Image editors (also known as photo editors) allow you to create and modify graphics and photographic images. This includes tasks such as painting and drawing, color correction, photo enhancement, creating special effects, converting images, and adding text to graphics. Your image editor will probably be your most frequently used tool for working with graphics so it should be flexible and intuitive. Many software programs are available for enhancing and otherwise working with bitmap images, but unless they can perform all of the tasks above sufficiently, they should only be considered as companion tools to your primary photo editing application.

The display resolution of a digital television or computer display typically refers to the number of distinct pixels in each dimension that can be displayed. Some commentators also use this term to indicate a range of input formats that the display's input electronics will accept and often include formats greater than the screen's native grid size even though they have to be down-scaled to match the screen's parameters. An example of pixel shape affecting "resolution" or perceived sharpness is displaying more information in a smaller area using a higher resolution, which makes the image much clearer. However, newer LCD displays and such are fixed at a certain resolution; making the resolution lower on these kinds of screens will greatly decrease sharpness, as an interpolation process is used to "fix" the non-native resolution input into the displays native resolution output.

While it might be neater to store digital images, you aren't done with organizing and storing images. There are various options for data storage, and no one answer is right for everyone. In fact, there may be more than one right answer for you. However you store your images, be sure to file them so they are easy to organize and find. Choose one system and stick to it. Create named folders on your hard drive or name compact discs, for instance, to store them. ALWAYS make copies of your images, leaving the originals intact, before you edit, alter or crop them. The hard drive is where most people store the bulk of their images. This is a good option, but isn't without problems. For instance, if you have all of your images on your hard drive and it crashes, you've lost all your precious images. A horrible thought, of course! Do use the hard drive, but also back up all images right as you transfer them to the hard drive by any secondary method. The compact disc is a wonderful way to store images; it can be rather efficient and it is relatively easy to set up. The downside is you need a CD-burner to use this method. If you do have one, simply keep a running backup of all your images. Be sure to pay special attention to organization so you don't wind up popping ten CDs in just to hunt down one photo. When you burn a new CD of images, write down the dates and descriptions of the photos on the CD. Or name the CDs and keep a notebook that lists what is on each CD. Better yet, make an index print of images on each CD and write the name on top of the print.

When it comes time to touch up your digital photos, you will need a photo-editing program. You can choose a low-priced, consumer-oriented program or a high-priced program targeted at professional photographers. For most of us, the consumer-oriented programs are more than adequate-and, in fact, you might have received one with your computer or digital camera. Depending on what you do with your photos, you may not need a lot of the bells and whistles when it comes to photo editing. Explore your options and find out which software is best for you. If you're a beginner, you may be happy with a package that offers only the basics, like cropping and red-eye removal. Or, perhaps you need something with more creative effects. For the ultimate in photo-editing, you may consider investing in a professional editing suite. Be warned though, software like that is going to cost you. Adobe Photoshop, for instance, has become the industry standard among professional photographers everywhere. It allows functions like level adjustment, advanced compositing, and RAW image processing.

Pictures are measured in size by how many pixels they contain. When you've taken a picture that is simply too large, you can resize the image by changing the number of pixels it contains. To make an image smaller you must reduce the pixels, and vice versa. Sometimes pictures look better smaller than the original size. Rarely do pictures look better larger, because resizing an image to make it bigger usually makes it blurry. To see what the best size for an image is, you will have to experiment until you find one that you believe looks best.

Often times images are posted on the web and resized with HTML code. This leads to an image full of jagged edges. By resizing your image in an image editing program, such as Adobe Photoshop, you can utilize smoothing algorithms that will make an image look much smoother. Additionally, resizing the image will reduce the file size, allowing a web page to load faster than usual. When you resize an image, you are resampling an image. In other words, your program is taking all of the image data and redrawing the pixels so that the image is the desired size. However, when you ask the application to increase the size of the image, the size of each pixel is increased, which inevitably leads to degradation of the image. When you resize an image, you can also change image resolution, to keep the quality of your image.

Cropping refers to the removal of the outer parts of an image to improve framing, accentuate subject matter or change aspect ratio. In the printing, graphic design and photography industries, cropping refers to removing unwanted areas from a photographic or illustrated image. One of the most basic photo manipulation processes, it is performed in order to remove an unwanted subject or irrelevant detail from a photo, change its aspect ratio, or to improve the overall composition. It is considered one of the few editing actions permissable in modern photojournalism along with tonal balance, colour correction and sharpening.