How In-Browser PDF Merging Works
Traditional PDF merging services upload your sensitive documents to remote cloud servers to process and return a stitched file. Our tool operates entirely inside your local browser memory using pdf-lib WebAssembly and JavaScript binary manipulation routines. Your documents, contracts, and personal records never leave your device.
Key Benefits of Client-Side PDF Processing
- 100% Data Confidentiality: Zero cloud uploads mean confidential invoices, financial statements, and personal contracts remain strictly private on your computer.
- Instant Rearrangement: Drag and drop or move individual document cards to reorder pages and files in real time before triggering the merge.
- Memory Guardrails: Built-in safety limits (up to 20 files or 50MB per batch) ensure mobile tabs and low-memory devices operate smoothly without crashing.
Frequently Asked Questions
- 我的 PDF 文件会被上传到第三方服务器吗？
- 绝对不会。所有文档解析、页面提取与合并拼接完全基于 pdf-lib 在您浏览器的本地内存中运行，绝不经过任何网络传输。
- 单次最多支持合并多少文件和多大体积？
- 为了保证移动设备与低内存电脑不崩溃，硬性限制单次最多 20 个文件且总大小不超过 50MB。
- 合并前是否可以调整文档顺序？
- 可以。每个文件卡片均提供“上移”与“下移”箭头按钮，您可以随意排列合并顺序。