File quality
Readable and internally consistent matters more than invented formatting rules
Use clear scans that show the full document. Check that the passport number, name, nationality and travel dates in your uploads agree with the online form.
Simple filenames and standard file formats can reduce technical problems, but claims such as “spaces or dashes always crash the portal” should not be presented as official ICA requirements without a live portal instruction supporting them.
Before uploading:
open every file and confirm that text, passport numbers, dates and signatures remain readable.