線上旋转PDF

旋转PDF頁面。将頁面旋转90、180或270度。

上傳PDF檔案

拖放PDF檔案到此處以旋轉頁面。

開發者 API

可透過 API 呼叫

使用 PDF Tools API 自動化此 PDF 工作流程。每次成功請求消耗 1 Credit，處理失敗會自動退還。

/api/external/pdf-tools/rotate-pdf每次成功請求 1 Credit輸出：result.pdf

curl -X POST https://itextmaster.com/api/external/pdf-tools/rotate-pdf \
  -H 'x-api-key: YOUR_API_KEY' \
  -F 'file=@input.pdf;type=application/pdf' \
  -F 'options={"angle":90,"pages":"all"}' \
  --output result.pdf

關於此工具

旋转PDF将文件中的頁面旋转90、180或270度。修复方向不正确的掃描、旋转横向頁面或调整頁面方向以供查看。

统一旋转所有頁面或選擇特定頁面单独旋转。该工具保留所有内容和格式。

所有處理都在您的瀏覽器本機进行，确保您的文件保持私密。

使用方法

上傳PDF檔案
拖放您的PDF檔案或點選選擇。
選擇旋转
選擇旋转角度和要旋转的頁面。
旋转并下載
點選旋转应用更改并下載。

使用場景

修复掃描

纠正掃描文件的方向。

横向頁面

旋转横向頁面以正确查看。

混合方向

标准化混合文件中的頁面方向。

Practical guide

Why choose local processing?

Misoriented PDFs can contain contracts, invoices, identity details, or internal business information, so keeping processing in the browser reduces exposure.
The website tool is free to use with no usage limits and does not require sign-in.
Local processing also keeps iteration fast: adjust options, preview the result, and export correctly oriented pages without waiting for an upload queue.

Best files for this tool

Best for PDF files that open correctly in a modern browser and are not intentionally damaged or restricted.
Works well for everyday business, school, legal, finance, and personal documents where you need correctly oriented pages.
For very large files, close unused tabs and process one batch at a time so the browser has enough memory.

Common limitations

Encrypted or permission-restricted PDFs may need to be unlocked before processing.
Scanned pages, unusual fonts, complex layers, and damaged files can reduce accuracy or processing speed.
Browser memory and device performance matter more for local tools than for upload-based services.

Local processing vs upload-based tools

Local tools keep routine website processing on your device, while upload-based tools send files to a remote server.
Upload-based services can move heavy work off your computer, but they add transfer time and require trusting a server with your files.
Use the API when you intentionally need server-side automation; use the website when you want private manual processing.

What to do if processing fails

Try a smaller file, a shorter page range, or one file at a time if the browser runs out of memory.
If a PDF is encrypted, damaged, or restricted, unlock or repair it first and then retry the workflow.
If the output looks wrong, check whether the source file uses scans, complex transparency, form fields, or unsupported embedded objects.

API automation

Automate rotate pages with the PDF Tools API. Each successful request uses 1 Credit, and every signed-in user receives 100 free API Credits each month.

View API automation docs Create API Key

常見問題

可以对不同頁面进行不同的旋转吗？

是的，您可以对不同頁面应用不同的旋转。

旋转会影响打印品質吗？

不会，旋转保留所有内容品質。

可以按自定义角度旋转吗？

旋转限于90度增量（90、180、270）。