Update app.py

app.py

@@ -133,13 +133,13 @@ def clearKBUploadDirectory(uploads_dir):
             print('Failed to delete %s. Reason: %s' % (file_path, e))
 
 def PDFChunkerWithSeparator(filepath, separator):
-    # creating a pdf reader object
-    reader = PyPDF2.PdfReader(filepath)
 
-    # print the number of pages in pdf file
-    print(len(reader.pages))
     content = ""
     if filepath.endswith(".pdf"):
+        # creating a pdf reader object
+        reader = PyPDF2.PdfReader(filepath)
+        # print the number of pages in pdf file
+        print(len(reader.pages))
         for page in reader.pages:
             content += page.extract_text()
     elif filepath.endswith(".txt"):