How to pinch and scale image size simultaneously?

I'm loading an imageview with picasso to specific width and height.
```
Picasso.get().load(imageUri)
.error(R.drawable.image1)
.resize(width, height)
.into(imageView);
```

No I want to be able to pinch the imageview so that image size becomes larger or smaller than initial image size.

Now I can only pitch the image inside its initial image size.
How can I do it?