Resize image without loss of information

I was trying to do really the same functionality of resizing images like in MS Word.

I want to resize BufferedImage but I’m losing some information during process of resizing.

I tried to implement two approaches, but both produced same result.

Before any resizing:

Picture after few resize actions in my application:

First approach:

image = Thumbnails.of(image).size(w,h).asBufferedImage();

Second approach:

image = toBufferedImage(image.getScaledInstance(w, h, Image.SCALE_SMOOTH));

image is instance of BufferedImage, w is new width of image and h is new hight of image

Any idea, what I’m doing wrong?