合并 PDF

几秒钟内将多个 PDF 文件合并为一个文档。

闪电般快速

在浏览器本地或云端即时处理

隐私优先

处理后文件将自动删除

永久免费

无限使用,无需注册

免费在线合并 PDF 文件

将您的 PDF 文件合并为一个精简的文档。按照您想要的顺序排列它们并保存结果。无需安装软件。

1

上传 PDF

拖放或选择要合并的多个 PDF 文件。

2

重新排序

拖动缩略图以重新排列页面顺序。

3

合并并下载

点击“合并 PDF”并下载您的新文档。

为什么选择我们的 PDF 合并器?

  • 简单快捷:几秒钟内合并文档。
  • 安全:文件处理在本地进行,保护您的隐私。
  • 免费:无限制合并 PDF 文件。
  • Tools.merge-pdf.article.benefits.item4

立即合并

整理 PDF 文档的最佳方式。

How to Merge PDF Files Online for Free (2026 Guide)

The Easiest Way to Combine PDFs

Whether you're compiling a report, merging invoices, or organizing e-books, combining multiple PDF files into one is a common need.

Omibox Merge PDF makes this process effortless.

3D Illustration of PDF Files Merging
Visualizing the seamless merging of multiple PDF documents into a single file.

Why Merge PDFs?

  1. Organization: Keep related documents together.
  2. Sharing: Send one file instead of ten attachments.
  3. Printing: Print a single document sequence easily.
Desktop SoftwareOmibox Online Merger
Requires installationNo download needed
Often paid/expensive100% Free
Uses PC resourcesCloud processing

Step-by-Step Guide

1

Select Your Files

Click the "Select PDF files" button above or drag and drop your files directly into the blue box. You can select up to 50 files at once.

2

Reorder Pages

Once uploaded, you'll see thumbnails of your PDFs. Drag and drop them to rearrange the order. The top-left file will be the first page.

3

Merge and Download

Click the "Merge PDF" button. In seconds, your new combined document will be ready (automatically downloaded).

Expert Tips

  • File Naming: Rename your unified file immediately so you don't lose it.
  • Compression: If the merged file is too large, use our Compress PDF tool afterwards.

FAQ

Q: Is it secure? A: Absolutely. Your files are processed using secure encryption and are permanently deleted from our servers within 2 hours.

Q: Can I merge PDF and JPG? A: Yes! Our tool supports mixed file types. You can combine images and PDFs into a single PDF document.