1. Look at the picture format. If the file is in bmp file format, the suffix must be modified first.

2, and then type with drawing software, bmp images should be reduced in size and the file format should be changed to jpg.

3. After entering the main interface of the drawing software, click the Save As option button under the file.

4. Then save it in jpg format.

5. You can compare the size with the previous picture before saving.

6. You can also save the picture in jpg format through Meitu Xiu Xiu, open the software, and click Save and Share to change the picture quality.

7. You can also click the file option in the menu bar through photoshop, and choose the format for saving as web from the following options.

8. Select the jpg option in the dialog box to adjust.