Document Verification First of all make sure that you can provide all the files needed for the visa program. Including your passport. You need to include all the vital documents with a scanned copy, so it will be easier for you to submit an application to the embassy. Sao Tome e-Visa: No Longer A Mystery Alright, so let us move on to another tip. If you think the entire procedure of the visa application will take more than a week then it is time to acquire the required files ready.