modified: QUICKSTART.md

modified:   app.py
	deleted:    output/.gitkeep
	modified:   static/css/style.css
	modified:   static/js/pdf-tools.js
	modified:   templates/pdf_tools.html
	deleted:    uploads/.gitkeep

static/css/style.css

@@ -485,6 +485,75 @@ footer {
     object-fit: contain;
 }
 
+/* PDF Preview */
+.pdf-preview {
+    max-width: 120px;
+    max-height: 120px;
+    object-fit: cover;
+    border-radius: var(--border-radius);
+    border: 2px solid #e9ecef;
+    transition: all 0.3s ease;
+    cursor: pointer;
+    background-color: #f8f9fa;
+}
+
+.pdf-preview:hover {
+    border-color: var(--danger-color);
+    transform: scale(1.05);
+}
+
+.pdf-preview.size-small {
+    max-width: 80px;
+    max-height: 80px;
+}
+
+.pdf-preview.size-medium {
+    max-width: 120px;
+    max-height: 120px;
+}
+
+.pdf-preview.size-large {
+    max-width: 160px;
+    max-height: 160px;
+}
+
+/* PDF item enhanced */
+.pdf-item-enhanced {
+    padding: 1rem;
+    border-radius: var(--border-radius);
+    transition: all 0.3s ease;
+}
+
+.pdf-item-enhanced:hover {
+    background-color: rgba(220, 53, 69, 0.05);
+    transform: translateY(-2px);
+    box-shadow: var(--box-shadow-lg);
+}
+
+.pdf-info {
+    flex: 1;
+    min-width: 0;
+}
+
+.pdf-controls {
+    display: flex;
+    flex-direction: column;
+    gap: 0.5rem;
+    align-items: flex-end;
+}
+
+/* PDF no-preview fallback */
+.pdf-no-preview {
+    display: flex;
+    align-items: center;
+    justify-content: center;
+    background-color: #f8f9fa;
+    border: 2px dashed #dee2e6;
+    border-radius: var(--border-radius);
+    color: var(--danger-color);
+    font-size: 2rem;
+}
+
 /* File item enhanced */
 .file-item-enhanced {
     padding: 1rem;