diff --git a/reference/pdf/functions/pdf-open-png.xml b/reference/pdf/functions/pdf-open-png.xml
deleted file mode 100644
index c720bca11d..0000000000
--- a/reference/pdf/functions/pdf-open-png.xml
+++ /dev/null
@@ -1,38 +0,0 @@
-<?xml version="1.0" encoding="iso-8859-1"?>
-<!-- $Revision: 1.4 $ -->
-<!-- splitted from ./en/functions/pdf.xml, last change in rev 1.42 -->
-  <refentry id="function.pdf-open-png">
-   <refnamediv>
-    <refname>pdf_open_png</refname>
-    <refpurpose>
-     Open PNG image [not supported]
-    </refpurpose>
-   </refnamediv>
-   <refsect1 role="description">
-    &reftitle.description;
-    <para>
-     This function is not supported, use <function>pdf_load_image</function>.
-    </para>
-   </refsect1>
-  </refentry>
-
-<!-- Keep this comment at the end of the file
-Local variables:
-mode: sgml
-sgml-omittag:t
-sgml-shorttag:t
-sgml-minimize-attributes:nil
-sgml-always-quote-attributes:t
-sgml-indent-step:1
-sgml-indent-data:t
-indent-tabs-mode:nil
-sgml-parent-document:nil
-sgml-default-dtd-file:"../../../../manual.ced"
-sgml-exposed-tags:nil
-sgml-local-catalogs:nil
-sgml-local-ecat-files:nil
-End:
-vim600: syn=xml fen fdm=syntax fdl=2 si
-vim: et tw=78 syn=sgml
-vi: ts=1 sw=1
--->
diff --git a/reference/pdf/functions/pdf-open.xml b/reference/pdf/functions/pdf-open.xml
deleted file mode 100644
index 74a6e1a122..0000000000
--- a/reference/pdf/functions/pdf-open.xml
+++ /dev/null
@@ -1,37 +0,0 @@
-<?xml version="1.0" encoding="iso-8859-1"?>
-<!-- $Revision: 1.4 $ -->
-<!-- splitted from ./en/functions/pdf.xml, last change in rev 1.42 -->
-  <refentry id="function.pdf-open">
-   <refnamediv>
-    <refname>pdf_open</refname>
-    <refpurpose>Open PDFlib object [not supported]</refpurpose>
-   </refnamediv>
-   <refsect1 role="description">
-    &reftitle.description;
-    <para>
-     This function is not supported, use <function>pdf_new</function>
-     plus <function>pdf_open_file</function>.
-    </para>
-   </refsect1>
-  </refentry>
-
-<!-- Keep this comment at the end of the file
-Local variables:
-mode: sgml
-sgml-omittag:t
-sgml-shorttag:t
-sgml-minimize-attributes:nil
-sgml-always-quote-attributes:t
-sgml-indent-step:1
-sgml-indent-data:t
-indent-tabs-mode:nil
-sgml-parent-document:nil
-sgml-default-dtd-file:"../../../../manual.ced"
-sgml-exposed-tags:nil
-sgml-local-catalogs:nil
-sgml-local-ecat-files:nil
-End:
-vim600: syn=xml fen fdm=syntax fdl=2 si
-vim: et tw=78 syn=sgml
-vi: ts=1 sw=1
--->
diff --git a/reference/pdf/functions/pdf-set-font.xml b/reference/pdf/functions/pdf-set-font.xml
deleted file mode 100644
index e5ec703e0d..0000000000
--- a/reference/pdf/functions/pdf-set-font.xml
+++ /dev/null
@@ -1,37 +0,0 @@
-<?xml version="1.0" encoding="iso-8859-1"?>
-<!-- $Revision: 1.4 $ -->
-<!-- splitted from ./en/functions/pdf.xml, last change in rev 1.42 -->
-  <refentry id="function.pdf-set-font">
-   <refnamediv>
-    <refname>pdf_set_font</refname>
-    <refpurpose>Select font and size [not supported]</refpurpose>
-   </refnamediv>
-   <refsect1 role="description">
-    &reftitle.description;
-    <para>
-     This function is not supported, use <function>pdf_load_font</function>
-     plus <function>pdf_setfont</function> instead.
-    </para>
-   </refsect1>
-  </refentry>
-
-<!-- Keep this comment at the end of the file
-Local variables:
-mode: sgml
-sgml-omittag:t
-sgml-shorttag:t
-sgml-minimize-attributes:nil
-sgml-always-quote-attributes:t
-sgml-indent-step:1
-sgml-indent-data:t
-indent-tabs-mode:nil
-sgml-parent-document:nil
-sgml-default-dtd-file:"../../../../manual.ced"
-sgml-exposed-tags:nil
-sgml-local-catalogs:nil
-sgml-local-ecat-files:nil
-End:
-vim600: syn=xml fen fdm=syntax fdl=2 si
-vim: et tw=78 syn=sgml
-vi: ts=1 sw=1
--->