I will be able to create this program for you, if I understood it correctly. I have written several stand-alone Java applications ran from the Windows desktop for a private business.
I do not speak Polish. But if I translated it correctly, it seems you want to convert several panoramic JPEG files into an animated GIF. Presumably the animation would pan across the image, say left to right. You did not say where the images come from, but they can be loaded from files, or the web. Let me know what further features it should have. There are several Java libraries that create GIFs, so there is no problem with your basic requirements.
I propose giving you a basic Java program to begin with, within 3 days of your accepting. It would just load JPEGS and create the GIF, with a setting for speed & direction. The remaining milestone(s) would involve testing and improvements for completion. Source code would be your property.