AP: Issue with "indexed" vs RGB transparent PNG

[prodport]

We're having some issues with transparent PNG images. One of the web apps we're using needs to have the PNG images use an "RGB Image mode". The app developer says they show as "Indexed". My guess is the designer created them in Adobe Photoshop or Illustrator. The designer is out of the country now and unreachable for several weeks.

 

1. How do I tell in Affinity Photo if this "indexed" mode is being used? I've gone through the settings but don't see anything.

 

2. Can I convert these images in Affinity Photo to RGB mode? In checking Affinity Photo, I see that if I go Export | More there is a setting for ICC Profiles that does have some "RGB" entries.

 

Thanks in advance.

 

 

Edited August 28, 2017 by prodport
typo on "rgm". Should've been "rgb"

[R C-R]

Please excuse my ignorance, but what is "RGM mode"?

[MEB]

Hi prodport,
Welcome to Affinity Forums
Affinity Photo doesn't support indexed colour mode as Photoshop (except when exporting). So if you open an indexed image in Affinity Photo it will be opened in RGB mode. Just save it as PNG-32 from Affinity to save it as a "regular" PNG (by regular i mean RGB mode).

[prodport]

Thanks for the prompt reply. I'll give that a try.

 

I also apologize for the earlier typo "RGM mode". I edited the original post.