Add localization for image quality

public/locales/de/tools.json

@@ -212,7 +212,9 @@
   },
   "pdfToWebp": {
     "name": "PDF zu WebP",
-    "subtitle": "Jede PDF-Seite in ein WebP-Bild konvertieren."
+    "subtitle": "Jede PDF-Seite in ein WebP-Bild konvertieren.",
+    "imageQuality": "Bildqualität",
+    "imageQualityExplanation": "Höhere Qualität = größere Dateigröße"
   },
   "pdfToBmp": {
     "name": "PDF zu BMP",

public/locales/en/tools.json

@@ -212,7 +212,9 @@
   },
   "pdfToWebp": {
     "name": "PDF to WebP",
-    "subtitle": "Convert each PDF page into a WebP image."
+    "subtitle": "Convert each PDF page into a WebP image.",
+    "imageQuality": "Image Quality",
+    "imageQualityExplanation": "Higher quality = larger file size"
   },
   "pdfToBmp": {
     "name": "PDF to BMP",

src/pages/pdf-to-webp.html

@@ -163,6 +163,7 @@
             <label
               for="webp-quality"
               class="block mb-2 text-sm font-medium text-gray-300"
+              data-i18n="tools:pdfToWebp.imageQuality"
               >Image Quality</label
             >
             <div class="flex items-center gap-4">
@@ -181,7 +182,10 @@
                 >85%</span
               >
             </div>
-            <p class="mt-1 text-xs text-gray-400">
+            <p
+              class="mt-1 text-xs text-gray-400"
+              data-i18n="tools:pdfToWebp.imageQualityExplanation"
+            >
               Higher quality = larger file size
             </p>
           </div>