<p>A record tied to the model beats a PDF because it can answer follow-up questions: what changed, who changed it, and which issue it belongs to.</p> <p>When you send a PDF, the other side gets a picture. They cannot see what changed since the last version or trace an item back to the geometry. The meeting goes to finding out who moved a duct instead of making decisions.</p> <p>BidLight keeps one live record of the project inside Revit and Navisworks. Every publish is a versioned snapshot, and any two revisions compare element by element.</p> <p>What the other side sees:</p> <ul><li>The change, not a snapshot.</li><li>Issues pinned to the element, with the sheet and revision they came from.</li><li>Who owns each one, and the proof it was closed: a screenshot, a tagged user and the model commit.</li></ul> <p>Plans run from $260 to $590 per license per year, with unlimited projects.</p>