Абарона і подпіс
Дадайце пазнаку часу дакумента RFC 3161 у свой PDF з дапамогай надзейнага сервера Time Stamp Authority (TSA). Пацвярджае існаванне вашага дакумента ў пэўны момант часу. Сертыфікат не патрабуецца.
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Timestamp PDF lets you add an RFC 3161 document timestamp to your PDF using a trusted Time Stamp Authority (TSA) server. Proves your document existed at a specific point in time. No certificate required — entirely in your browser, with nothing to upload. It applies cryptography and document controls locally, so your passwords and protected files are never exposed to a third party.
Processing is powered by WebAssembly — the same technology behind professional desktop PDF software — so the tool stays fast even on large or complex documents, and works the moment the page loads. Your document is processed in-browser and never transmitted anywhere, so even highly sensitive files remain fully under your control.
It is completely free — no account, no watermarks, and no file-size limits — and works on Chrome, Firefox, Safari, and Edge across desktop and mobile.
Звязаныя інструменты
