Dear Aspirant,

If you have submitted the form then there is no way to go back and change these. But if you are in the page where you have to confirm the photo and signature then I think you should see all the red marking the web page is showing chances are your photo size or your signature size or maybe the format you are uploading is not accepted by the web page.

In case you don't find any solution contact the Help desk or customer support of SBI CLerk.

Good luck