---
title: "CTFontCreateCopyWithAttributes(_:_:_:_:)"
framework: coretext
role: symbol
role_heading: Function
path: "coretext/ctfontcreatecopywithattributes(_:_:_:_:)"
---

# CTFontCreateCopyWithAttributes(_:_:_:_:)

Returns a new font with additional attributes based on the original font.

## Declaration

```swift
func CTFontCreateCopyWithAttributes(_ font: CTFont, _ size: CGFloat, _ matrix: UnsafePointer<CGAffineTransform>?, _ attributes: CTFontDescriptor?) -> CTFont
```

## Parameters

- `font`: The original font reference on which to base the new font.
- `size`: The point size for the font reference. If 0.0 is specified, the original font’s size is preserved.
- `matrix`: The transformation matrix for the font. In most cases, set this parameter to be NULL. If NULL is specified, the original font’s matrix is preserved.
- `attributes`: A font descriptor containing additional attributes that the new font should contain.

## Return Value

Return Value A new font reference converted from the original with the specified attributes.

## Discussion

Discussion This function provides a mechanism to change attributes quickly on a given font reference in response to user actions. For instance, the size can be changed in response to a user manipulating a size slider.

## See Also

### Creating Fonts

- [CTFontCreateWithName(_:_:_:)](coretext/ctfontcreatewithname(_:_:_:).md)
- [CTFontCreateWithNameAndOptions(_:_:_:_:)](coretext/ctfontcreatewithnameandoptions(_:_:_:_:).md)
- [CTFontCreateWithFontDescriptor(_:_:_:)](coretext/ctfontcreatewithfontdescriptor(_:_:_:).md)
- [CTFontCreateWithFontDescriptorAndOptions(_:_:_:_:)](coretext/ctfontcreatewithfontdescriptorandoptions(_:_:_:_:).md)
- [CTFontCreateUIFontForLanguage(_:_:_:)](coretext/ctfontcreateuifontforlanguage(_:_:_:).md)
- [CTFontCreateCopyWithSymbolicTraits(_:_:_:_:_:)](coretext/ctfontcreatecopywithsymbolictraits(_:_:_:_:_:).md)
- [CTFontCreateCopyWithFamily(_:_:_:_:)](coretext/ctfontcreatecopywithfamily(_:_:_:_:).md)
- [CTFontCreateForString(_:_:_:)](coretext/ctfontcreateforstring(_:_:_:).md)
- [CTFontCreateForStringWithLanguage(_:_:_:_:)](coretext/ctfontcreateforstringwithlanguage(_:_:_:_:).md)