Lots of people aren't in the position to buy or download expensive photo-editing software. One excellent PhotoShop alternative is Pixlr, an online image editor. To use Pixlr, follow these tips and techniques. Lots of people aren't in the position to buy or download expensive photo-editing software. One excellent PhotoShop alternative is Pixlr, an online image editor. To use Pixlr, follow these tips and techniques. , which displays a miniature version of your image, in its default position at the upper right-hand area of the image screen. Use the Navigator panel to zoom in and out and find your way around the photo. Click on the sliding bar and slide it to the left to zoom out or the right to zoom in. You can also manually enter a zoom ratio (ex. 50%, 100%) in the percentage box. If you’re deeply zoomed into a photo and having trouble navigating, click the box inside the Navigator panel, which shows you where in the image you currently are, and drag it around until you’re where you want to be. in the middle of the right-hand side of the image screen. Use the Layers panel to make, select, edit, and rearrange layers of adjustments to your original image. Many of the changes you make to your photo (including adding text, apply filters, and pasting other images) will automatically appear as new, individual layers. In addition to keeping your original image as intact as possible, this also grants you a high degree of control over the changes you make by allowing you to modify only one thing at a time. Select a layer you want to work with and modify it by reducing the opacity from 100%, clicking the up and down arrows to move it over or under another layer, changing how it blends with the other layers by choosing another option from the drop-down list next to “Normal,” throwing it away by hitting the trash can button, etc. Make sure you’re working on the correct layer while editing your image or your changes may not have any effect / have an undesired effect. : If you painstakingly select a certain part of your image only to realize that you’re working on the wrong layer (i.e. one that doesn’t actually contain the pixels you’ve selected), simply click on the correct layer. The selection will not disappear. : To be able to modify your “Background” layer (i.e. the very first layer made – often your original image), which is locked by default (see the padlock image to the right of the layer name), double-click it and give it a new name. This will unlock it, allowing you to edit it directly. at the bottom right-hand side of the image screen. This shows you a list of all changes you’ve made to your image. To navigate these edits, simply click on the one you’re interested in. Although you can go back and forth freely between these edits, note that going back to a previous edit and then on the left-hand side of the image screen. It contains buttons for many of the editing tools you will be working with. If you aren’t sure where to begin, hold your cursor over a button for a few seconds and the name will appear. See below for more information on individual tools. : Whenever you select a tool, look at the options that appear at the top of the screen just beneath the toolbar. These options will allow you to modify things such as brush size, style, opacity percentage, blending mode, and many more. – Click the button, then click and drag your screen to make selections freehand. To complete the selection, close the loop by dragging all the way back to your starting point. – Click the button, then click your screen to select swaths of color that match the color you clicked on. Check Contiguous to only select pixels that touch, uncheck , then move the cursor over the area where you want the cloned image to be and click and drag, the area around your source will then appear wherever you click and drag. This is a very useful tool for covering imperfections (ex. cloning a smooth area of skin over a blemished area). – Click the button, then click and drag your image to apply a color gradient to that portion of the image. The color(s) of the gradient come from the two color patches in your panel (usually white and black as the defaults). Change the color patches to change the color(s) used in the gradient. You can also modify the type of gradient by changing the options at the top of the screen. – Click the button, then click a color you like in your image, that color will now be the mail color in you color patches. To select a picked color as the alternate (i.e. background) color in your color patches, hold SHIFT while clicking. How do I magnetic lasso a part of Image A onto Image B? I can't find the magnetic lasso tool, a tool from Photo and Gimpshop. Source.