diff --git a/server/core/BookConverter/ConvertBase.js b/server/core/BookConverter/ConvertBase.js
index 460d91c3..ad2a7e9c 100644
--- a/server/core/BookConverter/ConvertBase.js
+++ b/server/core/BookConverter/ConvertBase.js
@@ -1,3 +1,4 @@
+const fs = require('fs-extra');
 const iconv = require('iconv-lite');
 const chardet = require('chardet');
 const textUtils = require('./textUtils');
@@ -5,12 +6,27 @@ const textUtils = require('./textUtils');
 class ConvertBase {
     constructor(config) {
         this.config = config;
+
+        this.calibrePath = `${config.dataDir}/calibre/ebook-convert`;
+        this.sofficePath = '/usr/bin/soffice';
+        this.pdfToHtmlPath = '/usr/bin/pdftohtml';
     }
 
-    run(data, opts) {// eslint-disable-line no-unused-vars
+    async run(data, opts) {// eslint-disable-line no-unused-vars
         //override
     }
 
+    async checkExternalConverterPresent() {
+        if (!await fs.pathExists(this.calibrePath))
+            throw new Error('Внешний конвертер calibre не найден');
+
+        if (!await fs.pathExists(this.sofficePath))
+            throw new Error('Внешний конвертер LibreOffice не найден');
+
+        if (!await fs.pathExists(this.pdfToHtmlPath))
+            throw new Error('Внешний конвертер pdftohtml не найден');
+    }
+
     decode(data) {
         let selected = textUtils.getEncoding(data);
 
diff --git a/server/core/BookConverter/ConvertDocX.js b/server/core/BookConverter/ConvertDocX.js
index 6449a1ed..17c693f3 100644
--- a/server/core/BookConverter/ConvertDocX.js
+++ b/server/core/BookConverter/ConvertDocX.js
@@ -2,16 +2,29 @@ const ConvertBase = require('./ConvertBase');
 
 class ConvertDocX extends ConvertBase {
     check(data, opts) {
-        const {fileType} = opts;
+        const {inputFiles} = opts;
 
-        return (fileType && fileType.ext == 'docx' && this.config.useExternalBookConverter);
+        if (this.config.useExternalBookConverter && 
+            inputFiles.sourceFileType && inputFiles.sourceFileType.ext == 'zip') {
+            //ищем файл '[Content_Types].xml'
+            for (const file of inputFiles.fileList) {
+                if (file == '[Content_Types].xml') {
+                    return true;
+                }
+            }
+        }
+
+        return false;
     }
 
-    run(data, opts) {
+    async run(data, opts) {
         if (!this.check(data, opts))
             return false;
+        await this.checkExternalConverterPresent();
 
-        return data;
+        
+
+        return false;
     }
 }
 
diff --git a/server/core/BookConverter/ConvertFb2.js b/server/core/BookConverter/ConvertFb2.js
index d9698382..ec492a0f 100644
--- a/server/core/BookConverter/ConvertFb2.js
+++ b/server/core/BookConverter/ConvertFb2.js
@@ -8,7 +8,7 @@ class ConvertFb2 extends ConvertBase {
         return (dataType && dataType.ext == 'xml' && data.toString().indexOf('<FictionBook') >= 0);
     }
 
-    run(data, opts) {
+    async run(data, opts) {
         if (!this.check(data, opts))
             return false;
 
diff --git a/server/core/BookConverter/ConvertHtml.js b/server/core/BookConverter/ConvertHtml.js
index ed5bade8..9596cff8 100644
--- a/server/core/BookConverter/ConvertHtml.js
+++ b/server/core/BookConverter/ConvertHtml.js
@@ -17,7 +17,7 @@ class ConvertHtml extends ConvertBase {
         return false;
     }
 
-    run(data, opts) {
+    async run(data, opts) {
         const checkResult = this.check(data, opts);
         if (!checkResult)
             return false;
diff --git a/server/core/BookConverter/ConvertSamlib.js b/server/core/BookConverter/ConvertSamlib.js
index c6e9c37e..474fe0a1 100644
--- a/server/core/BookConverter/ConvertSamlib.js
+++ b/server/core/BookConverter/ConvertSamlib.js
@@ -19,7 +19,7 @@ class ConvertSamlib extends ConvertBase {
         return false;
     }
 
-    run(data, opts) {
+    async run(data, opts) {
         const checkResult = this.check(data, opts);
         if (!checkResult)
             return false;
diff --git a/server/core/BookConverter/index.js b/server/core/BookConverter/index.js
index 6fdb547a..68d97ba6 100644
--- a/server/core/BookConverter/index.js
+++ b/server/core/BookConverter/index.js
@@ -3,7 +3,7 @@ const FileDetector = require('../FileDetector');
 
 //порядок важен
 const convertClassFactory = [
-    //require('./ConvertDocX'),
+    require('./ConvertDocX'),
     require('./ConvertFb2'),
     require('./ConvertSamlib'),
     require('./ConvertHtml'),
@@ -25,7 +25,7 @@ class BookConverter {
         const data = await fs.readFile(inputFiles.selectedFile);
         let result = false;
         for (const convert of this.convertFactory) {
-            result = convert.run(data, {inputFiles, url, callback, dataType: selectedFileType});
+            result = await convert.run(data, {inputFiles, url, callback, dataType: selectedFileType});
             if (result) {
                 await fs.writeFile(outputFile, result);
                 break;
diff --git a/server/core/FileDecompressor.js b/server/core/FileDecompressor.js
index ffe2ef0a..a6864f97 100644
--- a/server/core/FileDecompressor.js
+++ b/server/core/FileDecompressor.js
@@ -19,8 +19,9 @@ class FileDecompressor {
 
         let result = {
             sourceFile: filename,
+            sourceFileType: fileType,
             selectedFile: filename,
-            fileType: fileType,
+            fileListDir: outputDir,
             fileList: []
         };
 
@@ -58,10 +59,9 @@ class FileDecompressor {
         if (files.length) {
             //ищем файл с максимальным размером
             for (let file of files) {
-                const path = `${outputDir}/${file.path}`;
-                fileList.push(path);
+                fileList.push(file.path);
                 if (file.data.length > max) {
-                    sel = path;
+                    sel = `${outputDir}/${file.path}`;
                     max = file.data.length;
                 }
             }