diff --git a/src/api/lstmboxrenderer.cpp b/src/api/lstmboxrenderer.cpp
index fa77248dee..6ddb8f09ac 100644
--- a/src/api/lstmboxrenderer.cpp
+++ b/src/api/lstmboxrenderer.cpp
@@ -3,7 +3,7 @@
  * Description: Renderer for creating box file for LSTM training.
  *              based on the tsv renderer.
  *
- * (C) Copyright 2006, Google Inc.
+ * (C) Copyright 2019, Google Inc.
  ** Licensed under the Apache License, Version 2.0 (the "License");
  ** you may not use this file except in compliance with the License.
  ** You may obtain a copy of the License at
@@ -35,14 +35,13 @@ static void AddBoxToLSTM(int right, int bottom, int top, int image_height,
   text->add_str_int(" ", page_num);
 }
 
-char* TessBaseAPI::GetLSTMBoxText(int page_number) {
+char* TessBaseAPI::GetLSTMBoxText(int page_number=0) {
   if (tesseract_ == nullptr || (page_res_ == nullptr && Recognize(nullptr) < 0))
     return nullptr;
 
   STRING lstm_box_str("");
-  int page_num = page_number;
   bool first_word = true;
-  int left, top, right, bottom;
+  int left = 0, top = 0, right = 0, bottom = 0;
 
   LTRResultIterator* res_it = GetLTRIterator();
   while (!res_it->Empty(RIL_BLOCK)) {
@@ -54,14 +53,14 @@ char* TessBaseAPI::GetLSTMBoxText(int page_number) {
       if (!(res_it->IsAtBeginningOf(RIL_TEXTLINE))) {
         if (res_it->IsAtBeginningOf(RIL_WORD)) {
           lstm_box_str.add_str_int("  ", left);
-          AddBoxToLSTM(right, bottom, top, image_height_, page_num,
+          AddBoxToLSTM(right, bottom, top, image_height_, page_number,
                        &lstm_box_str);
           lstm_box_str += "\n";  // end of row for word
         }                        // word
       } else {
         if (res_it->IsAtBeginningOf(RIL_TEXTLINE)) {
           lstm_box_str.add_str_int("\t ", left);
-          AddBoxToLSTM(right, bottom, top, image_height_, page_num,
+          AddBoxToLSTM(right, bottom, top, image_height_, page_number,
                        &lstm_box_str);
           lstm_box_str += "\n";  // end of row for line
         }                        // line
@@ -76,12 +75,14 @@ char* TessBaseAPI::GetLSTMBoxText(int page_number) {
       res_it->Next(RIL_SYMBOL);
     } while (!res_it->Empty(RIL_BLOCK) && !res_it->IsAtBeginningOf(RIL_SYMBOL));
     lstm_box_str.add_str_int(" ", left);
-    AddBoxToLSTM(right, bottom, top, image_height_, page_num, &lstm_box_str);
+    AddBoxToLSTM(right, bottom, top, image_height_, page_number, &lstm_box_str);
     lstm_box_str += "\n";  // end of row for symbol
   }
-  lstm_box_str.add_str_int("\t ", left);
-  AddBoxToLSTM(right, bottom, top, image_height_, page_num, &lstm_box_str);
-  lstm_box_str += "\n";  // end of PAGE
+  if (!first_word) {  // if first_word is true  => empty page
+    lstm_box_str.add_str_int("\t ", left);
+    AddBoxToLSTM(right, bottom, top, image_height_, page_number, &lstm_box_str);
+    lstm_box_str += "\n";  // end of PAGE
+  }
   char* ret = new char[lstm_box_str.length() + 1];
   strcpy(ret, lstm_box_str.string());
   delete res_it;
diff --git a/src/api/wordstrboxrenderer.cpp b/src/api/wordstrboxrenderer.cpp
index 73878901bc..ef0dbf86c3 100644
--- a/src/api/wordstrboxrenderer.cpp
+++ b/src/api/wordstrboxrenderer.cpp
@@ -3,7 +3,7 @@
  * Description: Renderer for creating box file with WordStr strings.
  *              based on the tsv renderer.
  *
- * (C) Copyright 2006, Google Inc.
+ * (C) Copyright 2019, Google Inc.
  ** Licensed under the Apache License, Version 2.0 (the "License");
  ** you may not use this file except in compliance with the License.
  ** You may obtain a copy of the License at
@@ -28,13 +28,13 @@ namespace tesseract {
  * file. Returned string must be freed with the delete [] operator.
  */
 
-char* TessBaseAPI::GetWordStrBoxText(int page_number) {
+char* TessBaseAPI::GetWordStrBoxText(int page_number=0) {
   if (tesseract_ == nullptr || (page_res_ == nullptr && Recognize(nullptr) < 0))
     return nullptr;
 
   STRING wordstr_box_str("");
-  int left, top, right, bottom;
-  int page_num = page_number;
+  int left = 0, top = 0, right = 0, bottom = 0;
+
   bool first_line = true;
 
   LTRResultIterator* res_it = GetLTRIterator();
@@ -44,24 +44,24 @@ char* TessBaseAPI::GetWordStrBoxText(int page_number) {
       continue;
     }
 
+    // Use bounding box for whole line for WordStr
+    res_it->BoundingBox(RIL_TEXTLINE, &left, &top, &right, &bottom);
     if (res_it->IsAtBeginningOf(RIL_TEXTLINE)) {
       if (!first_line) {
         wordstr_box_str.add_str_int("\n\t ", right + 1);
         wordstr_box_str.add_str_int(" ", image_height_ - bottom);
         wordstr_box_str.add_str_int(" ", right + 5);
         wordstr_box_str.add_str_int(" ", image_height_ - top);
-        wordstr_box_str.add_str_int(" ", page_num);  // row for tab for EOL
+        wordstr_box_str.add_str_int(" ", page_number);  // row for tab for EOL
         wordstr_box_str += "\n";
       } else {
         first_line = false;
       }
-      // Use bounding box for whole line for WordStr
-      res_it->BoundingBox(RIL_TEXTLINE, &left, &top, &right, &bottom);
       wordstr_box_str.add_str_int("WordStr ", left);
       wordstr_box_str.add_str_int(" ", image_height_ - bottom);
       wordstr_box_str.add_str_int(" ", right);
       wordstr_box_str.add_str_int(" ", image_height_ - top);
-      wordstr_box_str.add_str_int(" ", page_num);  // word
+      wordstr_box_str.add_str_int(" ", page_number);  // word
       wordstr_box_str += " #";
     }
     do {
@@ -71,12 +71,15 @@ char* TessBaseAPI::GetWordStrBoxText(int page_number) {
       res_it->Next(RIL_WORD);
     } while (!res_it->Empty(RIL_BLOCK) && !res_it->IsAtBeginningOf(RIL_WORD));
   }
-  wordstr_box_str.add_str_int("\n\t ", right + 1);
-  wordstr_box_str.add_str_int(" ", image_height_ - bottom);
-  wordstr_box_str.add_str_int(" ", right + 5);
-  wordstr_box_str.add_str_int(" ", image_height_ - top);
-  wordstr_box_str.add_str_int(" ", page_num);  // row for tab for EOL
-  wordstr_box_str += "\n";
+
+  if (left != 0 && top != 0 && right != 0 && bottom != 0) {
+    wordstr_box_str.add_str_int("\n\t ", right + 1);
+    wordstr_box_str.add_str_int(" ", image_height_ - bottom);
+    wordstr_box_str.add_str_int(" ", right + 5);
+    wordstr_box_str.add_str_int(" ", image_height_ - top);
+    wordstr_box_str.add_str_int(" ", page_number);  // row for tab for EOL
+    wordstr_box_str += "\n";
+  }
   char* ret = new char[wordstr_box_str.length() + 1];
   strcpy(ret, wordstr_box_str.string());
   delete res_it;