Sharing a file online sounds like one task and is really three. Sending someone a copy they will keep, giving someone access to something you keep, and moving a very large file from one machine to another are different problems, and the tool that is perfect for one is annoying for the others.
Pick by what happens after the transfer, not by what is quickest to click.
The three ways, and when each fits
- Attachment — a copy, sent by email. Fine for a small final document: an invoice, a signed contract, a PDF nobody will edit. Fails on size limits, and forks the file the moment anyone changes it.
- Shared access — a link or an invitation to a file you keep. The right default for anything still being worked on, because the recipient always opens the current version and you can withdraw access later.
- Transfer service — a one-off upload for something large. Right for a 900 MB video going to one person once; wrong as a filing system, because the link expires and the file is gone.
The rule that avoids most confusion: if the file will change again, share access rather than a copy. Two versions in circulation is a problem that grows on its own.
Size limits and what to do about them
Most mail providers cap attachments somewhere between 20 and 25 MB, and the recipient's server may cap lower — a message can be accepted by your provider and bounced by theirs. Above about 10 MB, stop attaching and share a link instead. It is faster for both sides, and it does not sit in two mailboxes forever.
For genuinely large files, compressing rarely helps: video, images and PDFs are already compressed, and zipping them mostly changes the file name. Splitting an archive across parts is worse than a link in almost every case.
Sharing safely, in order
- Decide the access level before you share: read, comment, or edit. Edit-by-default is how documents get changed by people who only needed to look.
- Invite named people for anything sensitive; a link is forwardable and cannot be audited. If a link would embarrass you posted publicly, it should have been an invitation.
- Set an expiry where the tool supports it — contractors and one-off reviewers should not still have access next quarter.
- Send the link in a message that says what it is and what you want done with it. "Here you go" produces a follow-up question every time.
- Check the sharing state afterwards. Many accidental exposures are a folder inheriting a setting nobody looked at.
- Review access periodically and remove what has ended. Quarterly is enough for most teams.
In Ettex, every document starts private to you and sharing is a deliberate step: invite specific people by email at Editor, Commenter or Viewer level, or switch to a link that anyone can open, with levels changed or revoked from the same panel. Storage keeps one list of everything you have regardless of which app produced it — documents, spreadsheets, presentations, images, PDFs and uploads — with a Shared with me filter, favourites, filters by date, source and size, grouping and sorting, and Ctrl+K search across the lot. Because the file lives in one place, whoever you shared with always opens the current version rather than a copy that aged.
Mistakes that cost people files
- Sending the only copy as an attachment and deleting the original. Mail is not storage.
- Sharing a whole folder when one document was meant, and inheriting access nobody reviews.
- Relying on a transfer service link as a long-term location — those links expire by design.
- Sending a downloadable copy for review, then merging comments from three separate copies by hand.
- Using a personal account for company files, which leave with the person.
Frequently asked
What is the largest file I can email?
Usually 20–25 MB, and the recipient's limit may be lower. Above roughly 10 MB, share a link instead — it is faster and avoids silent bounces.
Is a share link safe?
Treat every link as forwardable. For sensitive content, invite named people so access is visible and revocable; use links for material you would not mind being public.
How do I send a large video file?
Upload it once and share the link, either from your storage or a transfer service. Do not split it into archive parts, and do not zip it — it is already compressed.
How do I stop someone accessing a file later?
Revoke their access, or expire the link. This only works if you shared access rather than sending a copy — a copy cannot be recalled.
Should I password-protect shared files?
For genuinely sensitive documents shared by link, yes, and send the password through a different channel. For named-access sharing it adds friction without adding much.
Share files online by asking one question first: does this person need a copy, or access? Get that right and the size limits, the expired links and the version confusion mostly stop happening.