How can I create my own online page blog and attach a PDF to it?

If you need a blog or a website, you may consider a https://wordpress.com/create/ or similar services.

JotForm is a web form builder platform. You can create different types of web forms with us. For example, contact forms, email list subscription forms, order forms, surveys, job application forms, feedback forms, etc.

So if you need a web form for your page, you can do this with us.

If you have any follow up questions, please let us know.