🗂️ PDF 页面整理（排序/旋转/删除）Organize PDF Pages
在一个页面里整理 PDF：拖动缩略图调整页面顺序，逐页旋转、复制或删除，也可以直接输入新顺序（如 3,1-2,6-4，支持倒序范围），一键把当前顺序倒过来，最后另存为新 PDF；页面内容原样复制，不重新压缩。Rearrange a PDF on one screen — drag thumbnails to reorder pages, rotate, duplicate or remove any page, or type a new order such as 3,1-2,6-4 (descending ranges allowed), reverse the current order in one click, then save a new PDF. Page content is copied as-is, never re-compressed.
使用说明与常见问题How-to & FAQ
「PDF 页面整理（排序/旋转/删除）」是什么？What is the Organize PDF Pages tool?
在一个页面里整理 PDF：拖动缩略图调整页面顺序，逐页旋转、复制或删除，也可以直接输入新顺序（如 3,1-2,6-4，支持倒序范围），一键把当前顺序倒过来，最后另存为新 PDF；页面内容原样复制，不重新压缩。Rearrange a PDF on one screen — drag thumbnails to reorder pages, rotate, duplicate or remove any page, or type a new order such as 3,1-2,6-4 (descending ranges allowed), reverse the current order in one click, then save a new PDF. Page content is copied as-is, never re-compressed.
如何使用「PDF 页面整理（排序/旋转/删除）」？How do I use the Organize PDF Pages tool?
在「PDF 页面整理（排序/旋转/删除）」中，选择或拖入文件，按需设置「新顺序」等选项，然后点击「按此顺序排列」、「倒序当前顺序」、「恢复原顺序」、「保存新 PDF」按钮即可。加密的 PDF 会提示输入密码（出现「打开密码」栏和「打开」按钮），输入密码并点「打开」后再继续。In the Organize PDF Pages: Choose or drop your files, set "New order", then click "Apply order", "Reverse current order", "Reset", "Save new PDF". For an encrypted PDF, the page asks for its password (a Password field and an Open button appear) — enter it, click Open, then continue.
怎么调整页面顺序？How do I reorder pages?
三种方式：直接拖动缩略图到目标位置；点缩略图下方的 ← → 逐步移动；或在“新顺序”里输入页码再点“按此顺序排列”，例如 3,1-2 表示原第 3 页放最前，然后是第 1、2 页。“倒序当前顺序”会把当前显示的顺序倒过来（先排成 3,1-2 再倒序得到 2,1,3）；想倒序原文件，请先点“恢复原顺序”。Three ways: drag a thumbnail onto the position you want; use the ← → buttons under a thumbnail to step it along; or type page numbers in New order and click Apply order — 3,1-2 puts original page 3 first, followed by pages 1 and 2. Reverse current order flips whatever order is shown now (after 3,1-2 it gives 2,1,3); click Reset first to reverse the original document.
顺序里可以写倒序或重复的页码吗？Can the order include reversed or repeated pages?
可以。6-4 表示第 6、5、4 页倒序排列；同一页写两次就会出现两次，等同于复制该页。没写到的页面会从新文件中去掉。Yes. 6-4 gives pages 6, 5, 4 in reverse; listing a page twice includes it twice, the same as duplicating it. Pages you leave out are dropped from the new file.
旋转和删除会改变原文件吗？Do rotating and removing change my original file?
不会。所有操作只在页面上预览，点“保存新 PDF”时才按当前顺序生成一个新文件（文件名加 -organized），原文件保持不变；页面内容原样复制，不重新压缩，画质不变。No. Everything is a preview until you click Save new PDF, which builds a new file (named with -organized) in the current order; your original stays untouched. Pages are copied as-is without re-compression, so quality is unchanged.
页数很多时缩略图显示不全？Thumbnails missing on long documents?
为了避免浏览器卡顿，缩略图最多生成前 400 页，后面的页面显示为空白框，但仍然可以移动、旋转、删除，并会正确保存。To keep the browser responsive, thumbnails are drawn for the first 400 pages only; later pages show an empty frame but can still be moved, rotated and removed, and are saved correctly.
加密的 PDF 可以处理吗？Can it handle password-protected PDFs?
可以。如果 PDF 需要打开密码，会提示你输入；只有权限限制（无打开密码）的文件会自动打开。输出文件不再带密码，如需加密请使用“PDF 加密”工具。Yes. If the PDF needs an open password you'll be asked for it; files with only permission restrictions open automatically. The output is not password-protected — use the Protect PDF tool if needed.
文件会上传到服务器吗？Are my files uploaded?
不会。PDF 在你的浏览器里用 pdf-lib / pdf.js 处理，文件不会离开你的设备，关闭页面后不留存任何数据。No. The PDF is processed in your browser with pdf-lib / pdf.js; files never leave your device and nothing is kept after you close the page.
「PDF 页面整理（排序/旋转/删除）」免费吗？需要注册吗？Is the Organize PDF Pages free? Do I need an account?
「PDF 页面整理（排序/旋转/删除）」完全免费，无需注册或安装，打开网页即可使用，手机和电脑都能用；输入的内容只在你的浏览器本地处理。The Organize PDF Pages is completely free with no sign-up or install and works on phones and desktops; what you enter is processed only in your browser.