> ## Documentation Index
> Fetch the complete documentation index at: https://docs.superdoc.dev/llms.txt
> Use this file to discover all available pages before exploring further.
# Permission Ranges extension
export const SourceCodeLink = ({extension, path}) => {
const githubPath = path || `packages/super-editor/src/editors/v1/extensions/${extension.toLowerCase()}`;
const githubUrl = `https://github.com/superdoc-dev/superdoc/tree/main/${githubPath}`;
return ;
};
Control which document regions are editable based on user permissions from Word permission ranges.
When a Word document contains permission ranges (`w:permStart`/`w:permEnd`), SuperDoc automatically restricts editing to the allowed regions for the current user.
## How it works
Permission ranges define editable regions within a protected Word document. The extension:
1. Parses `permStart` and `permEnd` markers from the document
2. Matches the current user's email against the `ed` (specific editor) or `edGrp` (editor group) attributes
3. Allows edits only within matched permission ranges
4. Blocks edits outside permitted regions
When a document is in viewing mode and has permission ranges matching the current user, the extension automatically enables editing within those ranges.
## Permission matching
Ranges can target specific users or groups:
```xml theme={null}
```
The `ed` attribute uses the format `domain\username`, matched against the user email configured in SuperDoc.
## Word export
Permission ranges export as native Word permission markers:
```xml theme={null}
Editable content here
```
## Source code