Change Accept Formats

When working with HTML <input /> element, we have an accept="" attribute that works defining the visible file types into the file picker dialog. An better, and complete, description of this attribute can be found at MDN.

To define this attribute, with the ImageUploaderWidget, we can set the attrs property when instantiate the ImageUploaderWidget, like:

from django import forms
from image_uploader_widget.widgets import ImageUploaderWidget
from .models import CustomWidget

class TestForm(forms.ModelForm):
    class Meta:
        widgets = {
            'image': ImageUploaderWidget(attrs={ 'accept': 'image/png' }),
        }
        fields = '__all__'