diff --git a/src/libslic3r/AppConfig.cpp b/src/libslic3r/AppConfig.cpp
index 177d8d708b..80024da1d6 100644
--- a/src/libslic3r/AppConfig.cpp
+++ b/src/libslic3r/AppConfig.cpp
@@ -39,6 +39,7 @@ static const std::string VERSION_CHECK_URL = "https://files.prusa3d.com/wp-conte
 
 const std::string AppConfig::SECTION_FILAMENTS = "filaments";
 const std::string AppConfig::SECTION_MATERIALS = "sla_materials";
+const std::string AppConfig::SECTION_EMBOSS = "emboss";
 
 void AppConfig::reset()
 {
diff --git a/src/libslic3r/AppConfig.hpp b/src/libslic3r/AppConfig.hpp
index 03c35f35a3..28014c4c17 100644
--- a/src/libslic3r/AppConfig.hpp
+++ b/src/libslic3r/AppConfig.hpp
@@ -168,6 +168,7 @@ public:
 
 	static const std::string SECTION_FILAMENTS;
     static const std::string SECTION_MATERIALS;
+    static const std::string SECTION_EMBOSS;
 
 private:
 	template<typename T>
diff --git a/src/libslic3r/Emboss.cpp b/src/libslic3r/Emboss.cpp
index 0ee7db68b1..270e4ab931 100644
--- a/src/libslic3r/Emboss.cpp
+++ b/src/libslic3r/Emboss.cpp
@@ -57,16 +57,17 @@ std::optional<Emboss::Glyph> Privat::get_glyph(stbtt_fontinfo &font_info, int un
     if (num_verts <= 0) return glyph; // no shape
 
     int *contour_lengths = NULL;
-    int  num_countour    = 0;
+    int  num_countour_int = 0;
 
     stbtt__point *points = stbtt_FlattenCurves(vertices, num_verts,
-        flatness, &contour_lengths, &num_countour, font_info.userdata);
+        flatness, &contour_lengths, &num_countour_int, font_info.userdata);
 
+    size_t   num_contour = static_cast<size_t>(num_countour_int);
     Polygons glyph_polygons;
-    glyph_polygons.reserve(num_countour);
+    glyph_polygons.reserve(num_contour);
     size_t pi = 0; // point index
-    for (size_t ci = 0; ci < num_countour; ++ci) {
-        int    length = contour_lengths[ci];
+    for (size_t ci = 0; ci < num_contour; ++ci) {
+        int length = contour_lengths[ci];
         // check minimal length for triangle
         if (length < 4) {
             // weird font
@@ -77,9 +78,8 @@ std::optional<Emboss::Glyph> Privat::get_glyph(stbtt_fontinfo &font_info, int un
         --length;
         Points pts;
         pts.reserve(length);
-        for (size_t i = 0; i < length; ++i) {
-            const stbtt__point &point = points[pi];
-            ++pi;
+        for (int i = 0; i < length; ++i) {
+            const stbtt__point &point = points[pi++];
             pts.emplace_back(point.x, point.y);
         }
         // last point is first point
diff --git a/src/libslic3r/TextConfigurationSerialization.cpp b/src/libslic3r/TextConfigurationSerialization.cpp
index b6d5804ed1..2271f697e8 100644
--- a/src/libslic3r/TextConfigurationSerialization.cpp
+++ b/src/libslic3r/TextConfigurationSerialization.cpp
@@ -15,94 +15,138 @@ const char TextConfigurationSerialization::separator = '|';
 
 std::string TextConfigurationSerialization::serialize(const TextConfiguration &text_configuration)
 {
-    // IMPROVE: make general and move to string utils
-    auto twice_separator = [](const std::string& data) {
-        // no value is one space
-        if (data.empty()) return std::string(" ");
-        std::string::size_type pos = data.find(separator);
-        if (pos == data.npos) return data;
-        // twice all separator inside data
-        std::string copy = data;
-        do { 
-            copy.insert(pos, 1, separator);
-            pos += 2;
-        } while (copy.npos != (pos = copy.find(separator, pos)));
-        return copy;
-    };
-
-    const FontItem &font_item = text_configuration.font_item;
-    const FontProp &font_prop = text_configuration.font_prop;
-    return twice_separator(text_configuration.text) + separator +
-           twice_separator(font_item.name) + separator +
-           twice_separator(font_item.path) + separator +
-           to_string.at(font_item.type) + separator +
-           std::to_string(font_prop.emboss) + separator +
-           std::to_string(font_prop.flatness) + separator +
-           std::to_string(font_prop.size_in_mm) + separator +
-           std::to_string(font_prop.char_gap) + separator +
-           std::to_string(font_prop.line_gap);
+    size_t size = 1 + 3 + 5;
+    std::vector<std::string> columns;
+    columns.reserve(size);
+    columns.emplace_back(text_configuration.text);
+    to_columns(text_configuration.font_item, columns);
+    to_columns(text_configuration.font_prop, columns);
+    assert(columns.size() == size);
+    return serialize(columns, separator);
 }
 
 std::optional<TextConfiguration> TextConfigurationSerialization::deserialize(const std::string &data)
 {
-    // IMPROVE: make general and move to string utils
-    auto reduce_separator = [](const std::string& item) {
-        std::string::size_type pos = item.find(separator);
-        if (pos == item.npos) return item;
-        std::string copy = item;
-        do {
-            assert(copy[pos] == separator);
-            assert(copy[pos+1] == separator);
-            copy.erase(pos, size_t(1));
-            pos = copy.find(separator, pos + 1);
-        } while (pos != copy.npos);
-        return copy;
-    };
+    size_t size = 1 + 3 + 5;
+    std::vector<std::string> columns;
+    columns.reserve(size);
+    deserialize(data, separator, columns);
+    assert(columns.size() == size);
 
-    std::string::size_type start = 0;
-    auto get_column_and_move = [&data, &start](){
-        // IMPROVE: make function general and move to string utils
-        auto find_separator = [&data](std::string::size_type pos) {
-            pos = data.find(separator, pos);
-            while (pos != data.npos && data[pos + 1] == separator)
-                pos = data.find(separator, pos + 2);
-            return pos;
-        };
+    const std::string& text = columns[0];
+    std::optional<FontItem> font_item = get_font_item(columns, 1);
+    if (!font_item.has_value()) return {};
+    std::optional<FontProp> font_prop = get_font_prop(columns, 4);
+    if (!font_prop.has_value()) return {};
 
-        if (start == data.npos) return std::string();
-        std::string::size_type size = find_separator(start) - start;
-        if (size == 0) return std::string();
-        std::string result = data.substr(start, size);
-        // move start column to next position
-        start += size + 1;
-        return result;
-    };
+    return TextConfiguration(*font_item, *font_prop, text);
+}
 
-    auto get_float_and_move = [&get_column_and_move]() {
-        std::string column = get_column_and_move();
-        if (column.empty()) return 0.f;
-        return static_cast<float>(std::atof(column.c_str()));
-    };
-    auto get_int_and_move = [&get_column_and_move]() {
-        std::string column = get_column_and_move();
-        if (column.empty()) return 0;
-        return std::atoi(column.c_str());
-    };
+std::string TextConfigurationSerialization::serialize(const FontList &font_list)
+{
+    std::vector<std::string> columns;
+    columns.reserve(3 * font_list.size());
+    for (const FontItem &fi : font_list) to_columns(fi, columns);
+    return serialize(columns, separator);
+}
 
-    std::string text = reduce_separator(get_column_and_move());
-    std::string name = reduce_separator(get_column_and_move());
-    std::string path = reduce_separator(get_column_and_move());
-    std::string type = reduce_separator(get_column_and_move());
-    auto it = to_type.find(type);
-    if (it == to_type.end()) return {}; // no valid type
-    FontItem font_item(name,path,it->second);
+FontList TextConfigurationSerialization::deserialize_font_list(const std::string &data)
+{
+    std::vector<std::string> columns;
+    deserialize(data, separator, columns);
+    if ((columns.size() % 3) != 0) return {};
+    size_t   count = columns.size() / 3;
+    FontList fl;
+    fl.reserve(count);
+    for (size_t i = 0; i < count; i++) 
+    {
+        std::optional<FontItem> fi = get_font_item(columns, i * 3);
+        if (!fi.has_value()) return {};
+        fl.emplace_back(*fi);
+    }
+    return fl;
+}
 
+std::string TextConfigurationSerialization::serialize(const std::vector<std::string> &columns, char separator)
+{
+    std::string result;
+    const std::string separator_str = std::string(" ") + separator + ' ';
+    bool is_first = true;
+    for (const std::string& column : columns) {
+        if (is_first) is_first = false;
+        else result += separator_str;
+        result += twice(column, separator);
+    }
+    return result;
+}
+
+void TextConfigurationSerialization::deserialize(const std::string &data, char separator, std::vector<std::string> &columns)
+{
+    if (data.empty()) return;
+
+    size_t position = 0;
+    while (position < data.size()) {
+        size_t start = position;
+        position     = find_odd(data, position+1, separator);
+        size_t size  = position - start;
+
+        // is not last column
+        if (position != data.size()) {
+            assert(size != 0);
+            --size; 
+        }
+        // is not first column
+        if (start != 0) {
+            // previous separator + space = 2
+            start+=2;
+            assert(size >=2);
+            size-=2;
+        }
+
+        std::string column = data.substr(start, size);
+
+        // heal column 
+        columns.emplace_back(reduce(column, separator));
+    }
+}
+
+void TextConfigurationSerialization::to_columns(
+    const FontItem &font_item, std::vector<std::string> &columns)
+{
+    columns.emplace_back(font_item.name);
+    columns.emplace_back(font_item.path);
+    columns.emplace_back(to_string.at(font_item.type));
+}
+
+std::optional<FontItem> TextConfigurationSerialization::get_font_item(
+    const std::vector<std::string> &columns, size_t offset)
+{
+    if (columns.size() <= (offset + 2)) return {}; // no enough columns
+    auto it = to_type.find(columns[offset+2]);
+    FontItem::Type type = (it != to_type.end()) ?
+        it->second : FontItem::Type::undefined;
+    return FontItem(columns[offset], columns[offset + 1], type);
+}
+
+void TextConfigurationSerialization::to_columns(
+    const FontProp& font_prop, std::vector<std::string> &columns)
+{
+    columns.emplace_back(std::to_string(font_prop.emboss));
+    columns.emplace_back(std::to_string(font_prop.flatness));
+    columns.emplace_back(std::to_string(font_prop.size_in_mm));
+    columns.emplace_back(std::to_string(font_prop.char_gap));
+    columns.emplace_back(std::to_string(font_prop.line_gap));
+}
+
+std::optional<FontProp> TextConfigurationSerialization::get_font_prop(
+    const std::vector<std::string> &columns, size_t offset)
+{
+    if (columns.size() <= (offset + 4)) return {}; // no enough columns
     FontProp font_prop;
-    font_prop.emboss     = get_float_and_move();
-    font_prop.flatness   = get_float_and_move();
-    font_prop.size_in_mm = get_float_and_move();
-    font_prop.char_gap   = get_int_and_move();
-    if (start == data.npos) return {}; // no valid data
-    font_prop.line_gap   = get_int_and_move();
-    return TextConfiguration(font_item, font_prop, text);
+    font_prop.emboss     = static_cast<float>(std::atof(columns[offset].c_str()));
+    font_prop.flatness   = static_cast<float>(std::atof(columns[offset+1].c_str()));
+    font_prop.size_in_mm = static_cast<float>(std::atof(columns[offset+2].c_str()));
+    font_prop.char_gap   = static_cast<float>(std::atof(columns[offset+3].c_str()));
+    font_prop.line_gap   = std::atoi(columns[offset+4].c_str());
+    return font_prop;
 }
\ No newline at end of file
diff --git a/src/libslic3r/TextConfigurationSerialization.hpp b/src/libslic3r/TextConfigurationSerialization.hpp
index 2fc0379824..d4b0fec591 100644
--- a/src/libslic3r/TextConfigurationSerialization.hpp
+++ b/src/libslic3r/TextConfigurationSerialization.hpp
@@ -14,16 +14,100 @@ class TextConfigurationSerialization
 {
 public:
     TextConfigurationSerialization() = delete; // only static functions
+
+    // store / load TextConfiguration - .3mf files
     static std::string serialize(const TextConfiguration &text_configuration);
     static std::optional<TextConfiguration> deserialize(const std::string &data);
 
+    // store / load FontList - AppConfig
+    static std::string serialize(const FontList &font_list);
+    static FontList deserialize_font_list(const std::string &data);
+
+private:
     // convert type to string and vice versa
     static const std::map<std::string, FontItem::Type> to_type;
     static const std::map<FontItem::Type, std::string> to_string;
-    
     static const char separator;
+    
+    // store / load general connection of string into one string
+    static std::string serialize(const std::vector<std::string> &columns, char separator);
+    static void deserialize(const std::string& data, char separator, std::vector<std::string> &columns);// columns vector should be reserved on valid count
 
-    // Move to map utils
+    static void to_columns(const FontItem& font_item, std::vector<std::string> &columns);
+    static std::optional<FontItem> get_font_item(const std::vector<std::string> &columns, size_t offset);
+
+    static void to_columns(const FontProp& font_prop, std::vector<std::string> &columns);
+    static std::optional<FontProp> get_font_prop(const std::vector<std::string> &columns, size_t offset);
+
+    /// <summary>
+    /// Twice all appearance of character in data.
+    /// Twiced character could be used as separator for this data.
+    /// IMPROVE: move to string utils
+    /// </summary>
+    /// <param name="data">input data to twice character</param>
+    /// <param name="letter">Specify character to be twiced in data</param>
+    /// <returns>String conatin only pair continous count of specified character</returns>
+    static std::string twice(const std::string &data, char letter) 
+    {
+        // no value is one space
+        if (data.empty()) return std::string(" ");
+        std::string::size_type pos = data.find(letter);
+        if (pos == data.npos) return data;
+        // twice all separator inside data
+        std::string copy = data; // copy
+        do {
+            copy.insert(pos, 1, letter);
+            pos += 2;
+        } while (copy.npos != (pos = copy.find(letter, pos)));
+        return copy;
+    };
+
+    /// <summary>
+    /// Reduce all twice appearance of character in data.
+    /// Main purpose heal after twice function.
+    /// IMPROVE: move to string utils
+    /// </summary>
+    /// <param name="data">input data to reduce character</param>
+    /// <param name="letter">Specify character to be reduced</param>
+    /// <returns>String conatining only half letter in row</returns>
+    static std::string reduce(const std::string &data, char letter)
+    {
+        std::string::size_type pos = data.find(letter);
+        if (pos == data.npos) return data;
+        std::string copy = data; // copy
+        do {
+            assert(copy[pos] == letter);
+            assert(copy[pos + 1] == letter);
+            copy.erase(pos, size_t(1));
+            pos = copy.find(letter, pos + 1);
+        } while (pos != copy.npos);
+        return copy;
+    };
+
+    /// <summary>
+    /// Find odd position of letter in text data
+    /// Used with combination of twice and reduce
+    /// IMPROVE: move to string utils
+    /// </summary>
+    /// <param name="data">Input text</param>
+    /// <param name="pos">Start index into data for searching odd letter</param>
+    /// <param name="letter">Character to find</param>
+    /// <returns>Index to data with next odd appearance of letter 
+    /// OR size of data when NO next one exists</returns>
+    static size_t find_odd(const std::string &data, size_t pos, char letter)
+    {
+        pos = data.find(letter, pos);
+        while ((pos+1) <= data.size() && data[pos + 1] == letter)
+            pos = data.find(letter, pos + 2);
+        return pos;
+    }
+
+    /// <summary>
+    /// Create map with swaped key-value
+    /// IMPROVE: Move to map utils
+    /// </summary>
+    /// <param name="map">Input map</param>
+    /// <returns>Map with swapped key-value</returns>
     template<typename Key, typename Value>
     static std::map<Value, Key> create_oposit_map(
         const std::map<Key, Value> &map)
diff --git a/src/slic3r/GUI/Gizmos/GLGizmoEmboss.cpp b/src/slic3r/GUI/Gizmos/GLGizmoEmboss.cpp
index a2c3e4ab0d..8192f5410b 100644
--- a/src/slic3r/GUI/Gizmos/GLGizmoEmboss.cpp
+++ b/src/slic3r/GUI/Gizmos/GLGizmoEmboss.cpp
@@ -13,6 +13,8 @@
 
 #include "libslic3r/Model.hpp"
 #include "libslic3r/ClipperUtils.hpp" // union_ex
+#include "libslic3r/AppConfig.hpp" // store/load font list
+#include "libslic3r/TextConfigurationSerialization.hpp" // store/load font list
 
 #include "imgui/imgui_stdlib.h" // using std::string for inputs
 #include "nanosvg/nanosvg.h" // load SVG file
@@ -77,7 +79,7 @@ GLGizmoEmboss::GLGizmoEmboss(GLCanvas3D &parent)
     , m_volume_type(ModelVolumeType::MODEL_PART)
     , m_is_initialized(false) // initialize on first opening gizmo
 {
-    // TODO: suggest to use https://fontawesome.com/
+    // TODO: add suggestion to use https://fontawesome.com/
     // (copy & paste) unicode symbols from web
 }
 
@@ -152,16 +154,10 @@ void GLGizmoEmboss::initialize()
     if (m_is_initialized) return;
     m_is_initialized = true;
 
+    load_font_list();    
+
     m_gui_cfg.emplace(GuiCfg());
 
-    m_font_list = {{"NotoSans Regular", Slic3r::resources_dir() + "/fonts/NotoSans-Regular.ttf"}
-        , {"NotoSans CJK", Slic3r::resources_dir() + "/fonts/NotoSansCJK-Regular.ttc"}
-#ifdef USE_FONT_DIALOG
-        , WxFontUtils::get_font_item(wxFont(5, wxFONTFAMILY_DEFAULT, wxFONTSTYLE_NORMAL, wxFONTWEIGHT_NORMAL))
-        , WxFontUtils::get_font_item(wxFont(10, wxFONTFAMILY_MODERN, wxFONTSTYLE_NORMAL, wxFONTWEIGHT_BOLD))
-        , WxFontUtils::get_os_font()
-#endif // USE_FONT_DIALOG
-    };
     m_font_selected = 0;
 
     bool is_font_loaded = load_font();
@@ -177,6 +173,37 @@ void GLGizmoEmboss::initialize()
     set_default_configuration();
 }
 
+
+void GLGizmoEmboss::load_font_list() 
+{
+    AppConfig *cfg = wxGetApp().app_config;
+    std::string font_list_str = cfg->get(AppConfig::SECTION_EMBOSS, M_APP_CFG_FONT_LIST);
+    if (!font_list_str.empty()) {
+        std::optional<FontList> fl = TextConfigurationSerialization::deserialize_font_list(font_list_str);
+        if (fl.has_value()) m_font_list = *fl;
+    }
+    if (m_font_list.empty()) m_font_list = create_default_font_list();
+}
+
+void GLGizmoEmboss::store_font_list()
+{ 
+    AppConfig *cfg = wxGetApp().app_config; 
+    std::string font_list_str = TextConfigurationSerialization::serialize(m_font_list);
+    cfg->set(AppConfig::SECTION_EMBOSS, M_APP_CFG_FONT_LIST, font_list_str);
+}
+
+FontList GLGizmoEmboss::create_default_font_list() {
+    return {
+        {"NotoSans Regular", Slic3r::resources_dir() + "/fonts/NotoSans-Regular.ttf"}
+        , {"NotoSans CJK", Slic3r::resources_dir() + "/fonts/NotoSansCJK-Regular.ttc"}
+#ifdef USE_FONT_DIALOG
+        , WxFontUtils::get_font_item(wxFont(5, wxFONTFAMILY_DEFAULT, wxFONTSTYLE_NORMAL, wxFONTWEIGHT_NORMAL))
+        , WxFontUtils::get_font_item(wxFont(10, wxFONTFAMILY_MODERN, wxFONTSTYLE_NORMAL, wxFONTWEIGHT_BOLD))
+        , WxFontUtils::get_os_font()
+#endif // USE_FONT_DIALOG
+    };
+}
+
 void GLGizmoEmboss::set_default_configuration() {
     m_text = _u8L("Embossed text");
     m_font_prop = FontProp();
@@ -226,10 +253,12 @@ ModelVolume *GLGizmoEmboss::get_selected_volume(const Selection &selection,
     const GLVolume *             vol_gl    = selection.get_volume(vol_id_gl);
     const GLVolume::CompositeID &id        = vol_gl->composite_id;
 
-    if (id.object_id >= objects.size()) return nullptr;
+    if (id.object_id < 0 || static_cast<size_t>(id.object_id) >= objects.size())
+        return nullptr;
     ModelObject *object = objects[id.object_id];
 
-    if (id.volume_id >= object->volumes.size()) return nullptr;
+    if (id.volume_id < 0 || static_cast<size_t>(id.volume_id) >= object->volumes.size()) 
+        return nullptr;
     return object->volumes[id.volume_id];
 }
 
@@ -384,12 +413,14 @@ void GLGizmoEmboss::draw_font_list()
 #ifdef USE_FONT_DIALOG
         if (ImGui::Button(_L("Choose font").c_str())) {
             choose_font_by_wxdialog();
+            store_font_list();
             ImGui::CloseCurrentPopup();
         } else if (ImGui::IsItemHovered()) ImGui::SetTooltip(_L("Choose from installed font in dialog.").c_str());
         ImGui::SameLine();
 #endif // USE_FONT_DIALOG
         if (ImGui::Button(_L("Add File").c_str())) {
             choose_true_type_file();
+            store_font_list();
             ImGui::CloseCurrentPopup();
         } else if (ImGui::IsItemHovered()) ImGui::SetTooltip(_L("add file with font(.ttf, .ttc)").c_str());
         
@@ -411,7 +442,7 @@ void GLGizmoEmboss::draw_font_list()
                 auto pos_x = ImGui::GetCursorPosX();
                 // add rename button
                 ImGui::SetCursorPosX(140);
-                if (ImGui::Button("rename")) rename_index = index;             
+                if (ImGui::Button("rename")) rename_index = index;
 
                 ImGui::SameLine();
                 ImGui::SetCursorPosX(200);
@@ -420,6 +451,7 @@ void GLGizmoEmboss::draw_font_list()
                     m_font_list.erase(m_font_list.begin() + index);
                     // fix selected index
                     if (index < m_font_selected) --m_font_selected;
+                    store_font_list();
                 }
                 m_imgui->disabled_end(); // exist_rename || is_selected
                 ImGui::SameLine();
@@ -469,8 +501,11 @@ void GLGizmoEmboss::draw_font_list()
     if (ImGui::BeginPopupModal(rename_popup_id)) {
         ImGui::Text("Rename font name:");
         FontItem &fi = m_font_list[rename_id];
-        if (ImGui::InputText("##font name", &fi.name, ImGuiInputTextFlags_EnterReturnsTrue) || ImGui::Button("ok")) 
-            ImGui::CloseCurrentPopup();        
+        if (ImGui::InputText("##font name", &fi.name, ImGuiInputTextFlags_EnterReturnsTrue) ||
+            ImGui::Button("ok")){ 
+            ImGui::CloseCurrentPopup();
+            store_font_list();
+        }
         ImGui::EndPopup();
     }
 }
@@ -845,5 +880,7 @@ ExPolygons NSVGUtils::to_ExPolygons(NSVGimage *image,
     return Slic3r::union_ex(polygons);
 }
 
+const std::string GLGizmoEmboss::M_APP_CFG_FONT_LIST = "font_list";
+
 // any existing icon filename to not influence GUI
 const std::string GLGizmoEmboss::M_ICON_FILENAME = "cut.svg";
diff --git a/src/slic3r/GUI/Gizmos/GLGizmoEmboss.hpp b/src/slic3r/GUI/Gizmos/GLGizmoEmboss.hpp
index 796d3b2264..ef12b90fc4 100644
--- a/src/slic3r/GUI/Gizmos/GLGizmoEmboss.hpp
+++ b/src/slic3r/GUI/Gizmos/GLGizmoEmboss.hpp
@@ -34,6 +34,9 @@ protected:
 
 private:
     void initialize();
+    void load_font_list();
+    void store_font_list();
+    static FontList create_default_font_list();
     void set_default_configuration();
     void check_selection();
     // more general function --> move to select
@@ -101,7 +104,8 @@ private:
 
     // initialize when GL is accessible
     bool m_is_initialized;
-    
+
+    static const std::string M_APP_CFG_FONT_LIST;
     // only temporary solution
     static const std::string M_ICON_FILENAME;
 };