Proxy editing in Premiere Pro: the 2026 complete guide

The 4K problem in Premiere Pro

One hour of 4K ProRes 422 sits at around 500 GB. One hour of 6K BRAW from a Blackmagic URSA pushes past 1 TB. On a 5 day shoot, that means 10 to 15 TB of original footage, often delivered on a few SSDs that fill up faster than the editor can sort them. Premiere Pro is fast on most modern machines, but it cannot magically fit a 12 TB project into a 2 TB laptop SSD.

That is why proxies exist. A proxy is a low resolution copy of each source file. Premiere shows the proxy during the edit and keeps a link to the original for export. Same timeline, smaller footprint.

How Premiere handles proxies natively

Adobe ships proxy support directly through Ingest Settings and Adobe Media Encoder. The flow has four steps.

1. Open Project Settings, then the Ingest tab. Enable Ingest and pick Create Proxies.
2. Choose a preset. Adobe ships ProRes Proxy and H.264 Low Resolution by default.
3. Import your clips. Adobe Media Encoder runs in the background and writes the proxy files to your drive.
4. Toggle the proxy icon at the bottom of the Program Monitor to switch between proxy and full quality preview.

Codec choices for Premiere proxies

The codec you pick changes the size ratio, the decode speed, and whether other NLEs can read the proxies if you ever collaborate.

For most Premiere workflows, H.264 720p is the default sweet spot. It gives the smallest files, decodes instantly on any modern GPU, and matches the Premiere preview pipeline. ProRes Proxy is better when you bounce between Premiere and DaVinci Resolve or Final Cut Pro, because the codec stays consistent across NLEs.

Where the native flow falls short

The native Adobe flow encodes proxies on your local CPU. On a 4K shoot of 200 clips, expect 3 to 6 hours of background encoding on a MacBook Pro M3 Max before the project is even ready. During that time the laptop is hot, the battery drains, and you cannot edit smoothly.

A different approach with Sanbila

Sanbila is desktop software for video editors that takes a different angle on proxies. Instead of encoding on the editor's machine, proxies are generated on Sanbila's cloud, not your CPU. The originals stay in Sanbila storage, not on your SSD.

• Proxies are generated on Sanbila's cloud while you do something else.
• Seven presets out of the box: H.264 in 540p, 720p, 1080p; ProRes Proxy in 720p and 1080p; DNxHR LB in 720p and 1080p.
• Premiere reads the Sanbila Virtual Folder as a regular local folder. No plugin, no learning curve.
• For each file in the project, you can also choose to stream the original instead of using a proxy. The choice is per file, not per project.

When the edit is locked and you export the Premiere XML, Sanbila reads the timeline and identifies which files you actually used. You can then switch only those files to stream the original at full resolution for the final render.

Practical: how to start with Sanbila and Premiere

1. Create a Sanbila project and import your rushes (drag, drop, or paste a URL).
2. Pick a proxy preset. H.264 720p is a safe default for Premiere.
3. Open the Sanbila Virtual Folder in Premiere, just like any other media folder.
4. Cut on proxies offline. The originals stay in Sanbila storage, untouched.
5. At export, run Smart Relink on your Premiere XML to switch only the used files to stream mode, then render the master.