Upload requirements directory

The technical upload rules of specific portals and programs, taken from their official documentation. Every entry links to the primary source and shows the date we last verified it. This is a technical reference — it is not application guidance, and requirements can change: always confirm against the official source before submitting.

• USCIS online filing — evidence upload requirements

  The file size and format rules USCIS documents for uploading evidence while filing a form online in a USCIS account, from the official guidance page.

  Last verified 2026-08-29

• Gmail — attachment size limit (personal accounts)

  Gmail's official 25 MB attachment limit for personal accounts, and what happens to larger files.

  Last verified 2026-08-29

• U.S. Court of Appeals (4th Cir.) — flattened PDF forms for CM/ECF

  The Fourth Circuit's published requirement to flatten fillable PDF forms before e-filing in CM/ECF, quoted from the court's technical guidance.

  Last verified 2026-08-29

• U.S. visa digital photo — official image spec

  The exact digital photo file spec (dimensions, format, size, color space) published by the U.S. Department of State for visa photos.

  Last verified 2026-08-29