NOT ABLE TO SLIDE AS PDF

documentclass[xcolor=dvipsnames,table]{beamer}
usepackage{latexsym}
usepackage[utf8]{inputenc}
%usepackage[brazil]{babel}
usepackage{amssymb}
usepackage{amsmath}
usepackage{stmaryrd}
usepackage{fancybox}
usepackage{datetime}
usepackage[T1]{fontenc}
usepackage{graphicx}
usepackage{graphics}
usepackage{url}
usepackage{algorithmic}
usepackage{algorithm}
usepackage{acronym}
usepackage{array}

newtheorem{definicao}{Definio}
newcommand{tab}{hspace*{2em}}

mode<presentation>
{
  definecolor{colortexto}{RGB}{0,0,0}
 
  setbeamertemplate{background canvas}[vertical shading][ bottom=white!10,top=white!10]
  setbeamercolor{normal text}{fg=colortexto} 

  usetheme{Warsaw}
}

title{PROBLEMS} 


  author[Mr. K  url{[email protected]}]{includegraphics[height=1.5cm,width=1.5cm]{kte.jpg}Mr  url{[email protected]}}
 institute{
  K Ho C}
date{textbf{today}

 }

Hello! Please help me out.

I used the above code for my slide. The problem is when I extracted the file.pdf as a slide, I couldn’t show slide by slide smoothly as powerpoint. Please I need it urgently.

Thank You so much!