diff --git a/preset/default_preset.json b/preset/default_preset.json
new file mode 100644
index 0000000..234fd32
--- /dev/null
+++ b/preset/default_preset.json
@@ -0,0 +1,606 @@
+[
+   {
+      "preset_name":"table_wrapper",
+      "rule":{
+         "tags":[
+            "^section$",
+            "^blockquote$"
+         ],
+         "condition":{
+            "parent_tags":null,
+            "child_tags":null,
+            "attrs":[
+               {
+                  "name":"class",
+                  "value":"feature[1234]"
+               }
+            ],
+            "text":null
+         }
+      }
+   },
+   {
+      "preset_name":"wrapper",
+      "rule":{
+         "tags":[
+            "^div$"
+         ],
+         "condition":{
+            "parent_tags":null,
+            "child_tags":null,
+            "attrs":[
+               {
+                  "name":"id",
+                  "value":"^Table of Contents\\d+"
+               }
+            ],
+            "text":null
+         },
+         "tag_to_wrap":{
+            "name":"TOC",
+            "attrs":[
+
+            ]
+         }
+      }
+   },
+   {
+      "preset_name":"decomposer",
+      "rule":{
+         "tags":[
+            "^div$"
+         ],
+         "condition":{
+            "parent_tags":null,
+            "child_tags":null,
+            "attrs":[
+               {
+                  "name":"title",
+                  "value":"footer"
+               }
+            ],
+            "text":null
+         }
+      }
+   },
+   {
+      "preset_name":"replacer",
+      "rule":{
+         "tags":[
+            "^h[6-9]$",
+            "^figure$",
+            "^section$",
+            "^blockquote$"
+         ],
+         "condition":{
+            "parent_tags":null,
+            "child_tags":null,
+            "attrs":[
+
+            ],
+            "text":null
+         },
+         "tag_to_replace":{
+            "name":"p",
+            "attrs":[
+
+            ]
+         }
+      }
+   },
+   {
+      "preset_name":"replacer",
+      "rule":{
+         "tags":[
+            "^aside$"
+         ],
+         "condition":{
+            "parent_tags":null,
+            "child_tags":null,
+            "attrs":[
+
+            ],
+            "text":null
+         },
+         "tag_to_replace":{
+            "name":"div",
+            "attrs":[
+
+            ]
+         }
+      }
+   },
+   {
+      "preset_name":"replacer",
+      "rule":{
+         "tags":[
+            "^div$"
+         ],
+         "condition":{
+            "parent_tags":null,
+            "child_tags":null,
+            "attrs":[
+               {
+                  "name":"style",
+                  "value":"column-count: 2"
+               }
+            ],
+            "text":null
+         },
+         "tag_to_replace":{
+            "name":"p",
+            "attrs":[
+
+            ]
+         }
+      }
+   },
+   {
+      "preset_name":"replacer",
+      "rule":{
+         "tags":[
+            "^header$",
+            "^footer$"
+         ],
+         "condition":{
+            "parent_tags":null,
+            "child_tags":null,
+            "attrs":[
+
+            ],
+            "text":null
+         },
+         "tag_to_replace":{
+            "name":"span",
+            "attrs":[
+
+            ]
+         }
+      }
+   },
+   {
+      "preset_name":"replacer",
+      "rule":{
+         "tags":[
+            "^kbd$",
+            "^var$"
+         ],
+         "condition":{
+            "parent_tags":":not(pre, span)",
+            "child_tags":null,
+            "attrs":[
+
+            ],
+            "text":null
+         },
+         "tag_to_replace":{
+            "name":"span",
+            "attrs":[
+
+            ]
+         }
+      }
+   },
+   {
+      "preset_name":"replacer",
+      "rule":{
+         "tags":[
+            "^em$"
+         ],
+         "condition":{
+            "parent_tags":null,
+            "child_tags":null,
+            "attrs":[
+
+            ],
+            "text":null
+         },
+         "tag_to_replace":{
+            "name":"i",
+            "attrs":[
+
+            ]
+         }
+      }
+   },
+   {
+      "preset_name":"replacer",
+      "rule":{
+         "tags":[
+            "^b$"
+         ],
+         "condition":{
+            "parent_tags":null,
+            "child_tags":null,
+            "attrs":[
+
+            ],
+            "text":null
+         },
+         "tag_to_replace":{
+            "name":"strong",
+            "attrs":[
+
+            ]
+         }
+      }
+   },
+   {
+      "preset_name":"replacer",
+      "rule":{
+         "tags":[
+            "^image$"
+         ],
+         "condition":{
+            "parent_tags":null,
+            "child_tags":null,
+            "attrs":[
+
+            ],
+            "text":null
+         },
+         "tag_to_replace":{
+            "name":"img",
+            "attrs":[
+
+            ]
+         }
+      }
+   },
+   {
+      "preset_name":"attr_remover",
+      "rule":{
+         "tags":[
+            "^sup$"
+         ],
+         "condition":{
+            "parent_tags":null,
+            "child_tags":null,
+            "attrs":[
+
+            ],
+            "text":null
+         }
+      }
+   },
+   {
+      "preset_name":"attr_replacer",
+      "rule":{
+         "tags":[
+            "^img$"
+         ],
+         "condition":{
+            "attrs":[
+               {
+                  "name":"xlink:href",
+                  "value":".*"
+               }
+            ]
+         },
+         "attr_to_replace":{
+            "name":"src",
+            "value":null
+         }
+      }
+   },
+   {
+      "preset_name":"attr_replacer",
+      "rule":{
+         "tags":[
+            "^p$"
+         ],
+         "condition":{
+            "attrs":[
+               {
+                  "name":"style",
+                  "value":"column-count: 2"
+               }
+            ]
+         },
+         "attr_to_replace":{
+            "name":"class",
+            "value":"columns2"
+         }
+      }
+   },
+   {
+      "preset_name":"unwrapper",
+      "rule":{
+         "tags":[
+            "^section$",
+            "^blockquote$",
+            "^article$",
+            "^figcaption$",
+            "^main$",
+            "^body$",
+            "^html$",
+            "^svg$"
+         ],
+         "condition":{
+            "parent_tags":null,
+            "child_tags":null,
+            "attrs":[
+
+            ],
+            "text":null
+         }
+      }
+   },
+   {
+      "preset_name":"unwrapper",
+      "rule":{
+         "tags":[
+            "^p$"
+         ],
+         "condition":{
+            "parent_tags":"li",
+            "child_tags":null,
+            "attrs":[
+
+            ],
+            "text":null
+         }
+      }
+   },
+   {
+      "preset_name":"unwrapper",
+      "rule":{
+         "tags":[
+            "^span$"
+         ],
+         "condition":{
+            "parent_tags":null,
+            "child_tags":null,
+            "attrs":[
+               {
+                  "name":"style",
+                  "value":"(^background: #[\\da-fA-F]{6}$)|(^letter-spacing: -?[\\d.]+pt$)"
+               }
+            ],
+            "text":null
+         }
+      }
+   },
+   {
+      "preset_name":"unwrapper",
+      "rule":{
+         "tags":[
+            "^span$"
+         ],
+         "condition":{
+            "parent_tags":null,
+            "child_tags":null,
+            "attrs":[
+               {
+                  "name":"lang",
+                  "value":"^ru-RU$"
+               }
+            ],
+            "text":null
+         }
+      }
+   },
+   {
+      "preset_name":"unwrapper",
+      "rule":{
+         "tags":[
+            "^span$"
+         ],
+         "condition":{
+            "parent_tags":null,
+            "child_tags":null,
+            "attrs":[
+               {
+                  "name":"face",
+                  "value":"^Times New Roman[\\w, ]+$"
+               }
+            ],
+            "text":null
+         }
+      }
+   },
+   {
+      "preset_name":"unwrapper",
+      "rule":{
+         "tags":[
+            "^p$"
+         ],
+         "condition":{
+            "parent_tags":":is(li)",
+            "child_tags":null,
+            "attrs":[
+
+            ],
+            "text":null
+         }
+      }
+   },
+   {
+      "preset_name":"unwrapper",
+      "rule":{
+         "tags":[
+            "^a$"
+         ],
+         "condition":{
+            "parent_tags":null,
+            "child_tags":null,
+            "attrs":[
+               {
+                  "name":"name",
+                  "value":"_GoBack"
+               }
+            ],
+            "text":null
+         }
+      }
+   },
+   {
+      "preset_name":"unwrapper",
+      "rule":{
+         "tags":[
+            "^u$"
+         ],
+         "condition":{
+            "parent_tags":":is(a)",
+            "child_tags":null,
+            "attrs":[
+
+            ],
+            "text":null
+         }
+      }
+   },
+   {
+      "preset_name":"unwrapper",
+      "rule":{
+         "tags":[
+            "^u$"
+         ],
+         "condition":{
+            "parent_tags":null,
+            "child_tags":":is(a)",
+            "attrs":[
+
+            ],
+            "text":null
+         }
+      }
+   },
+   {
+      "preset_name":"unwrapper",
+      "rule":{
+         "tags":[
+            "^b$"
+         ],
+         "condition":{
+            "parent_tags":":is(h1, h2, h3, h4, h5, h6, h7, h8, h9)",
+            "child_tags":null,
+            "attrs":[
+
+            ],
+            "text":null
+         }
+      }
+   },
+   {
+      "preset_name":"unwrapper",
+      "rule":{
+         "tags":[
+            "^div$"
+         ],
+         "condition":{
+            "parent_tags":null,
+            "child_tags":null,
+            "attrs":[
+
+            ],
+            "text":null
+         }
+      }
+   },
+   {
+      "preset_name":"inserter",
+      "rule":{
+         "tags":[
+            "^pre$"
+         ],
+         "condition":{
+            "parent_tags":null,
+            "child_tags":":not(:has(code, kbd, var))",
+            "attrs":[
+
+            ],
+            "text":null
+         },
+         "tag_to_insert":{
+            "name":"code",
+            "attrs":[
+
+            ]
+         }
+      }
+   },
+   {
+      "preset_name":"inserter",
+      "rule":{
+         "tags":[
+            "^h[1-5]$"
+         ],
+         "condition":{
+            "parent_tags":null,
+            "child_tags":null,
+            "attrs":[
+
+            ],
+            "text":null
+         },
+         "tag_to_insert":{
+            "name":"strong",
+            "attrs":[
+
+            ]
+         }
+      }
+   },
+   {
+      "preset_name":"inserter",
+      "rule":{
+         "tags":[
+            "^p$"
+         ],
+         "condition":{
+            "parent_tags":null,
+            "child_tags":null,
+            "attrs":[
+
+            ],
+            "text":"\\$\\$[\\s\\S]*?\\$\\$"
+         },
+         "tag_to_insert":{
+            "name":"span",
+            "attrs":[
+               {
+                  "name":"class",
+                  "value":"math-tex"
+               }
+            ]
+         }
+      }
+   },
+   {
+      "preset_name":"text_replacer",
+      "rule":{
+         "tags":[
+            "^p$"
+         ],
+         "condition":{
+            "text":"(\\\\nonumber\\\\\\\\\\\\noalign{\\\\pagebreak}[\\\\s\\\\S]*?)\\\\"
+         },
+         "text_to_replace":"\\\\"
+      }
+   },
+   {
+      "preset_name":"text_replacer",
+      "rule":{
+         "tags":[
+            "^.*$"
+         ],
+         "condition":{
+            "text":" "
+         },
+         "text_to_replace":" "
+      }
+   },
+   {
+      "preset_name":"text_replacer",
+      "rule":{
+         "tags":[
+            "^.*$"
+         ],
+         "condition":{
+            "text":" "
+         },
+         "text_to_replace":" "
+      }
+   }
+]
diff --git a/preset/old_docx_presets.json b/preset/old_docx_presets.json
deleted file mode 100644
index 6d5613b..0000000
--- a/preset/old_docx_presets.json
+++ /dev/null
@@ -1,254 +0,0 @@
-[
-    {
-        "preset_name": "wrapper",
-        "rules": [
-            {
-                "tags": ["^div$"],
-                "condition": {
-                    "parent_tags": null,
-                    "child_tags": null,
-                    "attrs": [
-                        {
-                            "name": "id",
-                            "value": "^Table of Contents\\d+"
-                        }
-                    ],
-                    "text": null
-                },
-                "tag_to_wrap": {
-                    "name": "TOC",
-                    "attrs": []
-                }
-            }
-        ]
-    },
-    {
-        "preset_name": "decomposer",
-        "rules": [
-            {
-                "tags": ["^div$"],
-                "condition": {
-                    "parent_tags": null,
-                    "child_tags": null,
-                    "attrs": [
-                        {
-                            "name": "title",
-                            "value": "footer"
-                        }
-                    ],
-                    "text": null
-                }
-            },
-            {
-                "tags": ["^div$"],
-                "condition": {
-                    "parent_tags": null,
-                    "child_tags": null,
-                    "attrs": [
-                        {
-                            "name": "id",
-                            "value": "^Table of Contents\\d+"
-                        }
-                    ],
-                    "text": null
-                }
-            }
-        ]
-    },
-    {
-        "preset_name": "replacer",
-        "rules": [
-            {
-                "tags": ["^h[6-9]$"],
-                "condition": null,
-                "tag_to_replace": {
-                    "name": "p",
-                    "attrs": null
-                }
-            },
-            {
-                "tags": ["^div$"],
-                "condition": {
-                    "parent_tags": null,
-                    "child_tags": null,
-                    "attrs": [
-                        {
-                            "name": "style",
-                            "value": "column-count: 2"
-                        }
-                    ],
-                    "text": null
-                },
-                "tag_to_replace": {
-                    "name": "p",
-                    "attrs": null
-                }
-            }
-        ]
-    },
-    {
-        "preset_name": "attr_replacer",
-        "rules": [
-            {
-                "tags": ["^p$"],
-                "condition": {
-                    "attrs": [
-                        {
-                            "name": "style",
-                            "value": "column-count: 2"
-                        }
-                    ]
-                },
-                "attr_to_replace": {
-                    "name": "class",
-                    "value": "columns2"
-                }
-            }
-        ]
-    },
-    {
-        "preset_name": "unwrapper",
-        "rules": [
-            {
-                "tags": ["^span$"],
-                "condition": {
-                    "parent_tags": ":is(h1, h2, h3, h4, h5, h6, h7, h8, h9)",
-                    "child_tags": null,
-                    "attrs": null,
-                    "text": null
-                }
-            },
-            {
-                "tags": ["^span$"],
-                "condition": {
-                    "parent_tags": null,
-                    "child_tags": null,
-                    "attrs": [
-                        {
-                            "name": "style",
-                            "value": "(^background: #[\\da-fA-F]{6}$)|(^letter-spacing: -?[\\d.]+pt$)"
-                        }
-                    ],
-                    "text": null
-                }
-            },
-            {
-                "tags": ["^span$"],
-                "condition": {
-                    "parent_tags": null,
-                    "child_tags": null,
-                    "attrs": [
-                        {
-                            "name": "lang",
-                            "value": "^ru-RU$"
-                        }
-                    ],
-                    "text": null
-                }
-            },
-            {
-                "tags": ["^span$"],
-                "condition": {
-                    "parent_tags": null,
-                    "child_tags": null,
-                    "attrs": [
-                        {
-                            "name": "face",
-                            "value": "^Times New Roman[\\w, ]+$"
-                        }
-                    ],
-                    "text": null
-                }
-            },
-            {
-                "tags": ["^p$"],
-                "condition": {
-                    "parent_tags": ":is(li)",
-                    "child_tags": null,
-                    "attrs": null,
-                    "text": null
-                }
-            },
-            {
-                "tags": ["^a$"],
-                "condition": {
-                    "parent_tags": null,
-                    "child_tags": null,
-                    "attrs": [
-                        {
-                            "name": "name",
-                            "value": "_GoBack"
-                        }
-                    ],
-                    "text": null
-                }
-            },
-            {
-                "tags": ["^u$"],
-                "condition": {
-                    "parent_tags": ":is(a)",
-                    "child_tags": null,
-                    "attrs": null,
-                    "text": null
-                }
-            },
-            {
-                "tags": ["^u$"],
-                "condition": {
-                    "parent_tags": null,
-                    "child_tags": ":is(a)",
-                    "attrs": null,
-                    "text": null
-                }
-            },
-            {
-                "tags": ["^b$"],
-                "condition": {
-                    "parent_tags": ":is(h1, h2, h3, h4, h5, h6, h7, h8, h9)",
-                    "child_tags": null,
-                    "attrs": null,
-                    "text": null
-                }
-            },
-            {
-                "tags": ["^div$"],
-                "condition": null
-            }
-        ]
-    },
-    {
-        "preset_name": "inserter",
-        "rules": [
-            {
-                "tags": ["^p$"],
-                "condition": {
-                    "parent_tags": null,
-                    "child_tags": null,
-                    "attrs": null,
-                    "text": "\\$\\$[\\s\\S]*?\\$\\$"
-                },
-                "tag_to_insert": {
-                    "name": "span",
-                    "attrs": [
-                        {
-                            "name": "class",
-                            "value": "math-tex"
-                        }
-                    ]
-                }
-            }
-        ]
-    },
-    {
-        "preset_name": "text_replacer",
-        "rules": [
-            {
-                "tags": ["^p$"],
-                "condition": {
-                    "text": "(\\\\nonumber\\\\\\\\\\\\noalign{\\\\pagebreak}[\\s\\S]*?)\\\\"
-                },
-                "text_to_replace": "\\\\"
-            }
-        ]
-    }
-]
diff --git a/preset/old_epub_presets.json b/preset/old_epub_presets.json
deleted file mode 100644
index 81d5498..0000000
--- a/preset/old_epub_presets.json
+++ /dev/null
@@ -1,158 +0,0 @@
-[
-    {
-        "preset_name": "table_wrapper",
-        "rules": [
-            {
-                "tags": ["^section$", "^blockquote$"],
-                "condition": {
-                    "parent_tags": null,
-                    "child_tags": null,
-                    "attrs": [
-                    {
-                        "name": "class",
-                        "value": "feature[1234]"
-                    }
-                ]
-                }
-            }
-        ]
-    },
-    {
-        "preset_name": "replacer",
-        "rules": [
-            {
-                "tags": ["^h[6-9]$", "^figure$", "^section$", "^blockquote$"],
-                "condition": null,
-                "tag_to_replace": {
-                    "name": "p"
-                }
-            },
-            {
-                "tags": ["^aside$"],
-                "condition": null,
-                "tag_to_replace": {
-                    "name": "div"
-                }
-            },
-            {
-                "tags": ["^header$", "^footer$"],
-                "condition": null,
-                "tag_to_replace": {
-                    "name": "span"
-                }
-            },
-            {
-                "tags": ["^kbd$", "^var$"],
-                "condition": {
-                    "parent_tags": ":not(pre, span)",
-                    "child_tags": null,
-                    "attrs": null
-                },
-                "tag_to_replace": {
-                    "name": "span"
-                }
-            },
-            {
-                "tags": ["^em$"],
-                "condition": null,
-                "tag_to_replace": {
-                    "name": "i"
-                }
-            },
-            {
-                "tags": ["^b$"],
-                "condition": null,
-                "tag_to_replace": {
-                    "name": "strong"
-                }
-            },
-            {
-                "tags": ["^image$"],
-                "condition": null,
-                "tag_to_replace": {
-                    "name": "img"
-                }
-            }
-        ]
-    },
-    {
-        "preset_name": "attr_remover",
-        "rules": [
-            {
-                "tags": ["^sup$"],
-                "condition": null
-            }
-        ]
-    },
-    {
-        "preset_name": "attr_replacer",
-        "rules": [
-            {
-                "tags": ["^img$"],
-                "condition": {
-                    "attrs": [
-                        {
-                            "name": "xlink:href",
-                            "value": ".*"
-                        }
-                    ]
-                },
-                "attr_to_replace": {
-                    "name": "src",
-                    "value": null
-                }
-            }
-        ]
-    },
-    {
-        "preset_name": "unwrapper",
-        "rules": [
-            {
-                "tags": [
-                    "^section$",
-                    "^blockquote$",
-                    "^article$",
-                    "^figcaption$",
-                    "^main$",
-                    "^body$",
-                    "^html$",
-                    "^svg$"
-                ],
-                "condition": null
-            },
-            {
-                "tags": ["^p$"],
-                "condition": {
-                    "parent_tags": "li",
-                    "child_tags": null,
-                    "attrs": null
-                }
-            }
-        ]
-    },
-    {
-        "preset_name": "inserter",
-        "rules": [
-            {
-                "tags": ["^pre$"],
-                "condition": {
-                    "parent_tags": null,
-                    "child_tags": ":not(:has(code, kbd, var))",
-                    "attrs": null
-                },
-                "tag_to_insert": {
-                    "name": "code",
-                    "attrs": []
-                }
-            },
-            {
-                "tags": ["^h[1-5]$"],
-                "condition": null,
-                "tag_to_insert": {
-                    "name":"strong",
-                    "attrs": []
-                }
-            }
-        ]
-    }
-]