Click on submit button the uploded file format should be convert .png

Question

If uploded file format is .bmp, .tif,.tiff, etc it should convert atleast one of this format like .jpg/.jpeg/.png on button submit,

 

<ejs-uploader id="formFileCheque" autoUpload="false" multiple="false" allowedExtensions=".jpeg,.jpg,.png," maxFileSize="40000000"> </ejs-uploader>

 <input id="btnSave" type="submit" value="Save"  />