diff --git a/admin/links.php b/admin/links.php
index c6a3295..db69bb0 100644
--- a/admin/links.php
+++ b/admin/links.php
@@ -79,9 +79,49 @@ if ($_SERVER['REQUEST_METHOD'] === 'POST') {
                 exit;
             }
 
+            require_once __DIR__ . '/../includes/ImageProcessor.php';
+
+            $current_link = $pdo->prepare("SELECT thumbnail_url FROM links WHERE id = ?");
+            $current_link->execute([$link_id]);
+            $current_thumbnail_url = $current_link->fetchColumn();
+
+            $new_thumbnail_url = $current_thumbnail_url;
+            $remove_image = isset($_POST['remove_image']) && $_POST['remove_image'] === 'true';
+
+            // Handle image removal
+            if ($remove_image) {
+                if ($current_thumbnail_url && file_exists(__DIR__ . '/../' . $current_thumbnail_url)) {
+                    unlink(__DIR__ . '/../' . $current_thumbnail_url);
+                }
+                $new_thumbnail_url = null;
+            }
+
+            // Handle new image upload
+            if (isset($_FILES['thumbnail']) && $_FILES['thumbnail']['error'] === UPLOAD_ERR_OK) {
+                $upload_dir = __DIR__ . '/../assets/images/uploads/';
+                if (!is_dir($upload_dir)) {
+                    mkdir($upload_dir, 0777, true);
+                }
+
+                $processor = new ImageProcessor($upload_dir);
+                $uploaded_path = $processor->uploadAndResize($_FILES['thumbnail']);
+
+                if ($uploaded_path) {
+                    // Delete old thumbnail if a new one is uploaded
+                    if ($current_thumbnail_url && file_exists(__DIR__ . '/../' . $current_thumbnail_url)) {
+                        unlink(__DIR__ . '/../' . $current_thumbnail_url);
+                    }
+                    $new_thumbnail_url = 'assets/images/uploads/' . basename($uploaded_path);
+                } else {
+                    $response['message'] = 'Failed to upload new thumbnail.';
+                    echo json_encode($response);
+                    exit;
+                }
+            }
+
             try {
-                $stmt = $pdo->prepare("UPDATE links SET title = ?, url = ?, description = ?, subcategory_id = ?, status = ? WHERE id = ?");
-                $stmt->execute([$title, $url, $description, $subcategory_id, $status, $link_id]);
+                $stmt = $pdo->prepare("UPDATE links SET title = ?, url = ?, description = ?, subcategory_id = ?, status = ?, thumbnail_url = ? WHERE id = ?");
+                $stmt->execute([$title, $url, $description, $subcategory_id, $status, $new_thumbnail_url, $link_id]);
                 if ($stmt->rowCount()) {
                     $response = ['success' => true, 'message' => 'Link updated successfully.'];
                 } else {
@@ -164,7 +204,7 @@ $subcategories = $pdo->query("SELECT sc.id, sc.name AS subcategory_name, c.name
                                 <tr><td colspan="7">No links submitted yet.</td></tr>
                             <?php else: ?>
                                 <?php foreach ($links as $link): ?>
-                                <tr data-id="<?php echo $link['id']; ?>">
+                                <tr data-id="<?php echo $link['id']; ?>" data-thumbnail-url="<?php echo htmlspecialchars($link['thumbnail_url']); ?>">
                                     <td class="link-title"><?php echo htmlspecialchars($link['title']); ?></td>
                                     <td class="link-url"><a href="<?php echo htmlspecialchars($link['url']); ?>" target="_blank"><?php echo htmlspecialchars(substr($link['url'], 0, 50)); ?>...</a></td>
                                     <td><?php echo htmlspecialchars($link['category_name']); ?> > <span class="link-subcategory-name" data-id="<?php echo $link['subcategory_id']; ?>"><?php echo htmlspecialchars($link['subcategory_name']); ?></span></td>
@@ -229,6 +269,19 @@ $subcategories = $pdo->query("SELECT sc.id, sc.name AS subcategory_name, c.name
                             <option value="paused">Paused</option>
                         </select>
                     </div>
+                    <div class="mb-3">
+                        <label for="editLinkThumbnail" class="form-label">Current Thumbnail</label>
+                        <div id="currentThumbnailPreview" class="mb-2">
+                            <!-- Image will be loaded here by JS -->
+                        </div>
+                        <input type="file" class="form-control" id="editLinkThumbnail" name="thumbnail" accept="image/*">
+                        <div class="form-check mt-2">
+                            <input class="form-check-input" type="checkbox" value="true" id="removeCurrentThumbnail" name="remove_image">
+                            <label class="form-check-label" for="removeCurrentThumbnail">
+                                Remove current thumbnail
+                            </label>
+                        </div>
+                    </div>
                     <button type="submit" class="btn btn-primary">Save changes</button>
                 </form>
             </div>
@@ -249,7 +302,11 @@ document.addEventListener('DOMContentLoaded', function() {
         button.addEventListener('click', function() {
             const linkId = this.dataset.id;
             if (confirm('Are you sure you want to delete this link?')) {
-                sendAction(linkId, 'delete', {});
+                const formData = new FormData();
+                formData.append('action', 'delete');
+                formData.append('link_id', linkId);
+                formData.append('csrf_token', csrfToken);
+                sendAction(formData);
             }
         });
     });
@@ -261,9 +318,14 @@ document.addEventListener('DOMContentLoaded', function() {
             // Determine new status based on current for toggling between paused and approved
             // If current status is 'paused', next is 'approved'. Otherwise, 'paused'.
             const newStatus = (currentStatus === 'paused') ? 'approved' : 'paused';
-            if (confirm(`Are you sure you want to ${newStatus === 'paused' ? 'pause' : 'unpause'} this link?`)) {
-                sendAction(linkId, 'toggle_status', { current_status: currentStatus });
-            }
+                        if (confirm(`Are you sure you want to ${newStatus === 'paused' ? 'pause' : 'unpause' } this link?`)) {
+                            const formData = new FormData();
+                            formData.append('action', 'toggle_status');
+                            formData.append('link_id', linkId);
+                            formData.append('current_status', currentStatus);
+                            formData.append('csrf_token', csrfToken);
+                            sendAction(formData);
+                        }
         });
     });
 
@@ -272,6 +334,9 @@ document.addEventListener('DOMContentLoaded', function() {
             const linkId = this.dataset.id;
             const row = this.closest('tr');
             
+            const linkId = this.dataset.id;
+            const row = this.closest('tr');
+            
             document.getElementById('editLinkId').value = linkId;
             document.getElementById('editLinkTitle').value = row.querySelector('.link-title').textContent;
             document.getElementById('editLinkUrl').value = row.querySelector('.link-url a').href;
@@ -287,32 +352,49 @@ document.addEventListener('DOMContentLoaded', function() {
                     break;
                 }
             }
+
+            // Reset file input and checkbox
+            document.getElementById('editLinkThumbnail').value = '';
+            document.getElementById('removeCurrentThumbnail').checked = false;
+
+            // Display current thumbnail if it exists
+            const currentThumbnailPreview = document.getElementById('currentThumbnailPreview');
+            currentThumbnailPreview.innerHTML = ''; // Clear previous preview
+            const thumbnailUrl = row.dataset.thumbnailUrl; // Assuming data-thumbnail-url attribute on tr
+            if (thumbnailUrl && thumbnailUrl !== 'null') {
+                const img = document.createElement('img');
+                img.src = '../' + thumbnailUrl;
+                img.alt = 'Current Thumbnail';
+                img.style.maxWidth = '100px';
+                img.style.maxHeight = '100px';
+                img.style.objectFit = 'cover';
+                currentThumbnailPreview.appendChild(img);
+            } else {
+                currentThumbnailPreview.innerHTML = '<small>No thumbnail set.</small>';
+            }
         });
     });
 
     document.getElementById('editLinkForm').addEventListener('submit', function(e) {
         e.preventDefault();
         const formData = new FormData(this);
-        const linkId = document.getElementById('editLinkId').value;
-        const data = {};
-        formData.forEach((value, key) => data[key] = value);
-        sendAction(linkId, 'edit', data);
+        
+        // Append the remove_image flag if checked
+        if (document.getElementById('removeCurrentThumbnail').checked) {
+            formData.append('remove_image', 'true');
+        }
+
+        // The action and link_id are already in the form as hidden inputs
+        // No need to manually add csrf_token if it's already a hidden input in the form
+
+        // sendAction now uses FormData directly
+        sendAction(formData);
     });
 
-    function sendAction(linkId, action, additionalData) {
-        const data = {
-            csrf_token: csrfToken,
-            action: action,
-            link_id: linkId,
-            ...additionalData
-        };
-
+    function sendAction(formData) {
         fetch('links.php', {
             method: 'POST',
-            headers: {
-                'Content-Type': 'application/x-www-form-urlencoded',
-            },
-            body: new URLSearchParams(data)
+            body: formData
         })
         .then(response => response.json())
         .then(data => {