diff --git a/.luacheckrc b/.luacheckrc
index c162021f6..570307fa9 100644
--- a/.luacheckrc
+++ b/.luacheckrc
@@ -71,9 +71,19 @@ read_globals = {
     "DCREREADER_CONFIG_LIGHTER_FONT_GAMMA",
     "DCREREADER_CONFIG_DEFAULT_FONT_GAMMA",
     "DCREREADER_CONFIG_DARKER_FONT_GAMMA",
+    "DCREREADER_CONFIG_LINE_SPACE_PERCENT_X_TINY",
+    "DCREREADER_CONFIG_LINE_SPACE_PERCENT_TINY",
+    "DCREREADER_CONFIG_LINE_SPACE_PERCENT_XX_SMALL",
+    "DCREREADER_CONFIG_LINE_SPACE_PERCENT_X_SMALL",
     "DCREREADER_CONFIG_LINE_SPACE_PERCENT_SMALL",
+    "DCREREADER_CONFIG_LINE_SPACE_PERCENT_L_SMALL",
     "DCREREADER_CONFIG_LINE_SPACE_PERCENT_MEDIUM",
+    "DCREREADER_CONFIG_LINE_SPACE_PERCENT_L_MEDIUM",
+    "DCREREADER_CONFIG_LINE_SPACE_PERCENT_XL_MEDIUM",
+    "DCREREADER_CONFIG_LINE_SPACE_PERCENT_XXL_MEDIUM",
     "DCREREADER_CONFIG_LINE_SPACE_PERCENT_LARGE",
+    "DCREREADER_CONFIG_LINE_SPACE_PERCENT_X_LARGE",
+    "DCREREADER_CONFIG_LINE_SPACE_PERCENT_XX_LARGE",
     "DCREREADER_CONFIG_WORD_GAP_SMALL",
     "DCREREADER_CONFIG_WORD_GAP_MEDIUM",
     "DCREREADER_CONFIG_WORD_GAP_LARGE",
diff --git a/defaults.lua b/defaults.lua
index 02353bfce..c8683a774 100644
--- a/defaults.lua
+++ b/defaults.lua
@@ -126,9 +126,19 @@ DCREREADER_CONFIG_MARGIN_SIZES_X_HUGE = {140, 140, 140, 140}
 -- DCREREADER_CONFIG_DARKER_FONT_GAMMA = 25
 
 -- crereader line space percentage
+DCREREADER_CONFIG_LINE_SPACE_PERCENT_X_TINY = 70
+DCREREADER_CONFIG_LINE_SPACE_PERCENT_TINY = 75
+DCREREADER_CONFIG_LINE_SPACE_PERCENT_XX_SMALL = 80
+DCREREADER_CONFIG_LINE_SPACE_PERCENT_X_SMALL = 85
 DCREREADER_CONFIG_LINE_SPACE_PERCENT_SMALL = 90
+DCREREADER_CONFIG_LINE_SPACE_PERCENT_L_SMALL = 95
 DCREREADER_CONFIG_LINE_SPACE_PERCENT_MEDIUM = 100
+DCREREADER_CONFIG_LINE_SPACE_PERCENT_L_MEDIUM = 105
+DCREREADER_CONFIG_LINE_SPACE_PERCENT_XL_MEDIUM = 110
+DCREREADER_CONFIG_LINE_SPACE_PERCENT_XXL_MEDIUM = 115
 DCREREADER_CONFIG_LINE_SPACE_PERCENT_LARGE = 120
+DCREREADER_CONFIG_LINE_SPACE_PERCENT_X_LARGE = 125
+DCREREADER_CONFIG_LINE_SPACE_PERCENT_XX_LARGE = 130
 
 -- word gap percentage
 DCREREADER_CONFIG_WORD_GAP_SMALL = 50
diff --git a/frontend/apps/reader/modules/readerfont.lua b/frontend/apps/reader/modules/readerfont.lua
index bb7a1f66b..cebc15c61 100644
--- a/frontend/apps/reader/modules/readerfont.lua
+++ b/frontend/apps/reader/modules/readerfont.lua
@@ -233,7 +233,7 @@ function ReaderFont:onSetFontSize(new_size)
 end
 
 function ReaderFont:onSetLineSpace(space)
-    self.line_space_percent = math.min(200, math.max(80, space))
+    self.line_space_percent = math.min(200, math.max(50, space))
     UIManager:show(Notification:new{
         text = T( _("Line spacing set to %1%."), self.line_space_percent),
         timeout = 2,
diff --git a/frontend/ui/data/creoptions.lua b/frontend/ui/data/creoptions.lua
index dd6fc36a1..4ae484b8a 100644
--- a/frontend/ui/data/creoptions.lua
+++ b/frontend/ui/data/creoptions.lua
@@ -92,18 +92,39 @@ Note that your selected font size is not affected by this setting.]]),
             {
                 name = "line_spacing",
                 name_text = S.LINE_SPACING,
-                toggle = {S.SMALL, S.MEDIUM, S.LARGE},
+                buttonprogress = true,
                 values = {
+                    DCREREADER_CONFIG_LINE_SPACE_PERCENT_X_TINY,
+                    DCREREADER_CONFIG_LINE_SPACE_PERCENT_TINY,
+                    DCREREADER_CONFIG_LINE_SPACE_PERCENT_XX_SMALL,
+                    DCREREADER_CONFIG_LINE_SPACE_PERCENT_X_SMALL,
                     DCREREADER_CONFIG_LINE_SPACE_PERCENT_SMALL,
+                    DCREREADER_CONFIG_LINE_SPACE_PERCENT_L_SMALL,
                     DCREREADER_CONFIG_LINE_SPACE_PERCENT_MEDIUM,
+                    DCREREADER_CONFIG_LINE_SPACE_PERCENT_L_MEDIUM,
+                    DCREREADER_CONFIG_LINE_SPACE_PERCENT_XL_MEDIUM,
+                    DCREREADER_CONFIG_LINE_SPACE_PERCENT_XXL_MEDIUM,
                     DCREREADER_CONFIG_LINE_SPACE_PERCENT_LARGE,
+                    DCREREADER_CONFIG_LINE_SPACE_PERCENT_X_LARGE,
+                    DCREREADER_CONFIG_LINE_SPACE_PERCENT_XX_LARGE,
                 },
+                default_pos = 7,
                 default_value = DCREREADER_CONFIG_LINE_SPACE_PERCENT_MEDIUM,
                 event = "SetLineSpace",
                 args = {
+                    DCREREADER_CONFIG_LINE_SPACE_PERCENT_X_TINY,
+                    DCREREADER_CONFIG_LINE_SPACE_PERCENT_TINY,
+                    DCREREADER_CONFIG_LINE_SPACE_PERCENT_XX_SMALL,
+                    DCREREADER_CONFIG_LINE_SPACE_PERCENT_X_SMALL,
                     DCREREADER_CONFIG_LINE_SPACE_PERCENT_SMALL,
+                    DCREREADER_CONFIG_LINE_SPACE_PERCENT_L_SMALL,
                     DCREREADER_CONFIG_LINE_SPACE_PERCENT_MEDIUM,
+                    DCREREADER_CONFIG_LINE_SPACE_PERCENT_L_MEDIUM,
+                    DCREREADER_CONFIG_LINE_SPACE_PERCENT_XL_MEDIUM,
+                    DCREREADER_CONFIG_LINE_SPACE_PERCENT_XXL_MEDIUM,
                     DCREREADER_CONFIG_LINE_SPACE_PERCENT_LARGE,
+                    DCREREADER_CONFIG_LINE_SPACE_PERCENT_X_LARGE,
+                    DCREREADER_CONFIG_LINE_SPACE_PERCENT_XX_LARGE,
                 },
                 name_text_hold_callback = optionsutil.showValues,
                 -- used by showValues
diff --git a/spec/unit/defaults_spec.lua b/spec/unit/defaults_spec.lua
index b1782179b..2c192d334 100644
--- a/spec/unit/defaults_spec.lua
+++ b/spec/unit/defaults_spec.lua
@@ -8,8 +8,8 @@ describe("defaults module", function()
 
     it("should load all defaults from defaults.lua", function()
         Defaults:init()
-        assert.is_same(82, #Defaults.defaults_name)
-        assert.is_same("DFULL_SCREEN", Defaults.defaults_name[28])
+        assert.is_same(92, #Defaults.defaults_name)
+        assert.is_same("DFULL_SCREEN", Defaults.defaults_name[38])
     end)
 
     it("should save changes to defaults.persistent.lua", function()
@@ -17,18 +17,18 @@ describe("defaults module", function()
         os.remove(persistent_filename)
 
         -- not in persistent but checked in defaults
-        Defaults.changed[11] = true
-        Defaults.changed[19] = true
-        Defaults.changed[28] = true
-        Defaults.changed[63] = true
-        Defaults.changed[77] = true
+        Defaults.changed[21] = true
+        Defaults.changed[29] = true
+        Defaults.changed[38] = true
+        Defaults.changed[73] = true
+        Defaults.changed[87] = true
         Defaults:saveSettings()
-        assert.is_same(82, #Defaults.defaults_name)
-        assert.is_same("DFULL_SCREEN", Defaults.defaults_name[28])
-        assert.is_same("SEARCH_LIBRARY_PATH", Defaults.defaults_name[77])
-        assert.is_same("DTAP_ZONE_BACKWARD", Defaults.defaults_name[63])
-        assert.is_same("DCREREADER_CONFIG_WORD_GAP_LARGE", Defaults.defaults_name[19])
-        assert.is_same("DCREREADER_CONFIG_MARGIN_SIZES_HUGE", Defaults.defaults_name[11])
+        assert.is_same(92, #Defaults.defaults_name)
+        assert.is_same("DFULL_SCREEN", Defaults.defaults_name[38])
+        assert.is_same("SEARCH_LIBRARY_PATH", Defaults.defaults_name[87])
+        assert.is_same("DTAP_ZONE_BACKWARD", Defaults.defaults_name[73])
+        assert.is_same("DCREREADER_CONFIG_WORD_GAP_LARGE", Defaults.defaults_name[29])
+        assert.is_same("DCREREADER_CONFIG_MARGIN_SIZES_HUGE", Defaults.defaults_name[21])
         local fd = io.open(persistent_filename, "r")
         assert.Equals(
 [[-- For configuration changes that persists between updates
@@ -53,10 +53,10 @@ DCREREADER_CONFIG_MARGIN_SIZES_HUGE = {
 
         -- in persistent
         Defaults:init()
-        Defaults.changed[28] = true
-        Defaults.defaults_value[28] = 2
-        Defaults.changed[63] = true
-        Defaults.defaults_value[63] = {
+        Defaults.changed[38] = true
+        Defaults.defaults_value[38] = 2
+        Defaults.changed[73] = true
+        Defaults.defaults_value[73] = {
             y = 10,
             x = 10.125,
             h = 20.25,
@@ -106,8 +106,8 @@ DHINTCOUNT = 2
 
         -- in persistent
         Defaults:init()
-        Defaults.changed[28] = true
-        Defaults.defaults_value[28] = 1
+        Defaults.changed[38] = true
+        Defaults.defaults_value[38] = 1
         Defaults:saveSettings()
         fd = io.open(persistent_filename)
         assert.Equals(