Questions on Image Resizing

Is there any more documentation on how the image resizing works?

If not, could someone explain these:

1. Just to clarify maxWidth and maxHeight automatically resize an image, for both iOS/Android. Correct assumption?
2. If maxWidth = maxHeight = n but for some image, the dimensions are a x b, is the image resized to nxn or are the proportions kept?
3. Suppose I provide some maxWidth and maxHeight, but upon checking the fileSize, I decide it’s still too large. Is there a way to correct this/change the {options} without showing the ImagePicker again? (Explanation: I am actually more interested in a maxSize than I am in a maxWidth/maxHeight, but I provide max dimensions, with an assumption that it the resized image will be less than the size cap.)
4. What exactly is the “quality” flag and how does it work?

Thank you!

[marcshilling]

1. Yes
2. Proportions should be kept
3. Not currently
4. Quality simply changes the photo compression. 0.0 (worst quality) to 1.0 (best)

[ialmoqren]

@IkerArb @weiliank @marcshilling Does anyone know in what unit the image size is returned on? and how to convert it to bytes