With Pages '09 (version 4.3 ¹):

1. Select a picture
2. Configure it completly as you wish
3. Define it as the default image style:

Format > Advanced > Define Default Image Style

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¹)  I removed my installation of `Pages '11` due to its lack of functions. Its documentation isn't available on the Apple web server: [Pages manuals][2].

With Pages '09 (version 4.3 ¹):

1. Select a picture
2. Configure it completly as you wish
3. Define it as the default image style:

Format > Advanced > Define Default Image Style

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With `Pages 5` (version 5.5.1):

1. This function is missing.
2. The creation of an Image Style doesn't permit to save the Text Wrap tuning.

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¹)  I removed my installation of `Pages '11` due to its lack of functions. Its documentation isn't available on the Apple web server: [Pages manuals][2].

1. Select a picture
2. Configure it completly as you wish
3. Define it as the default image style:

Format > Advanced > Define Default Image Style

With Pages '09 (version 4.3 ¹):

1. Select a picture
2. Configure it completly as you wish
3. Define it as the default image style:

Format > Advanced > Define Default Image Style

---

¹)  I removed my installation of `Pages '11` due to its lack of functions. Its documentation isn't available on the Apple web server: [Pages manuals][2].