diff --git a/imixs-archive-exporter/README.md b/imixs-archive-exporter/README.md
index 53bc872..5c68943 100644
--- a/imixs-archive-exporter/README.md
+++ b/imixs-archive-exporter/README.md
@@ -16,11 +16,20 @@ The Imixs-Archive-Exporter is controlled by corresponding [EventLog Entries](htt
60000
my-documents/
+ \.pdf$
```
-On each corresponding worklfow event a new event log entry `file.export` will be created. The Imixs-Archive-Exporter periodically check this event log entries and exports the corresponding files into a configured data space.
+On each corresponding workflow event a new event log entry `file.export` will be created. The Imixs-Archive-Exporter periodically check this event log entries and exports the corresponding files into a configured data space.
+
+## Path
+
+The optional event parameter `path` can be used to specify the target path for the file to be exported.
+
+## Filter
+
+The optional event parameter `filter` can be used to specify a regular expression to match the file name. This option can be used to export only a part of file from a workitem. For example the regular expression `\.pdf$` exports only files with the suffix '.pdf'.
# Configuration
diff --git a/imixs-archive-exporter/src/main/java/org/imixs/archive/export/services/SchedulerService.java b/imixs-archive-exporter/src/main/java/org/imixs/archive/export/services/SchedulerService.java
index 81b4550..62c1b1d 100644
--- a/imixs-archive-exporter/src/main/java/org/imixs/archive/export/services/SchedulerService.java
+++ b/imixs-archive-exporter/src/main/java/org/imixs/archive/export/services/SchedulerService.java
@@ -26,6 +26,8 @@
import java.util.Map;
import java.util.Optional;
import java.util.logging.Logger;
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
import org.eclipse.microprofile.config.inject.ConfigProperty;
import org.eclipse.microprofile.metrics.MetricRegistry;
@@ -232,11 +234,17 @@ public void onTimeout(jakarta.ejb.Timer _timer) {
id = eventLogEntry.getItemValueString("id");
ref = eventLogEntry.getItemValueString("ref");
String path = "";
+ String filter = "";
+ Pattern pattern = null;
// test if we have a data structure with a path information
List