagestyle{documenter}
 %
 
 % images etc.