Simone
1.首先打开电脑上的Pr,然后将需要裁剪视频画面大小的视频拖入软件的时间轴（也就是工作区）。/iknow-pic.cdn.bcebos.com/2934349b033b5bb54e9ad73b3bd3d539b700bca2"target="_blank">/iknow-pic.cdn.bcebos.com/2934349b033b5bb54e9ad73b3bd3d539b700bca2?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto"wqktp="https://iknow-pic.cdn.bcebos.com/2934349b033b5bb54e9ad73b3bd3d539b700bca2"/>2.在视频的预览页面顶部选择【效果】这个选项，展开视频效果设置。/iknow-pic.cdn.bcebos.com/4e4a20a4462309f7fc525bd77f0e0cf3d7cad632"target="_blank">/iknow-pic.cdn.bcebos.com/4e4a20a4462309f7fc525bd77f0e0cf3d7cad632?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto"wqktp="https://iknow-pic.cdn.bcebos.com/4e4a20a4462309f7fc525bd77f0e0cf3d7cad632"/>3.在右侧展开的效果功能信散选项中，依次点击【视频效果】->【变换】->【裁剪】启用pr的裁剪工具。/iknow-pic.cdn.bcebos.com/b3119313b07eca80fd0cce229c2397dda04483ee"target="_blank">/iknow-pic.cdn.bcebos.com/b3119313b07eca80fd0cce229c2397dda04483ee?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto"键晌wqktp="https://iknow-pic.cdn.bcebos.com/b3119313b07eca80fd0cce229c2397dda04483ee"/>4.在左侧的调整面板根据个人需要设置视频画面需要裁剪的比例大小。/iknow-pic.cdn.bcebos.com/503d269759ee3d6d34e7740e4e166d224e4aded6"target="_blank">/iknow-pic.cdn.bcebos.com/503d269759ee3d6d34e7740e4e166d224e4aded6?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto"wqktp="https://iknow-pic.cdn.bcebos.com/503d269759ee3d6d34e7740e4e166d224e4aded6"/>5.在裁剪过程中，预览画面会实时根据设置进行稿坦锋变化，耐心对左侧的裁剪效果面板效果进行设置，直到画面效果达到自己的需求即可导出裁剪后的视频。/iknow-pic.cdn.bcebos.com/8d5494eef01f3a29ee26260b9425bc315d607c0d"target="_blank">/iknow-pic.cdn.bcebos.com/8d5494eef01f3a29ee26260b9425bc315d607c0d?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto"wqktp="https://iknow-pic.cdn.bcebos.com/8d5494eef01f3a29ee26260b9425bc315d607c0d"/>
