# Primary-Reference.

## What does the pattern do?

- Allows attaching specific files or links to refer to them.

## When should the pattern be used?

- When users want to refer to specific files or pages.

## Recommendation

- Check for your specific case how many files, their size and file formats should be allowed.

## Example

 ![Example for a primary reference](https://digital.sbb.ch/assets/images/patternlibrary/components/en/pattern_primary_reference_light_en.webp "Pattern primary-reference")

## Specifications

[Design](https://www.figma.com/design/ASKJJ0RgQNp0TAhXBpLmXd/AI-Patterns-Documentation?node-id=2235-16712)

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Source: https://digital.sbb.ch/en/design-system/patternlibrary/patterns/primary-reference/