订孔和订痕
活页夹打的圆孔，和订书针留下的压痕，不是同一种脏迹。
怎么选
圆孔、孔里透出黑底或桌面：选「去订孔」。订书针压出来的小凹痕或锈点：选「去订痕」。孔旁边还有一大块阴影时，孔用去订孔，阴影另看去阴影。不要指望一个按钮两样都好。
在体验页怎么试
在去污体验里一次只跑一个功能。圆孔若被填成一块白斑、把旁边的字吃掉，这页就不要用去订孔。订痕很浅、几乎不影响阅读时，可以不处理。
跑完要核对
孔或钉痕旁边的字和表格线有没有被补成空白。补上去的是周围纸色，不是原来被孔挡住的字。孔正中的字如果本来就没扫到，结果里也不会出现。
Punch holes and staple marks
A round hole from a binder and the dent left by a staple are not the same defect.
Which tool
A round hole that shows the dark background or the desk: select Holes. A small dent or rust spot from a staple: select Staple marks. If a large shadow sits next to the hole, clean the hole with Holes and the shadow with deshadow. One button will not do both well.
How to try it
On the cleanup demo, run one tool at a time. If a hole becomes a white blob that eats the nearby letters, do not use Holes on that page. A staple dent that barely affects reading can be left alone.
What to check afterward
Whether letters or rules next to the hole or dent were painted out. The fill is the surrounding paper color, not the text the hole used to cover. Text that was never scanned in the middle of the hole will not appear in the result.