How do I remove the white background in a round .PNG?

Hi guys.
I've just found out that importing my own images gives me a lot of room for customization, but now that I've created a round image in Paint and tried to insert it into CC3, I'm having difficulty with removing the white background, so I still get a square image when I attempt to use the symbol.

How do I remove the white from the image, so it displays correctly as a round image instead?

I don't expect this to be difficult, I'm just not familiar enough with the entire symbol drawing/importing sequence yet.

Comments

  • MonsenMonsen Administrator 🖼️ 81 images Cartographer
    edited June 2013
    The absolutely best way to handle this is to set this region as transparent in your image editor. I don't know if Paint can do this however, it being a rather simple program (Then again, it might, I don't know it that well). Programs such as Gimp and Paint.net (not to be confused with regular windows paint) generally work much better for this tasks however.

    However, If you wish to do it in CC3, when you import an image as a symbol through Symbols -> Import PNG's, you have a button in this dialog titled "Bitmap Options". Click this to access transparency options. As long as you have an image without any built-in transparency, you wish to utilize the bottom two options, either by saying that all pixels that has the same color as the upper left pixel should be transparent, or that a specific color value should be transparent.

    Note that if you wish to have multiple separate colors transparent, or want partial (alpha) transparency, you MUST do this from your image editor. Also note that if your images have been anti-aliased, which generally makes it look better, transparency becomes a real pain, and generally results in a light halo around the image (transparency should always be defined BEFORE anti-aliasing an image).
  • VintyriVintyri Newcomer
    Posted By: MonsenI don't know if Paint can do this however, it being a rather simple program.
    Windows Paint does not have the alpha channel ability with PNGs. As you recommended, The GIMP, Paint.net or also Adobe Photoshop are the most common tools for adding transparency.
  • Thanks a lot for the help.
    I looked into Paint.net and it was pretty simple to use, but I actually ended up doing it in CC3 since it's a lot easier when the entire catalog has the same properties that need adjusting.
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