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合併 PDF 檔案

整理

將多個 PDF 合併為一個。免費、私密、在您的瀏覽器中。

將 PDF 拖曳到此處

處理 ≤ 50.0 MB (新增更多)

關於此工具

將多個 PDF 合併為一個。免費、私密、在您的瀏覽器中。

架構層面的隱私保護

所有處理都在您的瀏覽器中進行。您的 PDF 永遠不會上傳到我們的伺服器。無需帳戶,無使用限制。

工作原理

  1. 1選擇 PDF — 永遠不離開你的裝置
  2. 2按需配置工具
  3. 3結果儲存到下載

Frequently asked questions

Is this PDF merger free?

Yes, completely free with no usage limits, no account required.

Will my PDFs be uploaded to a server?

No. All processing happens in your browser. Your PDFs never leave your device.

How many PDFs can I merge at once?

Up to 20 PDFs per operation, with a total size limit of 50MB on web. For larger batches, install Reader Desktop.

Does it work offline?

Yes. After your first visit, Reader works completely offline as an installable PWA.

Is the output a valid PDF/A?

The merged PDF is a standard PDF 1.7. For PDF/A export, use the dedicated PDF/A tool (coming in next sprint).