Draft it, send a link to sign, and keep the stamped PDF — with the signed original locked.
An agreement that lives as a photo in a WhatsApp thread is an agreement nobody can rely on. Terms get disputed and the signed copy is never where you need it.
TameerBook drafts the agreement, sends the other party a secure link to sign online, and keeps the signed PDF with your company signature and stamp — amend it later and the original stays locked.