If we talk about "paper technologies", then the image format is its size or their ratio. And in the electronic lexicon such a concept is most often associated with a certain type of recording information about the picture on the medium. If you are interested in how to change the image format, then we can say that the Photoshop program allows you to change both its size and the type of file used for recording. Let's deal with its use.
How to change the image format: a small instruction
It is worth saying that in addition to your images you only need a Photoshop program, nothing else is needed. Regardless of the task - changing the size of the picture or the type of file in which it will be stored, you must first open the editor itself, and then load the original pictures into it. You can do this in different ways: either from the window of the editor itself, or in Explorer, choosing which program to open the image with. To change the length and width of the image, you can call the “Image” item from the standard menu, where you can find the “Image size” category. Gradually, you will learn hotkey combinations that are much more convenient to work with, since in this case the speed of your activity increases. For this action you need to press Alt + Ctrl + I. Speaking about how to change the image format, it is worth noting that the “Save aspect ratio” checkbox is set by default. This is necessary so that when manipulating the picture you do not lose its original proportions, and therefore the essence of the image itself. With any change in one parameter, the second will change automatically, which is very convenient. If you do not intend to maintain the original aspect ratio, you can simply uncheck this box.
If you are thinking about how to change the image format, then you should change the values in the “width” and “length” fields to the ones you need. This window contains two pairs of such fields. One of them is intended for the case of printing the image, and the other in order to determine the size for display on the screen. When changing one of the two sections, the other will automatically change. After you click “OK”, the picture will be exactly as you intended.
If you are interested in the question of how to change the image format in Photoshop, and we are talking about the file format, then you need to do the following. Right after your image is opened in the application, you will need to open the save dialog in one of the ways. The program offers three options, and all of them you can find in the "File" menu. In each of the three dialog boxes there is a “File Type” field, where a list of recording formats available for the graphics editor is presented ; you need to choose the one that suits you.
How to change the image format: alternatives
You can use for this task any application designed to view pictures. Even the standard Paint editor is suitable for these purposes. And you can download the program from the Internet. In any case, you must open the image whose format you want to change. After that, you can enter the “File” menu and select “Save As ...”, in the window that opens, you need to enter the required file format. There are some of the most common formats that have their own characteristics. Different formats use a different compression ratio, so the amount of space occupied by the file also depends on them. If the functionality of your program allows, then next to the type of format is the button "Advanced". After clicking on it, you will have the opportunity to replace the standard filter values with your choice. Now it remains to give the file a new name or leave it the same. After clicking on “OK” the image format will be changed.