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PDF-Zips

📎 合并 PDF

将多个 PDF 文件合并为一个 — 免费、快速、安全。

📎

Drop PDF file(s) here

or click to browse

如何使用 合并 PDF

1

将文件拖放到上方区域，或点击选择文件。

2

点击按钮，在浏览器中即时处理您的文件。

3

处理完成后文件将自动下载，无需注册！

Performance & Details

Merges up to 50+ PDFs in a single session. Average merge time: under 3 seconds for 10 files totaling 20 MB. Uses pdf-lib (open-source) — no server upload, no file size cap beyond browser memory.

All processing uses pdf-lib (open-source). Files stay in your browser — zero server uploads. Last verified: May 2026.

合并 PDF — 全美可用

合并 PDF - Los Angeles, CA合并 PDF - San Diego, CA合并 PDF - San Francisco, CA合并 PDF - Houston, TX合并 PDF - Dallas, TX合并 PDF - Austin, TX合并 PDF - New York City, NY合并 PDF - Buffalo, NY合并 PDF - Rochester, NY合并 PDF - Miami, FL合并 PDF - Orlando, FL合并 PDF - Tampa, FL合并 PDF - Chicago, IL合并 PDF - Aurora, IL合并 PDF - Naperville, IL合并 PDF - Philadelphia, PA合并 PDF - Pittsburgh, PA合并 PDF - Allentown, PA合并 PDF - Columbus, OH合并 PDF - Cleveland, OH合并 PDF - Cincinnati, OH合并 PDF - Atlanta, GA合并 PDF - Augusta, GA合并 PDF - Savannah, GA合并 PDF - Charlotte, NC合并 PDF - Raleigh, NC合并 PDF - Greensboro, NC合并 PDF - Detroit, MI合并 PDF - Grand Rapids, MI合并 PDF - Warren, MI
Browse all US locations →

合并 PDF — Available Across Europe

合并 PDF - Dublin, IE合并 PDF - Cork, IE合并 PDF - London, GB合并 PDF - Manchester, GB合并 PDF - Berlin, DE合并 PDF - Munich, DE合并 PDF - Amsterdam, NL合并 PDF - Rotterdam, NL合并 PDF - Paris, FR合并 PDF - Lyon, FR合并 PDF - Madrid, ES合并 PDF - Barcelona, ES合并 PDF - Rome, IT合并 PDF - Milan, IT合并 PDF - Zurich, CH合并 PDF - Geneva, CH
Browse all European cities →

Need More?

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合并 PDF — Frequently Asked Questions

How many PDFs can I merge at once?▼

There is no limit on the number of files. You can merge 2, 10, or 50+ PDFs in a single session.

Will merging reduce the quality of my PDF?▼

No. Our tool preserves the original quality, fonts, images, and formatting of every page.

Is it safe to merge confidential documents?▼

Absolutely. All processing happens locally in your browser — your files are never uploaded to any server.

Can I merge PDF files on my phone?▼

Yes! The tool works on any smartphone browser. Open the site on your iPhone or Android and merge PDFs on the go.

What if my PDFs have different page sizes?▼

No problem. Our tool handles mixed page sizes and orientations seamlessly in the merged output.