Document Size & File Format - All documents should be uploaded as PDF not more than 4MB, except for digital photo which should be in JPEG format and not less than 60KB. For each placeholder, it should be one PDF. If you have multiple pages, merge them into one PDF for each placeholder. If the file size exceeds 4MB, scan the documents with scanner settings at 100 dpi or less but ensure that the files are legible. You can also use online tools like Small PDF to compress, merge and split PDFs etc (
https://smallpdf.com/).