Re: [Gimp-user] Need help with transparency

[Steve Kinney <admin pilobilus net>]

On 05/20/2016 02:33 PM, Joseph A Nagy Jr wrote:
> On 05/19/2016 23:33, acctingman wrote:
> > Hello
> >
> > Just downloaded GIMP yesterday and I need help with transparency 
> >
> > In the attachment, the little open area (that is white) I need it to be
> > transparent so I can see another numbered dial that it will go on top of.
> >
> > I know nothing about image editing, so this is a big request and more than happy
> > and willing to do my homework.
> >
> > Could someone break down how to make that little area transparent (while keeping
> > all the icons and lettering on the dial remain white)?
> >
> > Thank you
> >
> > Attachments:
> > * http://www.gimpusers.com/system/attachments/245/original/base.png
>
> Use the cut tool to remove that section, or the eraser tool to make to
> erase the color and leave a transparent section.
>
> original:
> http://joseph-a-nagy-jr.us/images/tech-support/gimp-help/01.base.png
>
> example modification using eraser tool:
> http://joseph-a-nagy-jr.us/images/tech-support/gimp-help/01.base-example.png

And make sure the image layer you are working on has an alpha channel,
which enables transparency i the layer.  Find your Layers dialog dock
(it's the open tab in "number four" in the illustration on this page:
http://docs.gimp.org/2.8/en/gimp-concepts-main-windows.html ).  Right
click on the layer thumbnail, and look for "Add Alpha Channel" in the
menu that opens.  If it's grayed out, no worries, there's already an
alpha channel for that layer.  If it's not grayed out, select it to add
an alpha channel.

Then, anything you "erase" or "delete" from the layer will become
transparent, rather than the current background color as set in the main
toolbox (white by default).

:o)

Steve