如何获取网页的300 DPI屏幕截图

Question

好吧,愚蠢的问题,页面上的图像都是72,所以你不能有300.但是......在小册子上以尽可能高的分辨率打印的最佳方式是什么？

Answer 1

I don't think you can get a high resolution print from a generic web page keeping the layout perfectly right (so, if your objective is to illustrate how it looks on screen but with print quality, this should be a showstopper).

Even if the text and many elements are a kind of vectorial (scalable) graphic (i.e. in theory you could zoom the page so they are rendered bigger and enlarge the browser window to get an enlarged screenshot), many graphic elements ("normal" images) are raster graphic, that cannot be enlarged without ugly artifacts coming out.

此外，许多布局使用像素来表示各种元素的大小（这意味着放大和缩小可能会使布局变得一团糟）。