diff --git a/textproc/Makefile b/textproc/Makefile
index 84902bfd0c78..c41caa4e7b74 100644
--- a/textproc/Makefile
+++ b/textproc/Makefile
@@ -1508,6 +1508,7 @@
     SUBDIR += rubygem-asciidoctor
     SUBDIR += rubygem-asciidoctor-diagram
     SUBDIR += rubygem-asciidoctor-include-ext
+    SUBDIR += rubygem-asciidoctor-pdf
     SUBDIR += rubygem-asciidoctor-plantuml
     SUBDIR += rubygem-asciidoctor-plantuml0010
     SUBDIR += rubygem-autoprefixer-rails
diff --git a/textproc/rubygem-asciidoctor-pdf/Makefile b/textproc/rubygem-asciidoctor-pdf/Makefile
new file mode 100644
index 000000000000..8192cb67b0e1
--- /dev/null
+++ b/textproc/rubygem-asciidoctor-pdf/Makefile
@@ -0,0 +1,35 @@
+# Created by: Po-Chuan Hsieh <sunpoet@FreeBSD.org>
+# $FreeBSD$
+
+PORTNAME=	asciidoctor-pdf
+PORTVERSION=	1.5.3
+CATEGORIES=	textproc rubygems
+MASTER_SITES=	RG
+
+MAINTAINER=	sunpoet@FreeBSD.org
+COMMENT=	Convert AsciiDoc documents to PDF
+
+LICENSE=	MIT
+LICENSE_FILE=	${WRKSRC}/LICENSE.adoc
+
+RUN_DEPENDS=	rubygem-asciidoctor>=1.5.3<3.0.0:textproc/rubygem-asciidoctor \
+		rubygem-concurrent-ruby>=1.1.0<1.2:devel/rubygem-concurrent-ruby \
+		rubygem-prawn>=2.2.0<2.3:print/rubygem-prawn \
+		rubygem-prawn-icon>=2.5.0:print/rubygem-prawn-icon \
+		rubygem-prawn-svg>=0.30.0<1:print/rubygem-prawn-svg \
+		rubygem-prawn-table>=0.2.0<0.3:print/rubygem-prawn-table \
+		rubygem-prawn-templates>=0.1.0<0.2:print/rubygem-prawn-templates \
+		rubygem-safe_yaml>=1.0.0<1.1:devel/rubygem-safe_yaml \
+		rubygem-thread_safe>=0.3.0<0.4:devel/rubygem-thread_safe \
+		rubygem-treetop>=1.6.0<1.7:devel/rubygem-treetop \
+		rubygem-ttfunk>=1.5.1<1.6:print/rubygem-ttfunk
+
+USES=		gem
+USE_RUBY=	yes
+
+NO_ARCH=	yes
+
+PLIST_FILES=	bin/asciidoctor-pdf \
+		bin/asciidoctor-pdf-optimize
+
+.include <bsd.port.mk>
diff --git a/textproc/rubygem-asciidoctor-pdf/distinfo b/textproc/rubygem-asciidoctor-pdf/distinfo
new file mode 100644
index 000000000000..793561824870
--- /dev/null
+++ b/textproc/rubygem-asciidoctor-pdf/distinfo
@@ -0,0 +1,3 @@
+TIMESTAMP = 1607539649
+SHA256 (rubygem/asciidoctor-pdf-1.5.3.gem) = 3e70d0e513f4d631a4b667fed634700d93b104e0d3b4c33f993979df6a67d3f1
+SIZE (rubygem/asciidoctor-pdf-1.5.3.gem) = 1931776
diff --git a/textproc/rubygem-asciidoctor-pdf/files/patch-gemspec b/textproc/rubygem-asciidoctor-pdf/files/patch-gemspec
new file mode 100644
index 000000000000..06aec85cb07c
--- /dev/null
+++ b/textproc/rubygem-asciidoctor-pdf/files/patch-gemspec
@@ -0,0 +1,13 @@
+--- asciidoctor-pdf.gemspec.orig	2020-12-10 20:30:01 UTC
++++ asciidoctor-pdf.gemspec
+@@ -28,8 +28,8 @@ Gem::Specification.new do |s|
+       s.add_runtime_dependency(%q<ttfunk>.freeze, ["~> 1.5.0", ">= 1.5.1"])
+       s.add_runtime_dependency(%q<prawn-table>.freeze, ["~> 0.2.0"])
+       s.add_runtime_dependency(%q<prawn-templates>.freeze, ["~> 0.1.0"])
+-      s.add_runtime_dependency(%q<prawn-svg>.freeze, ["~> 0.30.0"])
+-      s.add_runtime_dependency(%q<prawn-icon>.freeze, ["~> 2.5.0"])
++      s.add_runtime_dependency(%q<prawn-svg>.freeze, ["~> 0.30"])
++      s.add_runtime_dependency(%q<prawn-icon>.freeze, [">= 2.5.0"])
+       s.add_runtime_dependency(%q<safe_yaml>.freeze, ["~> 1.0.0"])
+       s.add_runtime_dependency(%q<thread_safe>.freeze, ["~> 0.3.0"])
+       s.add_runtime_dependency(%q<concurrent-ruby>.freeze, ["~> 1.1.0"])
diff --git a/textproc/rubygem-asciidoctor-pdf/pkg-descr b/textproc/rubygem-asciidoctor-pdf/pkg-descr
new file mode 100644
index 000000000000..7c8c35804312
--- /dev/null
+++ b/textproc/rubygem-asciidoctor-pdf/pkg-descr
@@ -0,0 +1,7 @@
+Asciidoctor PDF is a native PDF converter for AsciiDoc. It bypasses the
+requirement to generate an intermediary format such as DocBook, Apache FO, or
+LaTeX. Instead, you can use this extension to convert your documents directly
+from AsciiDoc to PDF. Its aim is to take the pain out of creating PDF documents
+from AsciiDoc.
+
+WWW: https://github.com/asciidoctor/asciidoctor-pdf