diff --git a/assets/css/photos.css b/assets/css/photos.css
index 734b0ad..e87ac87 100644
--- a/assets/css/photos.css
+++ b/assets/css/photos.css
@@ -29,7 +29,9 @@
 
 .photos img {
     display: inline-flex;
-    width: 25%;
+    /* 4/3 format */
+    width: 140px;
+    height: 105px;
     opacity: 1;
     cursor: pointer;
     transition: 0.3s;
diff --git a/assets/scripts/photosScript.js b/assets/scripts/photosScript.js
index 20f631c..0fc5f6d 100644
--- a/assets/scripts/photosScript.js
+++ b/assets/scripts/photosScript.js
@@ -18,6 +18,10 @@ function displayBig(elem) {
     photoOverlay.fadeIn(500);
 }
 
+function getSourceFromThumbnail(source) {
+    return source.replace("photos_thumb/", "photos/");
+}
+
 /*
  * Hide showcase image
  */
@@ -107,8 +111,8 @@ function displayNext(direction) {
     var currentSrc = showcase.attr('src');
     var photos = document.getElementsByClassName("photo");
     var current = 0;
-    for (i = 0; i < photos.length; i++) {
-        if ($(photos[i]).attr('src') == currentSrc) {
+    for (var i = 0; i < photos.length; i++) {
+        if (getSourceFromThumbnail($(photos[i]).attr('src')) === currentSrc) {
             current = i;
         }
     }
@@ -129,8 +133,9 @@ function displayNext(direction) {
 /*
  * Change image source, link and download
  */
-function changeImage(src) {
-    showcase.attr("src", src);
-    showcaseLink.attr("href", src);
-    showcaseDownload.attr("href", src);
+function changeImage(thumb) {
+    var source = getSourceFromThumbnail(thumb);
+    showcase.attr("src", source);
+    showcaseLink.attr("href", source);
+    showcaseDownload.attr("href", source);
 }
diff --git a/photos.php b/photos.php
index 5fabb5f..9c6e5a3 100644
--- a/photos.php
+++ b/photos.php
@@ -63,7 +63,7 @@ function getDirectories($dir)
 // Get all photos in the specified path
 function getPhotos($dir)
 {
-    $dir = "photos".$dir;
+    $dir = "photos_thumb".$dir;
     $files = scandir($dir);
     $displayedItems = 0;
     foreach ($files as $key => $value) {
diff --git a/photos/2016/album1/chicken silouhette.bmp b/photos/2016/album1/chicken silouhette.bmp
deleted file mode 100755
index 2592cd9..0000000
Binary files a/photos/2016/album1/chicken silouhette.bmp and /dev/null differ
diff --git a/photos/2018/album1/chicken silouhette.bmp b/photos/2018/album1/chicken silouhette.bmp
deleted file mode 100755
index 2592cd9..0000000
Binary files a/photos/2018/album1/chicken silouhette.bmp and /dev/null differ
diff --git a/photos/2018/album1/chicken silouhette2.bmp b/photos/2018/album1/chicken silouhette2.bmp
deleted file mode 100755
index 2592cd9..0000000
Binary files a/photos/2018/album1/chicken silouhette2.bmp and /dev/null differ
diff --git a/photos/compress.py b/photos/compress.py
deleted file mode 100644
index a6b7214..0000000
--- a/photos/compress.py
+++ /dev/null
@@ -1,78 +0,0 @@
-#!/usr/bin/python
-
-import os
-import sys
-from zipfile import ZipFile, ZIP_DEFLATED
-
-
-def zip_dir(path):
-    """
-    Compress files in the specified directory and sub-directories
-    Create one zip per folder
-
-    :param path: directory to get files in
-    :return:
-    """
-    for root, dirs, files in os.walk(path):
-        if is_directory_valid(root, len(files)):
-            print("Compressing '" + root + "'", end="")
-            with ZipFile(os.path.join(root, get_current_dir(root)) + ".zip", "w", ZIP_DEFLATED) as zip_file:
-                for fn in files:
-                    if not fn.endswith("zip"):
-                        print(".", end="")
-                        absolute_file_name = os.path.join(root, fn)
-                        zippped_file_name = absolute_file_name[len(root)+len(os.sep):]  # XXX: relative path
-                        zip_file.write(absolute_file_name, zippped_file_name)
-            print("done")
-    print("COMPRESSION FINISHED")
-
-
-def is_directory_valid(path, files_number):
-    """
-    Check if the given path is not hidden or emptty
-    :param files_number: number of files in the folder
-    :param path: Path to check
-    :return: True if path contains a hidden folder or is empty, False otherwise
-    """
-    directories = path.split(os.sep)
-    valid = files_number > 0
-    for dn in directories:
-        if dn.startswith(".") or not valid:
-            valid = False
-            break
-    return valid
-
-
-def get_current_dir(path):
-    """
-    Get the name of the current directory
-    :param path: Path to search the name in
-    :return: directory name
-    """
-    return os.path.basename(os.path.normpath(path))
-
-
-def get_confirmation(path):
-    """
-    Tell the user which folders will be compressed, and asks for confirmation
-    :param path: Root path for search
-    :return: True if user confirmed, False otherwise
-    """
-    print("The following folders will be compressed (hidden and empty folders are ignored):")
-    for root, dirs, files in os.walk(path):
-        if is_directory_valid(root, len(files)):
-            print(root)
-    confirmation = input("Are you sure you want to proceed? [Y/n]")
-    return confirmation == "Y" or confirmation == "y"
-
-
-if __name__ == '__main__':
-    # Get path from arguments or use the script's path
-    if len(sys.argv) > 1:
-        directory = sys.argv[1]
-    else:
-        directory = os.path.dirname(os.path.realpath(__file__))
-    if get_confirmation(directory):
-        zip_dir(directory)
-    else:
-        print("Compression aborted")
diff --git a/photos/compress_photos.py b/photos/compress_photos.py
new file mode 100644
index 0000000..ed34638
--- /dev/null
+++ b/photos/compress_photos.py
@@ -0,0 +1,145 @@
+#!/usr/bin/python
+
+import os
+import sys
+from zipfile import ZipFile, ZIP_DEFLATED
+from PIL import Image
+
+
+def get_images(path):
+    """
+    get images in the folder specified and all its sub folders (hidden and empty folders are ignored)
+
+    :param path: directory to get images in
+    :return: images list
+    """
+    file_list = []
+    for root, dirs, files in os.walk(path):
+        if is_directory_valid(root, len(files)):
+                for fn in files:
+                    if fn.endswith("png") or fn.endswith("jpg") or fn.endswith("bmp"):
+                        file_list.append(os.path.join(root, fn))
+    return file_list
+
+
+def compress_images(images):
+    """
+    Compress images to a 140x105 format, cropping in the middle if needed
+    :param images: list o images paths to compress
+    :return:
+    """
+    size = 140, 105  # 4/3 format
+    print("Creating thumbnails", end="")
+    for current_img in images:
+        print(".", end="")
+        # If height is higher we resize vertically, if not we resize horizontally
+        img = Image.open(current_img)
+        # Get current and desired ratio for the images
+        img_ratio = img.size[0] / float(img.size[1])
+        ratio = size[0] / float(size[1])
+        # The image is scaled/cropped vertically or horizontally depending on the ratio
+        if ratio > img_ratio:
+            img = img.resize((size[0], round(size[0] * img.size[1] / img.size[0])), Image.BILINEAR)
+            # Crop in the middle
+            box = (0, round((img.size[1] - size[1]) / 2), img.size[0], round((img.size[1] + size[1]) / 2))
+            img = img.crop(box)
+        elif ratio < img_ratio:
+            img = img.resize((round(size[1] * img.size[0] / img.size[1]), size[1]), Image.BILINEAR)
+            # Crop in the middle
+            box = (round((img.size[0] - size[0]) / 2), 0, round((img.size[0] + size[0]) / 2), img.size[1])
+            img = img.crop(box)
+        else:
+            img = img.resize((size[0], size[1]), Image.BILINEAR)
+            # If the scale is the same, we do not need to crop
+        filename = get_new_path(current_img)
+        if not os.path.exists(os.path.dirname(filename)):
+            try:
+                os.makedirs(os.path.dirname(filename))
+            except OSError:
+                sys.exit("Fatal : Directory '" + os.path.dirname(filename) + "' does not exist and cannot be created")
+
+        img.save(filename, "JPEG")
+    print("Done. Thumbnails saved in 'photos_thumb' directory")
+
+
+def get_new_path(img):
+    """
+    Replace the original path to the thumbnail one (replace 'photos' by 'photos_thumb')
+    :param img: original path
+    :return: modified path
+    """
+    return img.replace("/photos/", "/photos_thumb/", 1)
+
+
+def zip_dir(path):
+    """
+    Compress files in the specified directory and sub-directories
+    Create one zip per folder
+
+    :param path: directory to get files in
+    :return:
+    """
+    for root, dirs, files in os.walk(path):
+        if is_directory_valid(root, len(files)):
+            print("Compressing '" + root + "'", end="")
+            with ZipFile(os.path.join(root, get_current_dir(root)) + ".zip", "w", ZIP_DEFLATED) as zip_file:
+                for fn in files:
+                    if not fn.endswith("zip"):
+                        print(".", end="")
+                        absolute_file_name = os.path.join(root, fn)
+                        zippped_file_name = absolute_file_name[len(root)+len(os.sep):]  # XXX: relative path
+                        zip_file.write(absolute_file_name, zippped_file_name)
+            print("done")
+    print("COMPRESSION FINISHED")
+
+
+def is_directory_valid(path, files_number):
+    """
+    Check if the given path is not hidden or empty
+    :param files_number: number of files in the folder
+    :param path: Path to check
+    :return: True if path contains a hidden folder or is empty, False otherwise
+    """
+    directories = path.split(os.sep)
+    valid = files_number > 0
+    for dn in directories:
+        if dn.startswith(".") or not valid:
+            valid = False
+            break
+    return valid
+
+
+def get_current_dir(path):
+    """
+    Get the name of the current directory
+    :param path: Path to search the name in
+    :return: directory name
+    """
+    return os.path.basename(os.path.normpath(path))
+
+
+def get_confirmation(path):
+    """
+    Tell the user which folders will be compressed, and asks for confirmation
+    :param path: Root path for search
+    :return: True if user confirmed, False otherwise
+    """
+    print("The following folders will be compressed (hidden and empty folders are ignored):")
+    for root, dirs, files in os.walk(path):
+        if is_directory_valid(root, len(files)):
+            print(root)
+    confirmation = input("Are you sure you want to proceed? [Y/n]")
+    return confirmation == "Y" or confirmation == "y"
+
+
+if __name__ == '__main__':
+    # Get path from arguments or use the script's path
+    if len(sys.argv) > 1:
+        directory = sys.argv[1]
+    else:
+        directory = os.path.dirname(os.path.realpath(__file__))
+    if get_confirmation(directory):
+        zip_dir(directory)
+        compress_images(get_images(directory))
+    else:
+        print("Compression aborted")