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Each one of those pages could be a copy of a JPG image. PDFs, however, can contain a limitless number of pages. If, for example, you wanted to share 10 images with a friend, you would need to send them 10 separate JPGs, which might be inconvenient or even impossible, depending on the situation. While JPG images are great, they cannot contain multiple pages of images. Like JPGs, PDFs are terrific for sharing on the internet because they always look the same regardless of device. It can also have hyperlinks and even images.
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A PDF is a document file that usually contains pages of text. JPGs are terrific for sharing digital images because they can be easily compressed to keep file sizes reasonable while still looking great on a screen. JPGs are image files, meaning they contain a photograph, drawing, or some other piece of static visual information. Most people have seen a JPG (or JPEG) file before.
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