I have a million and a half for Paint; I'll post some I find particularly useful.
Avatars and signatures in Paint
For your avatar:
1. Open Microsoft Paint, of course.
2. Go into the "image" section of the menu bar. From there, click on "attributes". Make sure that "pixels" is checked off in the unit section, and "colors" is checked off in the colors section. Where is says "width", erase whatever number there currently is and put "80". Do the same for "height". Click "OK". Your screen should now shrink.
3. Click on the tool in the side menu bar that looks like a solid box. NOT THE DOTTED LINE BOX. Make sure that in the side menu bar, the empty box is selected.
4. Make a square that covers the bulk of your now tiny canvas. It's okay if you can't get all of it, it's hard to do.
5. Click on the DOTTED LINE BOX in your sidebar after you've made your square.
6. Click and drag one of the tiny turquoise buttons in the corner of the canvas. This will give you more space to work and make your tiny screen bigger.
7. Now it's time to find your image. Shrink Paint, and open the Internet. Do an online search for a good image to use, or go to a website you like to find one. Once you've found it, right click it, and click "copy". Multitask back to Paint. On your side menu bar, the dotted line rectangle should still be selected. Look to the bottom of the toolbar, and you'll see two options for this tool. One will have a tiny box with a little bit of white behind it, the other will have a tiny box with a transparent background. Click the one with the transparent background.
8. Edit < Paste your image into Paint. Drag it down so it doesn't cover up your already made border. You must be on the dotted line rectangle tool to do this!
9. Click on the white outside of your selected image. Click and drag around your border- it should now be selected. Drag it on top of your image. =O Alas! Look! You have the first makings of your avatar! Drag the border around to the part of the image you want to be in your avatar. Unselect it by clicking on something outside of your dotted-line rectangle that you have the border selected in when you have the border in the place you want it.
10. Crop around the edges of the border and... you're done! You now have a lovely 80x80 (or somewhere near to that dimension) avatar. Select your finished avatar and drag it up to the top left corner of your canvas. The top and left sides of your border should be touching, but not covered up by, the end of your canvas. Now go down to the bottom edge of your canvas, and drag the little turquoise boxes up until only your avatar is showing on the screen, with no white around it.
11. File, Save. Name it whatever you like. In the "save as type" section, either change it or leave it at 24-bit Bitmap (*.bmp; *.dib). You'll learn more about these "file formats" in the intermediate section, in a tutorial titled "Choosing Formats".
For your signature:
Follow steps 1-11 for avatars exactly, EXCEPT instead of making the attributes 80 width and 80 height, go for something like 350 width and 100 height. When you are first beginning, bigger is better so you have more space to practice.
You can add your text in anywhere from directions 10-11.
Icons and other graphics can also be made using this method, just change the sizes.
Choosing Formats to Save In
In all of the basic tutorials, I mainly told you to save your graphics as Bitmaps. Well... bitmaps, to say it in the least stink, and give you huge file sizes. So, now that you're intermediate in this program, it's time for you to learn what some of the other formats are, what they do, and the pros and cons to using them.
24 Bit-Map
This should be familiar to you, but let's go over it anyway. Some pros of using bitmap? You lose absolutely no quality, as you would in .gif or .jpeg. Cons? Bitmaps create horribly large file sizes, which make pages load really slowly for people with not-so-good computers. On a scale of one to ten on this format, I give it a six.
JPEG
Jpeg is definitely not the best format to use. However, there is one pro- Jpeg does not create huge file sizes. Yet the cons definitely outweigh that- for one, when used in Paint, Jpeg makes things horribly blurry and jpeg does not support transparency. My rating: 4/10
GIF
Gif is absolutely horrible on Paint. The quality is horrendous, even if it does have the smallest file size of all. My suggestion- don't use it! 2/10
PNG
The best of them all. Png saves with a small file size without losing any quality at all. The only con with this is that it messes up with transparency sometimes, but I doubt you have to worry about that until you move onto advanced cutouts (in the advanced tutorial section, of course). 9/10.
All in all, Png is the best to use when using Paint, Bit-Map is next best (though pretty far back), followed by Jpeg and in last- gif.
Making Scanlines in Microsoft Paint
Have you ever wondered how people with Photoshop make those scanlines that resemble what you see on your television sometimes? Well... they just press a button. In Paint, however, you can't do that, so you have to do it by hand. This is really easy, IF you are used to Paint and IF you have patience. Scanlines aren't for everyone.
1. Open Paint and select a light gray (or a very light version of one of the main colors in your image) on the color menu.
2. Get your image, of course, that you want scanlines on, and paste it into Paint. Click on the line tool.
3. This next part is really hard to describe, so I'm going to give you a step by step look with pictures.
Step one: Plain image
Step two: Being to add in your scanlines in light gray (or a different color of your choosing). Leave one clear pixel infront, in back, and to the right and left of each line you make.
(Magnified x6)
4. Continue to make your lines until you have the entire picture (or the parts you want covered in scan lines) covered.
Erasing Backgrounds in Microsoft Paint
Ah. The hardest Paint task of them. Background erasing. Does Paint have a fancy tool for this? No. Does Paint have anything to make this easy for you? No. Once again, we're doing it by hand.
1. Open your image in Microsoft Paint. Make it nice and big for your first time.
2. Magnify it times 8 (6 can work sometimes).
3. Look at your picture. Is there a definite outline that you can follow between the image itself and the background? If so, you're all set to begin erasing. If not, choose a new image for the first time.
4. I'm going to give you another picture step-by-step direction for the main part of the tutorial.
Step one: Choose the eraser tool, and put it on the smallest setting. Begin going around the outline of your image, like so:
Click for magnified example
Step two: Go around the entire image this way.
Click to see (unmagnified) example.
(I made mine greyish so it would show up better)
Step three: Erase the remaining background outside of your space.
All done!
Bordering Text in Microsoft Paint
1. Open Paint.
2. Make the text you want to spazzify.
3. Click on the paint brush tool, on the lowest setting (one pixel) in the color you want to border your text in. Magnify your text by 8. 6 is alright, too.
4. Go around the edges of your text with the color you've chosen to border with, like this:
Click for end result.
It's rather time consuming, and takes a while to master. I've been bordering text for a while now, and that still took me a good five minutes.
Other Helpful Sites
Darkest Faerie Lair
A tutorial site with lots of great tutorials for graphics, none for Paint however (though they do link you to some great download sites for better programs).
Another Microsoft Paint Tutorial Site
A wonderful site with great directions (though some of their opinions differ from my own).
Microsoft Windows Tutorials - Screenshots in MS Paint
A nice tutorial on screenshots in Paint.
Microsoft Paint photo retouch methods
Great tutorial on removing red eye from photos in Microsoft Paint.
Learn to use the tools and make pictures with MS Paint
Another nice tutorial site on making things in Paint.
Xandorra's Place
Really nice tutorial on making cartoon dolls in Paint.
Gifworks
Fabulous .gif effect maker, I used to live by it when I used Paint.
ImageMagick
My all time favorite browser program, the best I've ever found.
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Hopefully I could help at least someone with those. And please don't steal and call them your own, I worked hard on a lot of those.