diff --git a/cps/editbooks.py b/cps/editbooks.py
index c96ec942..1da3aa77 100644
--- a/cps/editbooks.py
+++ b/cps/editbooks.py
@@ -22,11 +22,10 @@
 #  along with this program. If not, see <http://www.gnu.org/licenses/>.
 
 # opds routing functions
-from cps import config, language_table, get_locale, app, ub, global_WorkerThread
+from cps import config, language_table, get_locale, app, ub, global_WorkerThread, db
 from flask import request, flash, redirect, url_for, abort, Markup, Response
 from flask import Blueprint
 import datetime
-from cps import db
 import os
 import json
 from flask_babel import gettext as _
@@ -34,7 +33,7 @@ from uuid import uuid4
 import helper
 from flask_login import current_user
 from web import login_required_if_no_ano, common_filters, order_authors, render_title_template, edit_required, \
-    upload_required, login_required
+    upload_required, login_required, EXTENSIONS_UPLOAD
 import gdriveutils
 from shutil import move, copyfile
 import uploader
@@ -44,8 +43,6 @@ editbook = Blueprint('editbook', __name__)
 
 EXTENSIONS_CONVERT = {'pdf', 'epub', 'mobi', 'azw3', 'docx', 'rtf', 'fb2', 'lit', 'lrf', 'txt', 'htmlz', 'rtf', 'odt'}
 
-EXTENSIONS_UPLOAD = {'txt', 'pdf', 'epub', 'mobi', 'azw', 'azw3', 'cbr', 'cbz', 'cbt', 'djvu', 'prc', 'doc', 'docx',
-                      'fb2', 'html', 'rtf', 'odt', 'mp3',  'm4a', 'm4b'}
 
 
 
diff --git a/cps/static/js/kthoom.js b/cps/static/js/kthoom.js
index 49ceae42..6ab25ad7 100644
--- a/cps/static/js/kthoom.js
+++ b/cps/static/js/kthoom.js
@@ -99,7 +99,8 @@ kthoom.setSettings = function() {
 };
 
 var createURLFromArray = function(array, mimeType) {
-    var offset = array.byteOffset, len = array.byteLength;
+    var offset = array.byteOffset;
+    var len = array.byteLength;
     var url;
     var blob;
 
diff --git a/cps/static/js/unzip.js b/cps/static/js/unzip.js
index 2938c834..0a067516 100644
--- a/cps/static/js/unzip.js
+++ b/cps/static/js/unzip.js
@@ -68,23 +68,23 @@ var ZipLocalFile = function(bstream) {
         this.filename = bstream.readString(this.fileNameLength);
     }
 
-    console.log("Zip Local File Header:");
-    console.log(" version=" + this.version);
-    console.log(" general purpose=" + this.generalPurpose);
-    console.log(" compression method=" + this.compressionMethod);
-    console.log(" last mod file time=" + this.lastModFileTime);
-    console.log(" last mod file date=" + this.lastModFileDate);
-    console.log(" crc32=" + this.crc32);
-    console.log(" compressed size=" + this.compressedSize);
-    console.log(" uncompressed size=" + this.uncompressedSize);
-    console.log(" file name length=" + this.fileNameLength);
-    console.log(" extra field length=" + this.extraFieldLength);
-    console.log(" filename = '" + this.filename + "'");
+    info("Zip Local File Header:");
+    info(" version=" + this.version);
+    info(" general purpose=" + this.generalPurpose);
+    info(" compression method=" + this.compressionMethod);
+    info(" last mod file time=" + this.lastModFileTime);
+    info(" last mod file date=" + this.lastModFileDate);
+    info(" crc32=" + this.crc32);
+    info(" compressed size=" + this.compressedSize);
+    info(" uncompressed size=" + this.uncompressedSize);
+    info(" file name length=" + this.fileNameLength);
+    info(" extra field length=" + this.extraFieldLength);
+    info(" filename = '" + this.filename + "'");
 
     this.extraField = null;
     if (this.extraFieldLength > 0) {
         this.extraField = bstream.readString(this.extraFieldLength);
-        console.log(" extra field=" + this.extraField);
+        info(" extra field=" + this.extraField);
     }
 
     // read in the compressed data
@@ -110,13 +110,14 @@ ZipLocalFile.prototype.unzip = function() {
 
     // Zip Version 1.0, no compression (store only)
     if (this.compressionMethod == 0 ) {
-        console.log("ZIP v" + this.version + ", store only: " + this.filename + " (" + this.compressedSize + " bytes)");
+        info("ZIP v" + this.version + ", store only: " + this.filename + " (" + this.compressedSize + " bytes)");
         currentBytesUnarchivedInFile = this.compressedSize;
         currentBytesUnarchived += this.compressedSize;
+        this.fileData = zeroCompression(this.fileData, this.uncompressedSize);
     }
     // version == 20, compression method == 8 (DEFLATE)
     else if (this.compressionMethod == 8) {
-        console.log("ZIP v2.0, DEFLATE: " + this.filename + " (" + this.compressedSize + " bytes)");
+        info("ZIP v2.0, DEFLATE: " + this.filename + " (" + this.compressedSize + " bytes)");
         this.fileData = inflate(this.fileData, this.uncompressedSize);
     }
     else {
@@ -164,7 +165,7 @@ var unzip = function(arrayBuffer) {
 
         // archive extra data record
         if (bstream.peekNumber(4) == zArchiveExtraDataSignature) {
-            console.log(" Found an Archive Extra Data Signature");
+            info(" Found an Archive Extra Data Signature");
 
             // skipping this record for now
             bstream.readNumber(4);
@@ -175,7 +176,7 @@ var unzip = function(arrayBuffer) {
         // central directory structure
         // TODO: handle the rest of the structures (Zip64 stuff)
         if (bstream.peekNumber(4) == zCentralFileHeaderSignature) {
-            console.log(" Found a Central File Header");
+            info(" Found a Central File Header");
 
             // read all file headers
             while (bstream.peekNumber(4) == zCentralFileHeaderSignature) {
@@ -205,7 +206,7 @@ var unzip = function(arrayBuffer) {
 
         // digital signature
         if (bstream.peekNumber(4) == zDigitalSignatureSignature) {
-            console.log(" Found a Digital Signature");
+            info(" Found a Digital Signature");
 
             bstream.readNumber(4);
             var sizeOfSignature = bstream.readNumber(2);
@@ -493,6 +494,16 @@ function inflateBlockData(bstream, hcLiteralTable, hcDistanceTable, buffer) {
     return blockSize;
 }
 
+function zeroCompression(compressedData, numDecompressedBytes) {
+    var bstream = new bitjs.io.BitStream(compressedData.buffer,
+        false /* rtl */,
+        compressedData.byteOffset,
+        compressedData.byteLength);
+    var buffer = new bitjs.io.ByteBuffer(numDecompressedBytes);
+    buffer.insertBytes(bstream.readBytes(numDecompressedBytes));
+    return buffer.data;
+}
+
 // {Uint8Array} compressedData A Uint8Array of the compressed file data.
 // compression method 8
 // deflate: http://tools.ietf.org/html/rfc1951
diff --git a/cps/templates/layout.html b/cps/templates/layout.html
index 48ffc0d0..93c8ab23 100644
--- a/cps/templates/layout.html
+++ b/cps/templates/layout.html
@@ -62,7 +62,8 @@
                   <li>
                     <form id="form-upload" class="navbar-form" action="{{ url_for('editbook.upload') }}" method="post" enctype="multipart/form-data">
                       <div class="form-group">
-                        <span class="btn btn-default btn-file">{{_('Upload')}}<input id="btn-upload" name="btn-upload" type="file" multiple></span>
+                        <span class="btn btn-default btn-file">{{_('Upload')}}<input id="btn-upload" name="btn-upload"
+                        type="file" accept="{% for format in accept %}.{{format}}{{ ',' if not loop.last }}{% endfor %}" multiple></span>
                       </div>
                     </form>
                   </li>
diff --git a/cps/web.py b/cps/web.py
index 072069eb..c5bd7600 100644
--- a/cps/web.py
+++ b/cps/web.py
@@ -47,7 +47,6 @@ from cps import lm, babel, ub, config, get_locale, language_table, app, db
 from pagination import Pagination
 from sqlalchemy.sql.expression import text
 
-
 feature_support = dict()
 try:
     from oauth_bb import oauth_check, register_user_with_oauth, logout_oauth_user, get_oauth_status
@@ -106,6 +105,10 @@ from flask import Blueprint
 
 EXTENSIONS_AUDIO = {'mp3', 'm4a', 'm4b'}
 
+EXTENSIONS_UPLOAD = {'txt', 'pdf', 'epub', 'mobi', 'azw', 'azw3', 'cbr', 'cbz', 'cbt', 'djvu', 'prc', 'doc', 'docx',
+                      'fb2', 'html', 'rtf', 'odt', 'mp3',  'm4a', 'm4b'}
+
+
 '''EXTENSIONS_READER = set(['txt', 'pdf', 'epub', 'zip', 'cbz', 'tar', 'cbt'] + 
                         (['rar','cbr'] if feature_support['rar'] else []))'''
 
@@ -133,10 +136,7 @@ web = Blueprint('web', __name__)
 
 @lm.user_loader
 def load_user(user_id):
-    try:
-        return ub.session.query(ub.User).filter(ub.User.id == int(user_id)).first()
-    except Exception as e:
-        print(e)
+    return ub.session.query(ub.User).filter(ub.User.id == int(user_id)).first()
 
 
 @lm.header_loader
@@ -325,7 +325,8 @@ def get_search_results(term):
 # Returns the template for rendering and includes the instance name
 def render_title_template(*args, **kwargs):
     sidebar=ub.get_sidebar_config(kwargs)
-    return render_template(instance=config.config_calibre_web_title, sidebar=sidebar, *args, **kwargs)
+    return render_template(instance=config.config_calibre_web_title, sidebar=sidebar, accept=EXTENSIONS_UPLOAD,
+                           *args, **kwargs)
 
 
 @web.before_app_request