Sejda's free tier doesn't require an account, which we respect — but its own pricing page lists page limits, hourly limits, and per-tool limits that only go away on a paid plan. iampdf has none of those limits because nothing is uploaded to be metered in the first place.
Compared against Sejda’s own pricing page, last checked August 2026. Their plans can change after that date — verify current details on their site before relying on this for a purchase decision.