ImageOptim Help
Description: How to use ImageOptim

# ImageOptim

## How to use

1. Drag'n'drop PNG or JPEG files or directories onto main table view in ImageOptim's window.
2. Wait until it finishes.
3. Profit! (from smaller files)

You can also drop files onto ImageOptim's Dock icon.

Learn how to change Preferences.

## Icons in file table

| Image has been optimised successfully.
| Everything went fine, but image couldn't be optimised any further.
| Optimisation of this file is in progress.
| File is queued to be optimised after other files are finished.
| There was an error during optimisation. You'll find explanation by running `Console.app`.

## How does it work

ImageOptim is a front-end (GUI) for these applications:

- OxiPNG
- PNGCrush
- AdvPNG
- JpegOptim
- MozJPEG
- and optionally PNGOUT.

ImageOptim runs them and automatically selects smallest file.