DropYourFiles

Blog · October 28, 2026

How to send 4K video without losing quality.

“Is this the final? It looks blurry in the group chat.” You’d sent the film by text to save time.

Upload the 4K master and send your client a link, so the file they download is the exact one you exported. A video loses quality when something re-encodes it to make it smaller on the way: a text message, a chat app, or a player your client saves from. A link that hands over the file itself keeps every frame at full resolution and the way you graded it.

By Vitaly Kibenko

What happens to a film on the way.

  • Texts

    An iPhone can compress a video it sends by text when it needs to, Apple says, and each carrier sets its own size limit. What arrives is a smaller copy of your film.

  • Email

    Gmail and Outlook.com cap attachments at 25 MB. At 4K, that’s a few seconds of film. How to email large video files covers the links they make instead.

  • Anything that streams

    A film that plays in a browser plays a streaming copy, made smaller so it doesn’t stall. That’s fine for watching. The question is whether the download button hands over that copy or your file.

A woman at a laptop on a desk in the sand dunes at golden hour. The headline reads “One link from anywhere, to anyone.” and the line at the foot, “Sent from the dunes.”
The master your client downloads is the file you uploaded, at full size.

Stream a copy, download the master.

On DropYourFiles you upload the master once. Your client plays a streaming copy in the browser, with Review copy across it while notes are still coming in. When they press Approve, the download is the master file itself, unchanged, with the name you gave it.

Four sizes from one upload.

When your client downloads a film, they choose a size, each with how big it is: Original (your master), 4K when the master is 4K, 1080p and 720p. The smaller ones are MP4s that play on any phone or laptop, so your client can post or forward the film without passing the master around. You don’t export them; they’re made from what you uploaded.

A 4K copy is encoded from the master at about 14 Mbps. When the master is HDR, the 4K copy is HEVC and stays HDR.

When the master is ProRes.

A ProRes master is big and doesn’t play on a lot of clients’ computers. The 1080p MP4 is usually what they want to watch, and the ProRes is what their editor wants. Both come from the same link: how to send ProRes files to a client.

Questions.

How do I send someone a video and not lose quality?

Send a link to the file instead of the file through a text or a chat. Your client downloads exactly what you exported.

Can my client get the 4K and a smaller copy?

Yes. The Original download is your 4K master as it is, and the 4K, 1080p and 720p MP4s are there for anyone who needs something lighter.

Can my client watch before downloading?

Yes. The film plays in the browser on a phone or a computer, and nothing downloads until they choose to.

What size can I upload?

Your plan’s room is the limit: 5 GB with 1 hour of video on Free, 1 TB with 15 hours on Solo.

Keep reading.

New here? See what DropYourFiles does, or compare the plans.

Sources

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