diff --git a/lam/docs/devel/modules-specification.htm b/lam/docs/devel/modules-specification.htm
index f725b6d2..81ef52fe 100644
--- a/lam/docs/devel/modules-specification.htm
+++ b/lam/docs/devel/modules-specification.htm
@@ -1039,6 +1039,110 @@ which should be displayed when this help entry is called.
5. PDF syntax
+The get_pdfEntries() function uses XML formatted commands to define the
+PDF output. Each part in the PDF document is surrounded by "<block>"
+and "</block>".
+
+Inside the <block> tags there are different ways to format the
+output:
+
+ - simple line with attribute name
+and value: <block><key>attribute
+name</key><value>attribute
+value</value></block>
+ - table: <block><key>attribute
+name</key><td>first
+value<td></block><block><td>second
+value</td></block><block><td>third value</td></block>
+
+
+Special commands:
+
+ - Alignment in <td>:
+You can specify the alignment in <td> tags with align=(L|R|C)
+(e.g. <td align=\"L\">)
+ - Line breaks: Line breaks
+can be specified by adding a <br />
+tag. The new line will start at the left border of the PDF document.
+
+
+
+Examples:
+
+1. Simple name+value lines:
+
+In most cases you will just want to display a single line per attribute
+with its name and value.
+
+ 'myAttribute'
+=> '<block><key>AttrName</key><value>12345</value></block>'
+
+This will give the following PDF output: AttrName: 12345
+
+
+2. Multiline values:
+
+Sometimes you have multivalued attributes where it is not applicable to
+write all values in one line but where you want to list your values one
+below the other or show a table.
+This can be done by using the <td> tag. This example only uses
+one column but can just use more <td> tags per <block> tag
+to display more columns.
+
+ 'myAttribute'
+=> '<block><key>AttrName</key><td
+align=\"L\">123</td></block><block><td
+align=\"L\">456</td></block><block><td
+align=\"L\">789</td></block>'
+
+This will give the following PDF output:
+
+
+
+
+ AttrName:
+ |
+ 123
+ |
+
+
+
+ |
+ 456
+ |
+
+
+
+ |
+ 789
+ |
+
+
+
+
+
6. Module meta data