diff --git a/conf.py b/conf.py
index 08d828695..96970c883 100644
--- a/conf.py
+++ b/conf.py
@@ -51,6 +51,10 @@ exclude_patterns = [
 # See https://docutils.sourceforge.io/docs/ref/rst/roles.html#standard-roles for other roles.
 default_role = 'literal'
 
+
+# Whether scaled down images should be be wrapped in a `<a/>` tag linking to the image file or not.
+html_scaled_image_link = False
+
 # If true, '()' will be appended to :func: etc. cross-reference text
 add_function_parentheses = True
 
diff --git a/extensions/odoo_theme/static/js/layout.js b/extensions/odoo_theme/static/js/layout.js
index 8f995a515..d82cd0097 100644
--- a/extensions/odoo_theme/static/js/layout.js
+++ b/extensions/odoo_theme/static/js/layout.js
@@ -3,9 +3,29 @@
     document.addEventListener('DOMContentLoaded', function () {
         const content = document.getElementById('o_content');
 
-        // Enforce the presence of the `img-fluid` class on all images in the body.
+        let imageModalId = 0;
         content.querySelectorAll('img').forEach(image => {
+            // Enforce the presence of the `img-fluid` class on all images.
             image.classList.add('img-fluid');
+
+            // Add a modal to each image.
+            const modalContainer = document.createElement('div');
+            modalContainer.classList.add('o_image_modal');
+            modalContainer.innerHTML = `<div class="modal fade" id="modal-${imageModalId}">
+                   <div class="modal-dialog modal-dialog-centered">
+                     <div class="modal-content">
+                       <div class="modal-body">
+                         <img src="${image.src}" alt="${image.alt}"/>
+                         <button type="button" class="btn-close btn-close-white" data-bs-dismiss="modal" aria-label="Close"></button>
+                       </div>
+                     </div>
+                   </div>
+                 </div>
+            `;
+            image.parentNode.append(modalContainer);
+            image.setAttribute('data-bs-toggle', 'modal');
+            image.setAttribute('data-bs-target', `#modal-${imageModalId}`);
+            imageModalId++;
         });
 
         // Make all external links open in a new tab by default.
diff --git a/extensions/odoo_theme/static/scss/bootstrap_overridden.scss b/extensions/odoo_theme/static/scss/bootstrap_overridden.scss
index b832fe332..7094ece0c 100644
--- a/extensions/odoo_theme/static/scss/bootstrap_overridden.scss
+++ b/extensions/odoo_theme/static/scss/bootstrap_overridden.scss
@@ -19,6 +19,11 @@ $h6-font-size:                              $font-size-secondary;
 $btn-font-size:                             $font-size-secondary;
 $btn-font-weight:                           $fw_semibold;
 $btn-focus-box-shadow:                      0 0 0 transparent;
+$btn-close-bg:                              url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 30 30" fill="#000000"><path d="M15,16c-.27,0-.54-.11-.73-.31l-4.21-4.44c-.38-.4-.36-1.03,.04-1.41s1.03-.36,1.41,.04l3.48,3.67,3.42-3.67c.38-.4,1.01-.42,1.41-.05,.4,.38,.42,1.01,.05,1.41l-4.15,4.44c-.19,.2-.45,.32-.73,.32h0Z"/><path d="M10.79,20.44c-.25,0-.49-.09-.69-.27-.4-.38-.42-1.01-.04-1.41l4.21-4.45c.19-.2,.45-.31,.73-.31h0c.28,0,.54,.12,.73,.32l4.15,4.45c.38,.4,.35,1.04-.05,1.41-.41,.38-1.04,.35-1.41-.05l-3.42-3.67-3.48,3.67c-.2,.21-.46,.31-.73,.31Z"/><path d="M15,28.37c-7.37,0-13.37-6-13.37-13.37S7.63,1.63,15,1.63s13.37,6,13.37,13.37-6,13.37-13.37,13.37Zm0-24.74C8.73,3.63,3.63,8.73,3.63,15s5.1,11.37,11.37,11.37,11.37-5.1,11.37-11.37S21.27,3.63,15,3.63Z"/></svg>');
+$btn-close-width:                           2rem;
 
 // Dropdowns
-$dropdown-min-width:                        4.5rem;
\ No newline at end of file
+$dropdown-min-width:                        4.5rem;
+
+// Modals
+$modal-backdrop-opacity:                    .7;
diff --git a/extensions/odoo_theme/static/style.scss b/extensions/odoo_theme/static/style.scss
index 21f51e4fd..5b89b5833 100644
--- a/extensions/odoo_theme/static/style.scss
+++ b/extensions/odoo_theme/static/style.scss
@@ -704,6 +704,7 @@ header {
                     border: 1px solid $gray-lighter;
                     background: $white;
                     padding: .5rem;
+                    cursor: pointer;
                 }
 
                 img:not([alt="green"]):not([alt="orange"]):not([alt="red"]), iframe {
@@ -1103,6 +1104,25 @@ header {
     }
 }
 
+//------------------------------------------------------------------------------
+// Image modals
+//------------------------------------------------------------------------------
+
+.o_image_modal {
+    .modal-dialog {
+        max-width: fit-content;
+    }
+    .modal-content {
+        background-color: transparent;
+        border: none;
+    }
+    .modal-body {
+        padding: 2.2rem;
+    }
+    .btn-close {
+        @include o-position-absolute($top: 0);
+    }
+}
 //------------------------------------------------------------------------------
 // Footer
 //------------------------------------------------------------------------------