Flattening an Image

[Sharanne]

I use CS5 and occasionally PS will not let me Flatten an Image and I can't seem to figure out why. Is there an easy answer to this?

Thanks for your help!!

 

[Hoogle]

sometimes if you have unrasterised layers it will not flatten an image for example text or smart objects once your editing is done go to layers>rasterize>all hope that helps and welcome to the forum

 

[jonpeter001]

I am using PSE 7. I have made a starry night. I have filled one layer with black & added monochrome noise. Then added an adjustment layer for the levels so that it looks like a night sky with stars. When I try to save the image as a .jpg, or anything other than a layered psd, it doesn't keep any of the adjustments.

I've also tried to change the levels directly on the black/noise layer. In the preview it looks like I want it to & then when I hit 'ok' it reverts back & doesn't keep any of the changes.

I am at my wits end!

 

[siodre]

make sure it's 8 bit rgb under image>mode.

 

[Sharanne]

Thanks to everyone who replied!! I will try these suggestions!