How to pre-populate form object in Django

Question

My code:

class FileForm(forms.Form):
    title = forms.CharField()
    content = forms.CharField(
        widget=forms.Textarea(attrs={"rows": 15, "cols": 60}))

def edit(request, title):
    content = util.get_entry(title)
    form = FileForm()
    form.title = title
    form.content = content
    return render(request, 'encyclopedia/edit.html', {
        "title": title,
        "content":content
    })

In edit.html:

<form action="{% url 'save_edit' %}" method="POST">
    {% csrf_token %}
<input type="hidden" value="{{ title }}">
<textarea>{{ content }}</textarea>
<input type="submit" value="save">

How do I able to pre-populate the form with the title and content ?

I do not find answer in django documentation or any answer in this platform related to my question.