<div>
Open the file in Photoshop, go to Image &gt;&nbsp;Mode &gt;&nbsp;CMYK.
</div>


Open the file in Photoshop, go to Image > Mode > CMYK.

<div>
Tried that, but when I save it, and then place it into indesign, or reopen it in illustrator/photoshop it reverts to RGB. 
</div>


Tried that, but when I save it, and then place it into indesign, or reopen it in illustrator/photoshop it reverts to RGB.

<div>
I agree with &nbsp;Bong Soo. It would be best to change it to CMYK and save as a .tiff for indesign. A png is not recommended for print.
</div>


I agree with  Bong Soo. It would be best to change it to CMYK and save as a .tiff for indesign. A png is not recommended for print.

<div>
Forced accept.<br />
<br />
Computer101<br />
EE Admin
</div>


<div>
<div class="content wysiwyg-content">
How can I convert RGB png files to CMYK png files?
</div>
</div>


How can I convert RGB png files to CMYK png files?

How do I convert RBG png files to CMYK png files?

Photo and imaging software is used to edit and compose raster images; Adobe Photoshop, which dominates the market, has its own topic. Common actions include cropping, slicing, retouching, color replacement, masking and erasing. Other programs include Apple Photo, Corel PaintShop Pro, GIMP, Serif PhotoPlus, Pixlr, PhotoScape, Picasa and IrfanView.