---
title: Size
framework: QuickTime File Format
role: symbol
role_heading: Data field
path: quicktime-file-format/preview_atom/size
---

# Size

A 32-bit integer that specifies the number of bytes in this preview atom.

## See Also

### Atom fields

- [Type](quicktime-file-format/preview_atom/type.md)
- [Modification date](quicktime-file-format/preview_atom/modification_date.md)
- [Version number](quicktime-file-format/preview_atom/version_number.md)
- [Atom type](quicktime-file-format/preview_atom/atom_type.md)
- [Atom index](quicktime-file-format/preview_atom/atom_index.md)