By NakodaX Marketing team
NakodaX · · Updated
NakodaX blog/Document Protection·2 min read
An ordinary PDF cannot expire, because the file itself is complete. To send one that stops opening, protect it first. With NakodaX you choose an expiry of 1, 7, 30 or 90 days, or a date, and an open limit. The file checks both each time it opens. You can also revoke it sooner.
By NakodaX Marketing team
NakodaX · · Updated

A date on a PDF is a promise. A protected file checks the date every time it opens.
You send a quote or a draft contract and want it to stop being usable after a set time.
A date written on the PDF is only a promise. The file does not know the date has passed.
A PDF is a complete file. Once it arrives, the recipient has a full copy with no connection to you. An expiring link only controls the link. If the file was downloaded from it, the downloaded copy has no end date.
The file stops opening, on any device. A reader whose access has ended sees that it has ended. If the file is forwarded, the new reader has to ask for access, and you or the recipient decides. A refresh counts as an open, so the open limit includes it.
Expiry ends future openings. It does not erase what someone already read, and it cannot stop a screenshot. A watermark with the reader's name and the time deters sharing on documents. The story of the quote that toured procurement shows a case where an end date matters.
Protect the PDF, set an expiry and an open limit, and revoke it sooner if you need to.
Related product
Protect documents before sharing. Control who can open them, what they can see, when access ends and how protected documents are used.
See how it worksStart a free trial, or tell us what you share and with whom, and we will show you how NakodaX handles it.
Real situations, and the video where there is one, on the same problem.
Video
Encryption protects a file while it is stored and while it moves. See what NakodaX does once an authorized person has already downloaded a copy.
Watch (6:50)Situation
You gave them the manual: processes, recipes, supplier terms, training. They dropped your brand and kept your playbook.
Read moreSituation
A lender asks for a bank statement and a photo of an ID. They need a few lines and a name. They receive every account number and transaction, and a photo that carries its location.
Read more
New to NakodaX? Watch the overview
A full walkthrough of how NakodaX helps a business keep control of documents, business data and source code after they are shared, moved or deployed.
Watch the video (8:49)
Document Protection · 3 min read
A normal PDF cannot be taken back once it is sent. A protected one can be closed. Here is what revoking does, how to do it in NakodaX and what it cannot undo.
September 14, 2026

Document Protection · 2 min read
DLP watches data leaving your systems. Document protection controls a file after it has left. Here is what each does and where they meet.
September 7, 2026

Document Protection · 2 min read
A detailed proposal wins work, but it should not stay open forever after the deal ends. Set an end date, track opens and revoke access with NakodaX.
September 21, 2026