How to share confidential documents with private links
A simple guide to sending confidential PDFs, contracts, reports, and client files with better control than email attachments.
Who this is for
For founders, operators, lawyers, consultants, finance teams, and anyone sending documents that should not spread casually.
Confidential does not always mean complicated
Many confidential files are ordinary business files: contracts, pitch decks, board reports, HR documents, invoices, product plans, legal drafts, investor updates, and signed PDFs. They do not always need a heavy portal, but they do need a better path than an uncontrolled attachment.
A private link makes the delivery clearer. The recipient gets the file, and the sender keeps more control over how long that file remains available.
Choose controls based on the file
For a routine document, an expiring private link may be enough. For sensitive material, add password protection or use end-to-end encryption when available. For important final versions, keep a copy in Vault.
The goal is to match the control to the risk. A signed NDA and a public brochure should not travel with the same assumptions.
Do not forget the data after delivery
Confidentiality is not only about who can download the file today. It is also about what the service does with the file afterward. Private documents should not be scanned for ads, indexed as public content, or used to train AI models.
Sandra is not anti-AI. It simply keeps private customer files out of AI training. Your documents stay your documents.
A clean confidential handoff
Give the transfer a clear name. Keep the message short. Use a private link. Set an expiry date. Add a password or stronger encryption if the file needs it. Store the final version in Vault if you may need it again.
That workflow is simple enough for clients and careful enough for serious work.
Quick answers
Can I share confidential PDFs with Sandra?
Yes. Sandra is designed for private file transfer, including PDFs, contracts, reports, archives, and client documents.
Are confidential documents used for AI training?
No. Sandra does not use confidential documents, transfers, uploads, or Vault files to train AI models.
Should confidential links expire?
Often, yes. Expiring links reduce long-term access when a document only needs to be available for a limited time.
When should I use Vault?
Use Vault for final documents you may need to retrieve, resend, or keep organized after the transfer expires.