Php image slicing library with optimization?

Question

PHP

Hello!
The Google PageSpeed ​​Insight service complains that the images are not optimized and can be compressed.
What php library to take, which can cut and optimize, compress pictures?
There are tinypng.com and analogues, but I don’t want to be tied to an external API.
Are there libraries similar to phpThumb, but with image optimization and compression?!

Answer 1

Imagemagik, gd not your religion?

Answer 2

Imagick normal.
We cut out the exif using the stripImage() function , then set the compression ratio of the flicker to no more than 85% (experimentally determined). And voila, Google doesn't swear.

Answer 3

and GD has been canceled for a long time? she does everything well.