diff --git a/package-lock.json b/package-lock.json
index b1db518b8..9012daec6 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -3065,9 +3065,9 @@
       "integrity": "sha512-PcW2a0tyTuPHz3tWyYqtK6r1fZ3gp+3Sop8Ph+ZYN81Ob5rwmbHEzaqs10N3BEsaGTkh/ooniXK+WwszGlc2+Q=="
     },
     "electron": {
-      "version": "6.0.0-beta.11",
-      "resolved": "https://registry.npmjs.org/electron/-/electron-6.0.0-beta.11.tgz",
-      "integrity": "sha512-B6zh9c5pJ0BKKNkOEbF6vKXnBCWgtvY8LaUYDNeR9ttnPP0CCm0oovIoqP9/nN5gL8rlCoCgKWsjmiHu0jg7mA==",
+      "version": "6.0.0-beta.13",
+      "resolved": "https://registry.npmjs.org/electron/-/electron-6.0.0-beta.13.tgz",
+      "integrity": "sha512-q1pX18l4N6PH0iCoHXPmgqDNEX2slvMYZcxWXHlUFQodtvXq7bnsFfr6uvifMT5oSdfsCZtXXPK3/iK6PdODNQ==",
       "dev": true,
       "requires": {
         "@types/node": "^10.12.18",
diff --git a/package.json b/package.json
index 8cfacf89d..a6aec1ff0 100644
--- a/package.json
+++ b/package.json
@@ -2,7 +2,7 @@
   "name": "trilium",
   "productName": "Trilium Notes",
   "description": "Trilium Notes",
-  "version": "0.33.6",
+  "version": "0.33.7",
   "license": "AGPL-3.0-only",
   "main": "electron.js",
   "bin": {
@@ -76,7 +76,7 @@
   },
   "devDependencies": {
     "devtron": "1.4.0",
-    "electron": "6.0.0-beta.11",
+    "electron": "6.0.0-beta.13",
     "electron-builder": "20.44.4",
     "electron-compile": "6.4.4",
     "electron-installer-debian": "2.0.0",
diff --git a/src/routes/api/sender.js b/src/routes/api/sender.js
index c1f59b5ee..49a2a5462 100644
--- a/src/routes/api/sender.js
+++ b/src/routes/api/sender.js
@@ -1,5 +1,6 @@
 "use strict";
 
+const imageType = require('image-type');
 const imageService = require('../../services/image');
 const dateNoteService = require('../../services/date_notes');
 const noteService = require('../../services/notes');
@@ -11,9 +12,11 @@ async function uploadImage(req) {
         return [400, "Unknown image type: " + file.mimetype];
     }
 
+    const originalName = "Sender image." + imageType(file.buffer).ext;
+
     const parentNote = await dateNoteService.getDateNote(req.headers['x-local-date']);
 
-    const {noteId} = await imageService.saveImage(file.buffer, "Sender image", parentNote.noteId, true);
+    const {noteId} = await imageService.saveImage(file.buffer, originalName, parentNote.noteId, true);
 
     return {
         noteId: noteId
diff --git a/src/services/build.js b/src/services/build.js
index 3984307ae..4b835331b 100644
--- a/src/services/build.js
+++ b/src/services/build.js
@@ -1 +1 @@
-module.exports = { buildDate:"2019-07-02T22:26:05+02:00", buildRevision: "196264b8c2fc626e3114d65423c7110cff99ae85" };
+module.exports = { buildDate:"2019-07-11T20:55:56+02:00", buildRevision: "a76dcb44ae1c1cef58b9a66041b183893745a944" };
diff --git a/src/services/export/tar.js b/src/services/export/tar.js
index f4ae65bc3..e2aa1dd28 100644
--- a/src/services/export/tar.js
+++ b/src/services/export/tar.js
@@ -32,11 +32,11 @@ async function exportToTar(exportContext, branch, format, res) {
             do {
                 index = existingFileNames[lcFileName]++;
 
-                newName = lcFileName + "_" + index;
+                newName = index + "_" + lcFileName;
             }
             while (newName in existingFileNames);
 
-            return fileName + "_" + index;
+            return index + "_" + fileName;
         }
         else {
             existingFileNames[lcFileName] = 1;
@@ -46,24 +46,32 @@ async function exportToTar(exportContext, branch, format, res) {
     }
 
     function getDataFileName(note, baseFileName, existingFileNames) {
-        let extension;
+        const existingExtension = path.extname(baseFileName).toLowerCase();
+        let newExtension;
 
+        // following two are handled specifically since we always want to have these extensions no matter the automatic detection
+        // and/or existing detected extensions in the note name
         if (note.type === 'text' && format === 'markdown') {
-            extension = 'md';
+            newExtension = 'md';
+        }
+        else if (note.type === 'text' && format === 'html') {
+            newExtension = 'html';
         }
         else if (note.mime === 'application/x-javascript' || note.mime === 'text/javascript') {
-            extension = 'js';
+            newExtension = 'js';
+        }
+        else if (existingExtension.length > 0) { // if the page already has an extension, then we'll just keep it
+            newExtension = null;
         }
         else {
-            extension = mimeTypes.extension(note.mime) || "dat";
+            newExtension = mimeTypes.extension(note.mime) || "dat";
         }
 
         let fileName = baseFileName;
-        const existingExtension = path.extname(fileName).toLowerCase();
 
         // if the note is already named with extension (e.g. "jquery.js"), then it's silly to append exact same extension again
-        if (existingExtension !== extension) {
-            fileName += "." + extension;
+        if (newExtension && existingExtension !== "." + newExtension.toLowerCase()) {
+            fileName += "." + newExtension;
         }
 
         return getUniqueFilename(existingFileNames, fileName);
diff --git a/src/services/image.js b/src/services/image.js
index 9712a3873..8523c0fde 100644
--- a/src/services/image.js
+++ b/src/services/image.js
@@ -26,8 +26,7 @@ async function saveImage(buffer, originalName, parentNoteId, shrinkImageSwitch)
 
     const parentNote = await repository.getNote(parentNoteId);
 
-    const fileNameWithoutExtension = originalName.replace(/\.[^/.]+$/, "");
-    const fileName = sanitizeFilename(fileNameWithoutExtension + "." + imageFormat.ext);
+    const fileName = sanitizeFilename(originalName);
 
     const {note} = await noteService.createNote(parentNoteId, fileName, finalImageBuffer, {
         target: 'into',
diff --git a/src/services/import/single.js b/src/services/import/single.js
index 3dd1adb37..582cf9361 100644
--- a/src/services/import/single.js
+++ b/src/services/import/single.js
@@ -75,8 +75,6 @@ function getMime(fileName) {
     const ext = path.extname(fileName).toLowerCase();
 
     if (ext in EXTENSION_TO_MIME) {
-        console.log(EXTENSION_TO_MIME[ext]);
-
         return EXTENSION_TO_MIME[ext];
     }
 
@@ -108,7 +106,7 @@ async function importSingleFile(importContext, file, parentNote) {
 }
 
 async function importImage(file, parentNote, importContext) {
-    const {note} = await imageService.saveImage(file.buffer, getFileNameWithoutExtension(file.originalname), parentNote.noteId, importContext.shrinkImages);
+    const {note} = await imageService.saveImage(file.buffer, file.originalname, parentNote.noteId, importContext.shrinkImages);
 
     importContext.increaseProgressCount();