Thank you page: Can't add button to download original PDF

Quiero añadir el botón para descargar el PDF del formulario o el PDF original en la página de confirmación pero no se porqué no me deja añadirlo

Hi cimeiformularios,

Thanks for reaching out to Jotform Support. Unfortunately, our Spanish Support agents are busy helping other Jotform users at the moment. I'll try to help you in English using Google Translate, but you can reply in whichever language you feel comfortable using. Or, if you'd rather have support in Spanish, let us know and we can have them do that. But, keep in mind that you'd have to wait until they're available again.

Now, coming back to your question, when I cloned and tested your form, the same thing happened for me. So, I tested it using an incognito window, and I was able to add the PDF in the Thank you page. See screencast below for my result:

Can you please check again? I've cleared your form cache as a precaution. Also, you can clear browser caches or try to fill out the form on another browser.

I moved your other question to a new thread and helped you with that here.

Give it a try and let us know if you need any other help.