PDF Merge

将多个PDF合并为一个。
Drop PDF files here or click to browse

Merge PDFs

Combine multiple PDF files into one.

Reorder

Drag to rearrange page order.

Download

Save merged PDF instantly.

Client-side

All processing in your browser. No data uploaded.

关于PDF Merge

PDF Merge lets you combine multiple PDF documents into a single, cohesive file entirely inside your browser — no server upload, no account required, and no file size limits imposed by a remote service. Whether you need to consolidate scanned contracts, stitch together report chapters, or bundle presentation slides into one shareable document, this tool handles it in seconds. Simply add the PDFs you want, reorder them by dragging the up and down arrows until the sequence is exactly right, then click Merge & Download. The resulting file preserves every page, annotation, and embedded font from the originals. Because everything runs locally via the pdf-lib library compiled to WebAssembly, your sensitive documents never leave your device, making it safe to use even for confidential legal or financial paperwork.

如何使用PDF Merge

  1. Click the drop zone or drag your PDF files into it — you can add as many files as you need.
  2. Review the list of added PDFs. Each entry shows the filename and its page count.
  3. Use the up (▲) and down (▼) arrows to reorder the files into the desired sequence.
  4. Remove any unwanted file by clicking the red × button next to it.
  5. Once the order is correct, click "Merge & Download". The merged PDF will download automatically.

常见问题

Is there a limit on how many PDFs I can merge?

There is no hard limit. You can add as many PDF files as your browser can handle in memory. For very large batches, merging in groups of 10–20 is recommended.

Are my files uploaded to a server?

No. All merging is done locally in your browser using pdf-lib. Your files never leave your device.

Will encrypted or password-protected PDFs work?

The tool attempts to load encrypted PDFs with the ignoreEncryption flag. Most owner-locked PDFs will work, but user-password-protected files may fail to load.

Does merging preserve bookmarks and links?

Page content, fonts, and images are preserved. Complex interactive elements like JavaScript actions or cross-document bookmarks may not carry over.

What browsers are supported?

Any modern browser that supports WebAssembly — Chrome, Firefox, Edge, and Safari 15+ all work.

PDF Merge 完全使用指南与免费在线工具

无需安装、完全免费、纯前端本地运行的高效 PDF Merge 工具

用于快速解决：将多个PDF合并为一个。。无需安装复杂软件，打开网页即可立即使用，极速且安全。

为什么选择 Metoolzy 的 PDF Merge？

  • 秒级即时响应: 极致性能优化，输入即可见结果。
  • 数据绝对安全: 纯浏览器本地计算，数据绝不上传服务器。
  • 完全免费使用: 无需注册登录，无任何隐形消费。

三步快速上手

  1. 打开 Metoolzy PDF Merge 工具页面。
  2. 在输入区粘贴或上传您的数据。
  3. 即时查看处理结果并点击复制或下载。

功能对比表

对比项 Metoolzy PDF Merge 普通在线工具 本地客户端软件
使用成本 永久免费 有次数限制或收费 需购买授权
隐私保护 纯本地内存运行 数据需上传云端 本地运行

适用人群与应用场景

  • 软件开发人员日常调试与数据转换
  • UI/UX 设计师资产处理
  • 运营与办公人员效率提升

常见问题解答 (FAQ)

处理的数据会被记录或保存吗？

绝不会。所有运算均在您的浏览器本地完成，没有任何数据回传。