合併PDF
按你的順序將多個PDF合併為一個。
將檔案拖到此處
或
支援格式: PDF
免費 · 無需註冊 · 大多數工具檔案不離開您的裝置
此工具完全在您的瀏覽器中執行——檔案不會被上傳。
使用方法
1
上傳
2
設定
3
下載
常見問題
Is 合併PDF free?
Yes. 合併PDF is completely free with no sign-up, no watermark and no daily limit. There is no paid tier — every tool on iAdorePDF is free to use as often as you like.
Is 合併PDF safe and private?
Yes. 合併PDF runs entirely inside your browser, so your file is never uploaded to any server. Nothing leaves your device, which makes it safe for confidential documents.
Do I need to install any software?
No. 合併PDF works in any modern browser — Chrome, Safari, Firefox or Edge. There is nothing to download and no account to create.
Does 合併PDF work on a phone?
Yes. 合併PDF is built mobile-first and works on iPhone and Android exactly as it does on a computer, straight from the browser.
Can I choose the order of the merged PDFs?
Yes. After you add your files, drag the cards into any order or use the up and down arrows. The merged PDF follows exactly the order shown on screen, and you can also force every page to A4 or Letter.
How do I use 合併PDF?
Open the page, drop your file into the upload box (or tap Select file), choose your options, then press the start button. Your result downloads straight to your device.
Is there a file size limit?
There is no server limit because the work happens on your own device. The practical ceiling is your device memory; files up to about 100 MB are comfortable on most phones and much larger on a computer.