电脑自带的画图工具就可以;直接用画图工具打开,点选择,选出你要保存的区域,右击有个剪裁,保存就可以了
1、Photoshop打开一张图片。
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2、打开后剪下照片。
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3、切割后,按下F8,面板信息将出现在右上角。单击以输入属性。
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4、输入面板属性后,您可以看到图片的像素和分辨率。
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5、或者按图像尺寸快捷方式AltCtrl键,也可以看到图像信息。
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简单的看图软件都可以,还有美图秀秀和ps
ps、fireworks、美图秀秀等软件可以裁剪图片,但是需要下载才能使用,现在网上也有很多在线图片工具,打开网站就能在线处理图片,推荐使用压缩图网站来裁剪图片,非常简单,打开网站上传图片就能裁剪图片了,可以输入数值裁剪成指定大小,也可以自由裁剪,推荐一试。
直接百度美图秀秀在线就可以