diff --git a/docs/TODOLIST.md b/docs/TODOLIST.md
index b7270ab..8cadd66 100644
--- a/docs/TODOLIST.md
+++ b/docs/TODOLIST.md
@@ -3,7 +3,6 @@
 * Browser: implement js plugin like vimium
 * Browser: study more code from https://github.com/LavaPower/Browthon-Old/blob/c25d5721b40e95131a3c521566a18467f13ecbf0/files/Browthon_elements.py
 * ImageViewer: add zoom support
-* PdfViewer: use mupdf/page.searchFor implement search text in pdf.
 * PdfViewer: allow select text.
 * PdfViewer: use self.document.getToC() fetch and render bookmark.
 * Support HiDPI? I haven't HiDPI screen.