Would it be appropriate to send your CV to a researcher who gave you their business card a few years ago? When I was presenting a paper at a conference ~3years ago, a researcher (who also happens to be a professor) gave me her business card after discussing with her after my presentation. 

Now that I’m almost done with my PhD, I’d like to approach her to see if there could be a possible job opportunity at the research institute mentioned in her business card.

I was wondering if it would be appropriate to send her my CV along the email? Or if it would be seen as if I am “forcing” her to read it, especially that it has been almost 3 years since we met?

Would it be better to start with an introductory email first, and then send her the CV only if she asks me to?

I also thought about including a link to my LinkedIn account in my email signature, so that she can check my profile (if she wants to), without me explicitly sending my CV in the email.
Why not just a simple email asking if she has any opportunities and reminding her that you met at that conference.

Include the cv as an attachment and she can open it, or not, as she wishes.