imageintervention write text to image results in different sizes depending on resolution of image

[nikocraft]

This is my code:

    ImgResizer::make($folder . '/'.$name)->text($watermark->body, $width-15, $height-10, function($font) {
        $font->file(public_path('fonts/NunitoSans-Regular.ttf'));
        $font->size(52);
        $font->color('#ffffff');
        $font->align('right');
        $font->valign('bottom');
       })->save();

I am using text to insert a simple watermark. The problem is that text is not the same size on different resolutions.

for example:

Why is it different like that, is this a bug? What can I do to keep it the same size on all images?

[matthewnessworthy]

if you want to have the text at the same size relative to the resolution of the image you're going to have to calculate the font size manually

e.g., if your image is 100x100, and you use a font size of 10, you might need to use a font size of 20 another image is 200x200