I am creating a theme myself.
When the admin publish a new post, I know how to get the title of this post, the feature image, the content, etc and output them into a template page.
How can I get the PDF file of post and create a button so when the user clicks on it then the PDF will download?
Keep on mind that on this page template,the admin will upload a pdf file.
Also I dont want to use a plugin.
Read more here: Get the PDF of WordPress post