Remove 'responsive voice' buttons from pdf

Hi. Maybe this can help you.

This is my dkpdf css

#content dys{
	font-family: 'opendyslexicregular', normal;
}
blockquote{
	font-family: 'opendyslexicregular' , normal;
}

body{
	font-family: 'opendyslexicregular' , normal;
}

table, th, td, tr {
    border: 1px solid black;
}

h1 {
  font-weight: bold;
  font-size: 32px;
}

h2 {
  font-weight: bold;
  font-size: 24px;
}

button#bb2 {
    display:none;
}

This is the html-text from the post in the WP editor:
<h1>Opgaven</h1>
[responsivevoice voice=”Danish Female” buttontext=”Læs opgaven”]Du skal læse historien. Når du er færdig med at læse, så kan du se, hvor mange af spørgsmålene, du kan svare på.

[/responsivevoice]

This is the html-output displayed in Chrome:
<h1>Opgaven</h1>
Du skal læse historien. Når du er færdig med at læse, så kan du se, hvor mange af spørgsmålene, du kan svare på.</p>
<p><button id=’bb2′ type=’button’ value=’Play’ title=’ResponsiveVoice Tap to Start/Stop Speech’><span>🔊 Læs opgaven</span></button><script>bb2.onclick = function(){if(responsiveVoice.isPlaying()){responsiveVoice.cancel();}else{responsiveVoice.speak(‘Du skal læse historien. Når du er færdig med at læse, så kan du se, hvor mange af spørgsmålene, du kan svare på.’, ‘Danish Female’);}};</script>

This is the text and button on the front end:
https://drive.google.com/file/d/0B4y2JZoxGHjCVWVCV1NRQTVpcDQ/view?usp=sharing

This is the same text and button in the pdf
https://drive.google.com/file/d/0B4y2JZoxGHjCVlpNWUQyMGxudUk/view?usp=sharing

Hi dinamiko.

Thank you for looking in to this. The above codes both work, but sadly remove the shortcodes and everything in between the shortcodes (The text).

If I eg. use the code beneath, then it would remove the text also.

It does not mean, that it shows the html in the pdf. It’s just to show you, what it removes.

BEFORE:

<h1>Opgaven</h1>
[responsivevoice voice="Danish Female" buttontext="Læs opgaven"]Du skal læse historien. Når du er færdig med at læse, så kan du se, hvor mange af spørgsmålene, du kan svare på.
[/responsivevoice]

AFTER:
<h1>Opgaven</h1>

Hi again.

You showed me the path. I just solved it.
I was reading about the function that you wrote last.
https://codex.ww.wp.xz.cn/Function_Reference/add_shortcode

I changed a bit in the code and voila.
Now it is working.

Thank you so much for your time.

Best.

Btw. here is the working code for removing the shortcode, but keeping the content inside.

//remove responsive voice shortcode, but keep the content.

function baztag_func( $atts, $content = "" ) {
	return "$content";
}

function dkpdf_remove_shortcodes_bytag( $content ) {
	$pdf = get_query_var( 'pdf' );
	if( $pdf ) {
		add_shortcode( 'responsivevoice', 'baztag_func' );
	}
	return $content;
}
add_filter( 'the_content', 'dkpdf_remove_shortcodes_bytag');