Premiere · Beta
Preserve your Premiere project
Keep the native project intact. Change only the fields this mode can verify, such as names and supported native effect values.
PreservationBeta
Open a .prproj, change the names, effect values, keyframes and cut timings this mode can verify, and download a copy with every other byte untouched.
Details and limits
Processing runs in this tab. Nothing is uploaded or saved to the browser; download a copy before closing. Up to 16 MiB, 64 MiB expanded. Original media, fonts and plugins are still needed in Premiere, and retaining bytes does not certify how they render.
What can be edited, by feature
| Feature | Editing | Scope |
|---|---|---|
| Sequence, bin and clip names | Supported profiles | Verified linked name fields. |
| Scale, rotation, crop and anti-flicker | Existing controls | Recognized Motion scalar records and existing scalar key values. |
| Opacity | Existing controls | Scalar opacity and existing key values, plus 27 static blend modes on verified paired native records. |
| Position and anchor point | Existing controls | Normalized X/Y values, point key creation/removal/retiming and manual spatial Bezier handles on recognized Motion records. |
| Uniform scale | Existing controls | Explicit static checkbox records. Omitted defaults remain read-only. |
| Clip audio level and pan | Existing controls | Recognized clip levels in dB, exact silence and mono/stereo pan. The omitted hard-right pan default is editable. Routing remains read-only. |
| Animation creation, timing and easing | Partial support | Add/remove/retime recognized video, spatial and audio keys; Linear, Hold and manual Bezier handles. Audio uses native amplitude/balance units. Automatic/continuous temporal modes remain read-only. |
| Clip structure and transitions | Partial support | Enable/disable clips; move/trim eligible cuts and their linked companions, extend within verified media bounds, and explicitly ripple following clips on affected tracks. Split recognized intrinsic-effect clip groups, move between compatible existing tracks, including empty video and standard stereo audio tracks, and adjust existing cross-dissolve timing. Other transitions and retimed/nested cuts remain pending. |
| Video effect enablement | Supported wrappers | Enable or bypass individually owned, non-intrinsic video effects using Premiere's host flag. Private plugin parameters and binary payloads stay unchanged. |
| Speed and time remapping | Read-only | Speed ramps, reverse playback and source-clock changes are pending. |
| Audio mixer, mute and routing | Partial support | Native mixer/submix volume and mute, intrinsic clip mute and existing mixer automation values. Sends, channel mapping and routing edits remain pending. |
| Titles, captions and graphics | Partial support | Existing native text runs, font names and explicit size, bold, italic, fill and alignment fields. Native subtitle text and existing styles use independent timeline payloads while retaining imported source captions and timing. New runs, shapes, caption timing/creation and MOGRT editing remain pending. |
| Color, LUTs, masks and tracking | Partial support | 26 recognized Lumetri scalar controls and their source-time animation: basic correction, creative adjustments, HSL refinement/correction and vignette. Populated legacy color blobs, LUT selection/import, curve widgets, masks and tracking remain read-only. |
| Nested sequences and multicam | Partial support | Select existing multicam video angles on recognized cuts; audio selection stays unchanged. Nest restructuring and dependency editing remain pending. |
| Markers, media links and project settings | Partial support | Comment-marker names and multiline text. Marker timing, cue triggers, relinking, resolution, frame rate and color management remain read-only. |
| Third-party plugins and Dynamic Link | Native integration required | Data is retained; editing and rendering need the corresponding installed software, dependencies and integration. |
| Missing defaults and other native versions | Partial support | Verified pan, mixer volume, mute and clip-enabled defaults are supported. Other defaults and object versions need native fixtures and validation. |
| Native preview and rendering | Native integration required | This workspace exports projects. It does not execute native effects, render video or sync changes to shared rough cuts. |
- STEP 1
Open a .prproj
It is read in this browser. Nothing is uploaded.
- STEP 2
Change what can be verified
Names, supported effect values, keyframes and cut timings.
- STEP 3
Download a copy
The rest of the project is kept as it was. Your original is never changed.