PDF page manager
Delete unwanted pages, straighten a scan, reorder them and export as a new PDF
把 PDF 拖到这里，或点击选择
一次处理一个文件；原文件只被读取，导出的是一份新 PDF（如需合并多个 PDF 请用 Merge PDF）
PDF 删页、转正、调页序的常见场景
投递前删掉无用页。简历里附带的成绩单扫描件混进了空白页、说明页、其他公司的抬头页；招投标文件里有一页是内部备注。这类「只要删掉某一页」的需求用本页最直接：在缩略图列表里点掉那几页的复选框，点「删除选中页」，导出即可。原始文件不会被改动，导出的是一份新 PDF。
把横过来的扫描件转正。用复印机或扫描仪批量扫描时，横版表格、身份证反面经常被存成旋转 90° 的页面，在阅读器里看着别扭、打印出来更是横的。选中这些页，点一下「↻ 顺时针 90°」或「↺ 逆时针 90°」即可；如果一次转多了，再点两下凑成 180°，或用「撤销上一步」退回。
调整页序。把封面挪到最前面、把附件页插到正文后面、把倒序扫描的文件整体翻正——拖动列表里的某一页到目标位置，或者选中后用「上移 / 下移 / 置顶 / 置底」精确移动；整份文件顺序反了，直接点「反转顺序」最快。按钮与拖拽两种方式同时可用，不习惯拖拽也能完成同样的操作。
关于导出结果。导出时页码会按你排好的新顺序重新编号，但列表里显示的「原第 N 页」始终是原始文件的页码，便于比对。旋转是叠加在页面原有旋转之上的（例如原本就旋转了 90° 的页，再顺时针 90° 后合计 180°），最终角度取模 360，不会出现越转越乱的情况。删除页面后如果一页都不剩，工具会禁止导出并提示，不会给你一个空文件。
Privacy note:PDF 完全在你的浏览器里解析和重排，文件不会被上传到任何服务器。合同、成绩单、银行流水、身份证扫描件这类敏感材料可以放心处理；你可以打开浏览器开发者工具的 Network 面板核验，整个过程没有任何文件上传请求。
FAQ
No. The original file is only read; every change acts on an in-memory copy and what you export is a brand-new PDF. The page stores no copies either - reloading or choosing another file clears everything.
No. Rotation only changes how a page displays - it writes the page rotation flag - and does not move pages in the file; after export the numbers run consecutively in the new order, and the original N label in the list is there to line things up against the original file.
Thumbnails load lazily - by default only the first 12 pages render, the rest show a number placeholder, and scrolling down or tapping load more thumbnails keeps rendering. If some page never gets a thumbnail, its fonts or graphics usually exceed what the browser renderer supports; the list can still select, rotate, delete and reorder it, and the export result is unaffected.
Yes. Tick the row checkboxes (or use select all / invert), then hit rotate or delete and the action applies to every selected page. The rotate button stacks: clicking clockwise twice equals a 180-degree turn.
This page handles page-level work: delete, rotate, reorder, export. It cannot edit the text or pictures inside a page, cannot merge several PDFs (use the PDF merge tool) and cannot split or extract (use the PDF split tool). A PDF with an open password cannot be parsed in the browser - remove the password in a reader first.