🗂️ 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，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。支持拖放文件。加密的 PDF 选好后会先出现「打开密码」栏和「打开」按钮，输入密码点「打开」后再继续。In the Organize PDF Pages: Set "New order", then click "Apply order", "Reverse current order", "Reset", "Save new PDF". Drag-and-drop files is supported. For an encrypted PDF, a Password field and an Open button appear after you choose it — enter the password and click Open first.
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.