No-download and no-copy: practical behavior

Viewer restrictions remove easy extraction paths for normal users: no download button, no plain text copy flow, and restricted print behavior. Strong in daily business use, but not an absolute technical lock.

No direct download Copy friction Print restrictions Honest boundary

Try settings What it blocks

Three related but different things

No download — prevents normal one-click file save from the viewer UI.
No copy — limits straightforward select-copy text behavior for regular users.
View-only mode — content remains in controlled viewer flow instead of file handoff.

Expected behavior across devices

Action	Desktop browser	Mobile/in-app browser
Download	No direct save button	No direct save entry in normal flow
Text copy	Select-copy is restricted	Long-press copy behavior is limited
Print	Can be blocked per setting	Often no easy print path anyway
Screenshot	Still possible	Still possible

No print and no download viewer mode — Viewer-level restrictions work best when combined with watermarking and lifecycle controls.

Best-fit file types

Good fit

Quotes, drafts, portfolio previews, internal notes where “read yes, file transfer no” is the goal.

Poor fit

Workflows that require recipients to print/sign/upload an annotated file copy.

Boundary

Not absolute anti-extraction

Advanced users may still attempt technical workarounds. The goal is to raise effort and reduce common misuse.

Pairing matters

For sensitive files, pair restrictions with watermarking, access gating, and expiry to reduce both leakage and lifetime exposure.

Restriction icons communicate policy quickly to recipients.