在线免费旋转PDF文件

在您的浏览器中将PDF页面旋转90、180或270度。可以旋转所有页面或选择的范围,然后下载。免费,无需上传,无需注册。

在您的浏览器中旋转 PDF 页面。选择一个角度和页面范围,然后下载修正后的文件。

在线免费旋转PDF文件

将侧向或倒置的页面调整为正确方向。旋转整个PDF或仅旋转您选择的页面,然后下载。

将您的PDF文件拖放到此处

或点击浏览

支持单个PDF文件
90/180/270Quarter turns
All or rangeChoose the pages
CumulativeNudge step by step

旋转器的工作原理

按四分之一圈翻页,可以翻转所有页面或仅翻转错误的页面。

旋转控制

任何四分之一转动

向右旋转90度、180度或向左旋转90度,或输入自定义的90的倍数以进行更大的旋转。

全部或选定

将整个文档转换,或仅列出以范围形式出现横向的页面。

累计旋转

旋转会增加页面当前的角度,因此您可以逐步调整页面。

输出

无损

只有方向标志会改变,因此文本和图像不会被重新压缩。

其他未触及

当您旋转选定页面时,其他每一页都保持其原始方向。

浏览器端

旋转功能在您的设备上运行,使用 pdf-lib,因此文件不会上传到服务器。

Turning PDF Pages the Right Way Up

  1. Open your PDF

    Drop the file onto the upload area or click to browse. The page count appears so you know the range you can target if only some pages are turned the wrong way.

  2. Pick an angle and which pages

    Choose 90 degrees right, 180 degrees, or 90 degrees left, or type a custom multiple of 90. Then rotate every page, or list just the ones that came out sideways, such as 2-4, 6.

  3. Rotate and download

    Press Rotate PDF. The chosen pages are turned and the corrected file is offered for download, with all text and images kept exactly as they were.

Which Angle to Use

PDF rotation works in quarter turns, so every angle is a multiple of 90. Match the turn to how the page is currently wrong.

The page isChooseResult
Lying on its right side90 degrees left (270)Stands upright, text reading normally
Lying on its left side90 degrees right (90)Stands upright, text reading normally
Upside down180 degreesFlipped to read the right way up
Turned by a set amountCustom multiple of 90Adds to the page's current rotation, so you can nudge it round

Where Rotating Pages Helps

Sideways scans

Scanners often save landscape sheets turned 90 degrees. Rotate just those pages upright without touching the rest of the document.

Mixed orientation

A report with a few landscape tables among portrait pages is quick to fix: list only the misaligned page numbers and turn them.

Upside-down pages

When a sheet was fed into a scanner the wrong way, a single 180 degree turn sets it right on screen and in print.

Keeping quality

Rotating only changes each page's orientation flag, so fonts and images are never recompressed and the file stays sharp.

Why Rotation Is Instant and Lossless

Flag, not pixels
The tool changes the page's rotation value instead of redrawing it, so text and images are never touched.
No re-rendering
The result is exactly as sharp as the original, and the file size barely changes.
Turns are cumulative
Rotating a page that is already turned adds to its angle, so you can correct it in small steps.
Selected only
When you rotate a range, every other page keeps its original orientation.

工作原理

旋转 PDF 文件工具直接在您的浏览器中操作。用户可以选择所有页面或特定范围的页面进行旋转。该工具接受 PDF 格式的输入,并允许以 90、180 或 270 度的增量进行旋转。一旦选择了所需的旋转,工具会实时处理 PDF,应用指定的转换。用户可以在无需文件上传或外部服务器的情况下下载修改后的 PDF。

处理利用 JavaScript 库在客户端操作 PDF 结构。这确保所有更改都在浏览器环境中即时且安全地进行。旋转后,输出是一个包含调整页面的新 PDF 文件。该工具保持 PDF 的原始质量和布局,确保文本和图像在旋转过程中保持完整。

使用时机

旋转 PDF 文件工具在您收到方向不正确的文档时非常有用。例如,扫描文档或报告可能以错误的方向保存。该工具为在打印或共享之前调整方向提供了快速解决方案。它特别适合需要准备演示或正式文档的用户,在这些情况下页面布局至关重要。

当您想提高可读性或改善 PDF 的呈现时,请使用此工具。例如,如果您有一个多页报告,其中一些页面是侧向的,旋转它们可以创建一个连贯的阅读体验。请注意所选范围;在许多页面中旋转单个页面可能会打乱文档的流畅性。在下载之前始终仔细检查最终输出。