Editing GIF is possible, but... the GIF is an indexed-color format, pixel colors are coded on one byte (256 values) that are really indexes into a "color map". So you have a maximum of 256 colors across all frames(*). When you are in indexed-color format, there are several restrictions:

• Many filters and tools won't work (and will be grayed out in the menus)
  
• Layer opacity is binary (fully opaque, fully transparent, there is no partial opacity)
  
• All the colors you add are mapped to the closest existing color in the color map, so your blue may well turn red if there is no blue in the initial GIF... and for the same reason, the colors of whatever you paste in are also mapped to colors in the color map.
  

Hi all, I'm new to the forum and new to Gimp.

I'm a blacksmith and fabricator, and what I want to do is print life size drawings of objects from images so that I can use them as templates for cutting steel etc..

So lets say I wanted to make a replica of a knife from a picture. I import the image, cut round the knife, re-orientate it and correct perspective(if necessary), re-scale it to real life dimensions, create a line drawing version and print it out. I also need to be able to print things which cover more than one page for large objects, even things which could be a metre long or more.

I had a bit of a go but quickly started to come unstuck. I was able to draw round the knife, but I couldn't make it a new layer of it's own. Also when I rotated it, the top and bottom were outside of the layer boundry and I couldn't figure out how to stop it cropping the image.

I can probably do the line drawing bit ok. Unless I need specific angles and symmetry. But I'll figure that out when it comes up.

If anyone can point me in the right direction that'll be awsome!

Cheers

Saw something about this in here but cannot find anything now  
I downloaded ufraw so I could work on raw photos as well as jpgs, the program has a link in it to open up in gimp but nothing happens when I click on it. Saw there was some trouble with it so I downloaded the nufraw, says it can be used as a plugin to gimp?
Where do I put it? it is a 'tar.gz' file

I have made some icons.

I have placed them on the desktop.

When I hover the house over the icons, I note a square shape around the icons, but, in a few of them, I see a larger rectangle. I have cropped all the images.

I would like them all to be uniform.

Advice please.

Hi,
Thanks for putting up this Forum.

I have the text letter O in a layer(see attached), and I filled in the center almost completely (with pencil tool), but left a little unfilled, so it would look similar to a round head with a smile(see attached), however it looks kind of like a jagged smile.
Can you suggest a way to re-do so that the "smile" looks a little smoother (not so jagged)?
Thanks

Attached Files

Image(s)
       

I don't know if I'm missing something but there doesn't appear to be any logic or sure-fire means of getting the mouse cursor to switch to the little 'up arrow' icon which allows you to quickly change the values of brush size, opacity etc.

The other options are using the 'up and down' buttons on the slider, or to kind of drag it with the '|' icon, the latter of which is very fiddly and ineffective.

As you hover the mouse cursor over the value bar it will occasionally switch to the 'up arrow', but as I say there appears to be no rhyme or reason as to when it does this.

Am I missing something or is this normal behaviour?

Try as I may, I still cannot create circles.

I start to use the tool then hold down shift, but I still see an allipse. I see the same when holding down control!

Previous post reminded me of this. A friend from school days now lives on the west coast of USA and has a very nice boat. Also bought a equally nice boat on the east coast USA so that he can sail around the Virgin Islands.

Had to remind him that I kept my boat in the back yard.