对于排版印刷，线条清晰，或甚至有锐边的照片来说，JPG也不是一种理想的媒介，因为他们经常被反锯齿而弄得模糊不清。
JPG is also not an ideal medium for typography, crisp lines, or even photographs with sharp edges, as they are often blurred or smeared out by anti-aliasing.
Blurb的版面设计工具可以让你上传照片、说明文字以及文章，然后还能示范不同的排版、封面和风格，让你在最终下订单前预览你的书看起来将会怎样。
Blurb's layout tools let you upload your photos, captions, and text, and then sample different layouts, covers and styles to see what your books will look like before you place your order.
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