diff --git a/app/src/main/java/com/wbrawner/simplemarkdown/presentation/MarkdownPresenter.kt b/app/src/main/java/com/wbrawner/simplemarkdown/presentation/MarkdownPresenter.kt
index 0cffc0a..d621ecd 100644
--- a/app/src/main/java/com/wbrawner/simplemarkdown/presentation/MarkdownPresenter.kt
+++ b/app/src/main/java/com/wbrawner/simplemarkdown/presentation/MarkdownPresenter.kt
@@ -12,25 +12,24 @@ import java.io.OutputStream
 interface MarkdownPresenter {
     var fileName: String
     var markdown: String
-    fun loadMarkdown(fileName: String, `in`: InputStream)
     fun loadFromUri(context: Context, fileUri: Uri)
 
-    fun loadMarkdown(fileName: String, `in`: InputStream, listener: FileLoadedListener,
-                     replaceCurrentFile: Boolean)
+    fun loadMarkdown(
+            fileName: String,
+            `in`: InputStream,
+            listener: FileLoadedListener? = null,
+            replaceCurrentFile: Boolean = true
+    )
 
     fun newFile(newName: String)
     fun setEditView(editView: MarkdownEditView)
     fun setPreviewView(previewView: MarkdownPreviewView)
-
     fun saveMarkdown(listener: MarkdownSavedListener, name: String, outputStream: OutputStream)
-    fun onMarkdownEdited()
-    fun onMarkdownEdited(markdown: String)
-    fun generateHTML(): String
-    fun generateHTML(markdown: String): String
+    fun onMarkdownEdited(markdown: String? = null)
+    fun generateHTML(markdown: String? = null): String
 
     interface FileLoadedListener {
         fun onSuccess(markdown: String)
-
         fun onError()
     }
 
diff --git a/app/src/main/java/com/wbrawner/simplemarkdown/presentation/MarkdownPresenterImpl.java b/app/src/main/java/com/wbrawner/simplemarkdown/presentation/MarkdownPresenterImpl.java
index f9059a1..c34796c 100644
--- a/app/src/main/java/com/wbrawner/simplemarkdown/presentation/MarkdownPresenterImpl.java
+++ b/app/src/main/java/com/wbrawner/simplemarkdown/presentation/MarkdownPresenterImpl.java
@@ -35,11 +35,6 @@ public class MarkdownPresenterImpl implements MarkdownPresenter {
         }
     }
 
-    @Override
-    public void loadMarkdown(final String fileName, final InputStream in) {
-        this.loadMarkdown(fileName, in, null, true);
-    }
-
     @Override
     public void loadMarkdown(
             final String fileName,
@@ -62,7 +57,7 @@ public class MarkdownPresenterImpl implements MarkdownPresenter {
                             currentEditView.onFileLoaded(true);
                             currentEditView.setTitle(fileName);
                             currentEditView.setMarkdown(this.file.getContent());
-                            onMarkdownEdited();
+                            onMarkdownEdited(null);
                         }
                     }
                 }
@@ -91,7 +86,7 @@ public class MarkdownPresenterImpl implements MarkdownPresenter {
     @Override
     public void setEditView(MarkdownEditView editView) {
         this.editView = editView;
-        onMarkdownEdited();
+        onMarkdownEdited(null);
     }
 
     @Override
@@ -126,16 +121,11 @@ public class MarkdownPresenterImpl implements MarkdownPresenter {
         Runnable generateMarkdown = () -> {
             MarkdownPreviewView currentPreviewView = previewView;
             if (currentPreviewView != null)
-                currentPreviewView.updatePreview(generateHTML());
+                currentPreviewView.updatePreview(generateHTML(null));
         };
         fileHandler.post(generateMarkdown);
     }
 
-    @Override
-    public String generateHTML() {
-        return generateHTML(getMarkdown());
-    }
-
     @Override
     public String generateHTML(String markdown) {
         AndDown andDown = new AndDown();
@@ -145,11 +135,6 @@ public class MarkdownPresenterImpl implements MarkdownPresenter {
         return andDown.markdownToHtml(markdown, HOEDOWN_FLAGS, 0);
     }
 
-    @Override
-    public void onMarkdownEdited() {
-        onMarkdownEdited(getMarkdown());
-    }
-
     @Override
     public String getFileName() {
         synchronized (fileLock) {
@@ -200,7 +185,7 @@ public class MarkdownPresenterImpl implements MarkdownPresenter {
             if (fileName == null) {
                 fileName = "Untitled.md";
             }
-            loadMarkdown(fileName, in);
+            loadMarkdown(fileName, in, null, true);
         } catch (Exception e) {
             errorHandler.reportException(e);
             MarkdownEditView currentEditView = editView;