Can You Alter or Update My Existing JPG/ PNG Images?

Generally, the answer will be no, but it can depend on the item you want updated.

If it is an original file with layers and editable text etc then we may be able to assist dependent on the file format sent to us.
If it is just a raster file (jpg, png etc) unfortunately we will not able to help and would advise you to contact the artist that did the work originally.

If this is not possible then we would work with you to create a new artwork.