Saving an Image
When you have finished editing a photo, you will have several options regarding the format in which you wish to save the image. The most common formats are JPEG and PNG however a variety of other formats can be used as well. Some of them are explained below.
This is the format that the edited images are saved in, by default. This specific format is different from the simpler formats in the way that it actually saves all the editing data along with the image itself. This means that the images that you have edited once can be modified again and again, with all the layers and miscellaneous modifications saved as they are.
One drawback of this file format is that is made specifically for Photoshop. This means that you can only open the image that you have saved in this format, or an image that you have received in this format, in Photoshop only. If you wish to share images with someone who doesn’t have Photoshop, you will need to either save the photo in a simpler format in the first place, or convert it before sending.
Save For Web: This is not as much a format as it is a convenience feature. Save For Web is used primarily for optimizing photos, to facilitate online uploading. The photos are compressed as much as possible while retaining much of the image quality. Save for Web also allows users to resize and adjust images which are then prepared for uploading. The photos that are uploaded using this feature are also much smaller in size, as compared to JPEG and especially RAW images.