Export only the source media your Final Cut Pro project needs.

1. 01

   Drag the project from Final Cut Pro onto CoreTrim.

   Open CoreTrim from Final Cut Pro, then drag the project you want to process directly onto the CoreTrim workflow extension. CoreTrim receives the project data it needs without a separate export step.

   

2. 02

   Let CoreTrim read the project.

   CoreTrim reads the project, finds file-backed sources, shows the original project size, and estimates the exported media size.

3. 03

   Choose Trimmed Sources or Untrimmed Sources.

   Use Trimmed Sources when you want smaller media with handles. Use Untrimmed Sources when you want a full source copy for every source used by the project.

   

4. 04

   Set handles and multicam behavior when trimming.

   For trimmed exports, choose handle length and whether CoreTrim should process all multicam angles or only the angles used in the cut. These controls are locked for untrimmed source copies because no trim decisions are needed.

   

5. 05

   Review the status column.

   Each source shows CoreTrim's safest available action: passthrough trim, transcode trim, copy original, or skip. Change a source only when you have a reason to override the automatic choice.

   

6. 06

   Export to a new folder.

   CoreTrim writes new media and a new project export in the destination you choose. Progress text shows whether CoreTrim is trimming or copying each source.

7. 07

   Import the exported project into Final Cut Pro.

   Bring the exported project back into Final Cut Pro and review it. The new project should link to the exported media, not your original sources.

   

8. 08

   Keep the export report.

   The report explains what was trimmed, copied, skipped, or warned about, and gives you a source list for the project export.

1. 01

   1- READ ME.txt

   Plain-text instructions for the export: how to import the project file into Final Cut Pro, what to review before deleting or archiving original media, and what every other item in the folder is. It is written for whoever opens the archive next, which may not be you.

   

2. 02

   2- <Project>_Trimmed.fcpxml

   The project file you import into Final Cut Pro. It links to the exported media in this folder and never to your original source files, so keep it with the folder — moved on its own, it has nothing to link to.

   

3. 03

   3- Core_Trim_Report.html

   The export report, which opens in any browser. It shows how CoreTrim handled each source — trimmed, transcoded, copied, or skipped — along with warnings, storage figures, and the source list for the exported project.

   

4. 04

   4- Source Lists

   The same source list in two formats, in an HTML folder and a CSV folder. The HTML version sorts in a browser; the CSV version opens in a spreadsheet app for handoff paperwork or an archive inventory.

   

5. 05

   5- <Project>-TrimmedMedia

   The exported media itself — every file the exported project links to. A Trimmed Sources run names this folder -TrimmedMedia; an Untrimmed Sources run names it -SourceCopies.

   

6. 06

   6- Motion Template Resources

   Motion templates CoreTrim copied, written when the project uses local Motion template files. Installed effects, titles, generators, and transitions stay as references to what is installed on the Mac that opens the project, so they do not appear here.

   

Alongside the numbered items is a Diagnostics folder — tagged orange in the Finder on macOS 26 and later — holding the record of the export. You do not need it for the import, and it can be deleted from an archive, but it is the one thing to send if you have an issue you want us to look at. See Reports and Diagnostics in the FAQ.