PyroTechniques

This can be done easily, and without the need for messing with the history, by putting your border on a separate layer and then deleting the layer after you're done using the border. I've often wondered, though, if it would be feasible to do a history which you could remove and add single items to at will, but I think it would be a major undertaking due to the effects of any given action on all the actions after it. Seems like it would be one heck of a coding job, anyway.

There is a plugin for this already: http://paintdotnet.forumer.com/viewtopic.php?f=16&t=23976

Just remember that you have to save the layer you want to map it to as a separate image (PNG, I thnk, although you might want to check that), and then load it into the plugin.

This can be done with straight lines, although not with curved lines, as far as I know. With a straight line, all you need to do is draw it horizontally on its own layer, then Motion Blur at a 0 degree angle. Set the value to your taste. I suppose you could curve the line after tapering it, with Power Stretch or Bulge or some such. Or Hexagonal Distort (I think that's what it's called.)

I believe that's called the Displacement and Alpha Mask plugin. It can be found here.

I believe that what you want is subtraction, which is now done by holding down the Alt key and left-clicking.

I'm not quite sure I understand your issue fully, but you might want to try the Faking Soft Brushes and the Blur/Dodge/Burn tool tutorial by Wither... soft erasers are in there as well. The soft eraser method is a little tedious, however. You might also want to look into BoltBait's Transparency plugin, which is useful when you have slightly transparent image that you want to make opaque, or vice versa, without using layer transparency.

Could you post the image and tell us what exactly you need to do?

You downloaded Paint.NET from Microsoft? Are you sure it wasn't Microsoft Paint you were downloading, rather than Paint.NET? In order to download Paint.NET, go to this page. Scroll down, pick a mirror, and click on the large graphic. That will take you to that mirror's download site. Click the download link, tell your browser to "save file", wait for the download, and voila.

Then, after you have your selection, go to Image -> Crop to Selection.

try the waterdrop or Spilled Water tutorials. On the Spilled Water one I would advise using BoltBait's Bevel Selection plugin before deselecting.

I would also recommend you take a look at this tutorial, as it helps to familiarize you with many of the main features of Paint.NET (the tools, layers, blending modes, etc.)

Outstanding job, it looks very natural. That's a great basic idea you have there as well. I may end up doing something like that at some point.

Sorry, I don't think Paint.NET does this. Your best bet would be to do this in Inkscape or something similar, then import the image to Paint.NET.

You can easily do this using the Drop Shadow effect. Just set the color, set the offset to X=1 and Y=0, the widening and blur radii to 0, run the effect, and keep hitting ctrl+F to repeat until you are satisfied.

dudedadn: I would recommend putting the two images on top of each other, then using a transparency gradient on the upper layer, starting from the side that is in focus. PaintNetFan: Try looking at this: http://www.getpaint.net/doc/latest/en/CloneStamp.html

Try the Color Replacer or Conditional Hue/Saturation plugins.

Well, that would explain it. you need it to run PDN:

The syringe is excellent, just one question: the body of the syringe almost looks like it's angle toward the viewer, but the plunger top and the little thing below it (on the stem of the plunger) are angled the other direction. Change that, possibly? If you saved the .pdn file before flattening it should be a piece of cake.

I'm not entirely sure what you mean by 'code'. Are you referring to the filetype? As in, JPEG, PNG, GIF, etc.? Or is it something else?

Do you have the Microsoft .NET framework installed?

It's a concept skin Helio made for a competition (which he won, by the way). It's not real, though. More's the pity.

You mean this one? I know, that one looks awesome.

Do you mean just messing with the settings, or designing entirely different toolbars? Wow, PdN skins. Sounds great... if it would work.

Use a differently shaped gradient. The different types of gradient appear along the top when you have the gradient tool selected. Check out this tutorial for how to make a gloss. You might have to adapt it a little to match your image, though.