diff --git a/SimSun.ttf b/SimSun.ttf
deleted file mode 100644
index e0115abe..00000000
Binary files a/SimSun.ttf and /dev/null differ
diff --git a/shared_utils/convert_pdf.sh b/shared_utils/convert_pdf.sh
deleted file mode 100644
index b3a764b9..00000000
--- a/shared_utils/convert_pdf.sh
+++ /dev/null
@@ -1,28 +0,0 @@
-#!/bin/bash
-if [ "$#" -ne 1 ]; then
-    echo "Usage: $0 <path-to-pdf-file>"
-    exit 1
-fi
-
-FILE_PATH=$(realpath "$1")
-
-if [ ! -f "$FILE_PATH" ]; then
-    echo "File not found: $FILE_PATH"
-    exit 1
-fi
-
-conda activate mineru
-
-if ! command -v magic-pdf &> /dev/null; then
-    echo "magic-pdf could not be found in the current conda environment"
-    exit 1
-fi
-
-magic-pdf pdf-command --pdf "$FILE_PATH" --inside_model true
-
-if [ $? -eq 0 ]; then
-    echo "PDF conversion successful"
-else
-    echo "PDF conversion failed"
-    exit 1
-fi