diff --git a/web/app.js b/web/app.js
index bde59a9d2..c3743396e 100644
--- a/web/app.js
+++ b/web/app.js
@@ -1632,18 +1632,21 @@ const PDFViewerApplication = {
       return;
     }
     const numLabels = labels.length;
-    if (numLabels !== this.pagesCount) {
-      console.error(
-        "The number of Page Labels does not match the number of pages in the document."
-      );
-      return;
+    // Ignore page labels that correspond to standard page numbering,
+    // or page labels that are all empty.
+    let standardLabels = 0,
+      emptyLabels = 0;
+    for (let i = 0; i < numLabels; i++) {
+      const label = labels[i];
+      if (label === (i + 1).toString()) {
+        standardLabels++;
+      } else if (label === "") {
+        emptyLabels++;
+      } else {
+        break;
+      }
     }
-    let i = 0;
-    // Ignore page labels that correspond to standard page numbering.
-    while (i < numLabels && labels[i] === (i + 1).toString()) {
-      i++;
-    }
-    if (i === numLabels) {
+    if (standardLabels >= numLabels || emptyLabels >= numLabels) {
       return;
     }
     const { pdfViewer, pdfThumbnailViewer, toolbar } = this;