合并 PDF
将多个PDF合并为一个。拖放文件到下方。
将您的PDF拖放到此处
或 点击选择
仅限PDF — 每个文件最大 50 MB — 至少2个文件
Publicité
实际效果
典型文件的实际压缩示例
前 / 后
独立文件
1个PDF
12
最多PDF数
10s
平均时间
按模式压缩比
"我有8个独立报告，现在合并成一个清晰的PDF。谢谢！"
How to merge PDF files online for free?
Combining multiple PDFs into one document takes under 10 seconds with FileSwiftly. Drag and drop your files, reorder them as needed, then download your merged PDF. No software installation, no account required.
When to merge PDF files?
PDF merging is useful in many scenarios: assembling an annual report from separate chapters, consolidating monthly invoices into one accounting file, combining separately signed form pages, or preparing a presentation portfolio. Our online PDF merger preserves layout, internal links, bookmarks, and metadata from each source document.
Merge PDF with page reordering
Before merging, you can reorder files by drag and drop. The card order matches the final page order in the merged PDF. The free tool supports up to 12 PDF files, each up to 50 MB. FileSwiftly Pro allows merging up to 50 files at once.
Related PDF tools
To extract specific pages instead, use our Extract PDF Pages tool. To split a PDF into multiple files, see Split PDF. To reduce the size of the merged file, follow up with Compress PDF.
FAQ
How many PDFs can I merge?
Up to 12 PDFs on the free plan. FileSwiftly Pro supports up to 50 files per merge operation.
Is page order preserved?
Yes. Pages from each PDF are inserted in the exact order of the source file. You can reorder files before merging by drag and drop.
Are bookmarks and links kept?
Yes. Our merge engine preserves internal hyperlinks, bookmarks, and metadata from each source file.
需要更多？
Pro版支持一次合并50个PDF
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