diff --git a/zanata-war/src/main/java/org/zanata/adapter/GenericOkapiFilterAdapter.java b/zanata-war/src/main/java/org/zanata/adapter/GenericOkapiFilterAdapter.java
index 26e4d05d3f..42f6282d59 100644
--- a/zanata-war/src/main/java/org/zanata/adapter/GenericOkapiFilterAdapter.java
+++ b/zanata-war/src/main/java/org/zanata/adapter/GenericOkapiFilterAdapter.java
@@ -50,6 +50,8 @@
 import org.zanata.rest.dto.resource.TranslationsResource;
 import org.zanata.util.HashUtil;
 
+import com.google.common.base.Optional;
+
 /**
  * An adapter that uses a provided {@link IFilter} implementation to parse documents.
  * 
@@ -119,6 +121,12 @@ public GenericOkapiFilterAdapter(IFilter filter, IdSource idSource, boolean requ
 
    @Override
    public Resource parseDocumentFile(URI documentContent, LocaleId sourceLocale) throws FileFormatAdapterException, IllegalArgumentException
+   {
+      return parseDocumentFile(documentContent, sourceLocale, Optional.<String>absent());
+   }
+
+   public Resource parseDocumentFile(URI documentContent, LocaleId sourceLocale,
+         Optional<String> params) throws FileFormatAdapterException, IllegalArgumentException
    {
       // null documentContent is handled by RawDocument constructor
       if (sourceLocale == null)
@@ -133,7 +141,7 @@ public Resource parseDocumentFile(URI documentContent, LocaleId sourceLocale) th
       List<TextFlow> resources = document.getTextFlows();
 
       RawDocument rawDoc = new RawDocument(documentContent, "UTF-8", net.sf.okapi.common.LocaleId.fromString("en"));
-
+      updateParams(params);
       try
       {
          filter.open(rawDoc);
@@ -183,6 +191,12 @@ private String stripPath(String name)
 
    @Override
    public TranslationsResource parseTranslationFile(URI fileUri, String localeId) throws FileFormatAdapterException, IllegalArgumentException
+   {
+      return parseTranslationFile(fileUri, localeId, Optional.<String>absent());
+   }
+
+   public TranslationsResource parseTranslationFile(URI fileUri, String localeId,
+         Optional<String> params) throws FileFormatAdapterException, IllegalArgumentException
    {
       if (localeId == null || localeId.isEmpty())
       {
@@ -190,14 +204,14 @@ public TranslationsResource parseTranslationFile(URI fileUri, String localeId) t
       }
 
       RawDocument rawDoc = new RawDocument(fileUri, "UTF-8", net.sf.okapi.common.LocaleId.fromString("en"));
-      return parseTranslationFile(rawDoc);
+      return parseTranslationFile(rawDoc, params);
    }
 
-   private TranslationsResource parseTranslationFile(RawDocument rawDoc)
+   private TranslationsResource parseTranslationFile(RawDocument rawDoc, Optional<String> params)
    {
       TranslationsResource transRes = new TranslationsResource();
       List<TextFlowTarget> translations = transRes.getTextFlowTargets();
-
+      updateParams(params);
       try
       {
          filter.open(rawDoc);
@@ -235,6 +249,13 @@ else if (event.getEventType() == EventType.TEXT_UNIT)
 
    @Override
    public void writeTranslatedFile(OutputStream output, URI originalFile, Map<String, TextFlowTarget> translations, String locale)
+   {
+      writeTranslatedFile(output, originalFile, translations, locale, Optional.<String>absent());
+   }
+
+   public void writeTranslatedFile(OutputStream output, URI originalFile,
+         Map<String, TextFlowTarget> translations, String locale, Optional<String> params)
+               throws FileFormatAdapterException, IllegalArgumentException
    {
       net.sf.okapi.common.LocaleId localeId = net.sf.okapi.common.LocaleId.fromString(locale);
       IFilterWriter writer = filter.createFilterWriter();
@@ -242,16 +263,18 @@ public void writeTranslatedFile(OutputStream output, URI originalFile, Map<Strin
 
       if (requireFileOutput)
       {
-         writeTranslatedFileWithFileOutput(output, originalFile, translations, localeId, writer);
+         writeTranslatedFileWithFileOutput(output, originalFile, translations, localeId, writer, params);
       }
       else
       {
          writer.setOutput(output);
-         generateTranslatedFile(originalFile, translations, localeId, writer);
+         generateTranslatedFile(originalFile, translations, localeId, writer, params);
       }
    }
 
-   private void writeTranslatedFileWithFileOutput(OutputStream output, URI originalFile, Map<String, TextFlowTarget> translations, net.sf.okapi.common.LocaleId localeId, IFilterWriter writer)
+   private void writeTranslatedFileWithFileOutput(OutputStream output, URI originalFile,
+         Map<String, TextFlowTarget> translations, net.sf.okapi.common.LocaleId localeId,
+         IFilterWriter writer, Optional<String> params)
    {
       File tempFile = null;
 
@@ -259,7 +282,7 @@ private void writeTranslatedFileWithFileOutput(OutputStream output, URI original
       {
          tempFile = File.createTempFile("filename", "extension");
          writer.setOutput(tempFile.getCanonicalPath());
-         generateTranslatedFile(originalFile, translations, localeId, writer);
+         generateTranslatedFile(originalFile, translations, localeId, writer, params);
 
          byte[] buffer = new byte[4096]; // To hold file contents
          int bytesRead;
@@ -293,10 +316,11 @@ private void writeTranslatedFileWithFileOutput(OutputStream output, URI original
 
    }
 
-   private void generateTranslatedFile(URI originalFile, Map<String, TextFlowTarget> translations, net.sf.okapi.common.LocaleId localeId, IFilterWriter writer)
+   private void generateTranslatedFile(URI originalFile, Map<String, TextFlowTarget> translations,
+         net.sf.okapi.common.LocaleId localeId, IFilterWriter writer, Optional<String> params)
    {
       RawDocument rawDoc = new RawDocument(originalFile, "UTF-8", net.sf.okapi.common.LocaleId.fromString("en"));
-
+      updateParams(params);
       try
       {
          filter.open(rawDoc);
@@ -353,4 +377,15 @@ protected String getIdFor(TextUnit tu, String subDocName)
          return tu.getId();
       }
    }
+
+   private void updateParams(Optional<String> params)
+   {
+      filter.getParameters().reset();
+      if (params.isPresent())
+      {
+         filter.getParameters().fromString(params.get());
+      }
+      log.info("filter parameters: " + filter.getParameters());
+   }
+
 }