合并 PDF 文件

立即将多个 PDF 文件合并为一个文档。免费、安全,直接在浏览器中运行。

Private by design: Your PDFs are merged locally in your browser using pdf-lib. No documents are uploaded to our servers.

如何合并 PDF 文件?

1

上传 PDF

单击上传区域或拖放多个 PDF 文件。您可以一次选择多个文档进行合并。

2

排列顺序

在列表中拖放上传的 PDF 文件,按您希望它们合并的确切顺序进行排列。

3

合并与下载

单击“合并 PDF”并等待几秒钟。即可立即下载高质量的合并 PDF 文件。

处理方式与隐私

What is 快速整合归并 PDF?

快速整合归并 PDF is a free online tool to process your files securely in your browser. Our tool ensures your data remains private while delivering fast results. No installation or registration is required.

该工具利用先进的 Web 技术完全在您的设备上运行。这意味着您的文件绝不会上传到我们的服务器。

Need to extract specific pages or break a PDF into parts? Separate documents with Split PDF

Need to extract individual pages as photos? Convert PDF to JPG images

需要保护合并文档的安全 使用密码保护 PDF

Need to edit the text or layout? 将 PDF 转换为可编辑的 Word

Have images you want to add to your PDF? Create PDF from photos or scans

主要特点

Drag & Drop Ordering

Easily rearrange the sequence of files before merging.

Zero Upload Wait Time

Merge files instantly using your computer's own processing power.

100% Privacy Guaranteed

Confidential files are never sent over the internet.

Preserves Original Quality

The merged PDF retains the exact quality of the source files.

工作原理

  1. 1

    Upload PDF Files

    Click the upload area or drag and drop multiple PDF files. You can add files from your device, cloud storage, or other sources.

  2. 2

    Reorder Pages

    After uploading, drag and drop the PDF thumbnails to arrange them in your desired order.

  3. 3

    Click Merge PDFs

    Press the "Merge PDFs" button. Processing happens instantly in your browser using JavaScript.

  4. 4

    Download the Result

    Once merged, click "Download" to save the combined PDF file to your device.

常见应用场景

  • Combining multiple scanned pages into one PDF document
  • 将不同作者的章节合并成最终书
  • 将月度财务报告合并为年度 PDF
  • Assembling multiple invoices for a single email attachment
  • Combining resumes, cover letters, and portfolio pages for job applications
  • 合并多个合同或法律文件进行备案
  • 从多个幻灯片创建单个 PDF 演示文稿

支持的格式

PDF 1.0PDF 1.1PDF 1.2PDF 1.3PDF 1.4PDF 1.5PDF 1.6PDF 1.7PDF 2.0

隐私与安全

所有 PDF 合并完全在您的浏览器中使用 JavaScript 进行。您的文件永远不会上传到我们的服务器。我们无法访问您的文档内容。您的数据在您的设备上保持完全私密.

💡 实用技巧

  • 上传前对文件进行排序以节省重新排序时间
  • 如果 PDF 受密码保护,请先使用我们的解锁 PDF 工具
  • 对于非常大的文件,请确保您的浏览器选项卡有足够的内存(如果需要,请关闭其他选项卡)
  • After merging, use Compress PDF tools to reduce the final file size for email sharing
  • Use Chrome or Firefox for the best performance with large PDF batches

常见问题解答

关于 快速整合归并 PDF 的常见问题解答。

Upload your PDF files using the uploader above, drag to reorder them if needed, then click "Merge PDFs". The combined file downloads instantly — no signup required.

没有硬性限制。您可以在设备内存允许的情况下合并尽可能多的 PDF。大多数现代设备都可以轻松地同时处理数十个 PDF 文件.

No. Merge PDF uses client-side JavaScript to process files entirely in your browser. Your files never leave your device, ensuring complete privacy.

No. The merge operation combines PDF pages without re-rendering or re-encoding them, so the original quality, fonts, and formatting are fully preserved.

是的!上传后,您可以在合并之前拖放 PDF 缩略图以重新排列顺序

由于处理发生在您的浏览器中,因此实际限制是您的设备 RAM。通常,高达数百兆字节的文件都可以正常工作.

是的。该工具具有完全响应能力,可通过 Chrome、Safari 或任何现代移动浏览器在 iOS 和 Android 设备上运行.

Use our dedicated Split PDF tool to extract specific page ranges or break down a multi-page PDF into individual documents.