If you've already saved your project, you can press Ctrl+S (or click the floppy disk icon in the upper-left corner of the screen) to save the changes. Keep in mind that doing this while editing an existing photo will replace the photo with your edited version. For this reason, it's advisable to create a copy of the photo and edit it rather than editing the original. It's in the top-left corner of the Paint window. The menu will appear. This option is in the middle of the menu. Selecting it prompts another menu to appear to its right. It's in the right-hand menu. A "Save As" window will open. You can select any other picture format (e.g., PNG picture here). In the "File name" text box, type in whatever you want to name your project. Click a folder on the left side of the window (e.g., Desktop) to select it as the place in which to save your project. It's in the bottom-right corner of the window. Doing so will save your file under your selected name in your specified save location.

How would you rephrase that briefly using Indonesian?
Simpan perubahan pada proyek Paint yang saat ini digarap. Klik File. Pilih Save as. Klik JPEG picture. Masukkan nama berkas. Pilih lokasi penyimpanan. Klik Save.