Combine PDFs in the order you choose
The tool joins complete PDF files into one document while preserving the order shown in the selected-file list.
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Combine PDF files locally
Merge PDF Online
Merge multiple PDF files online, reorder pages and download one watermark-free PDF. Processing stays in your browser.
Files stay on this deviceDrop PDF files here
Add two or more PDF files. You can rearrange them before merging.
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Build the merged document
Add at least two PDFs, drag them into the correct order, check the list, then merge and download the finished PDF.
Method and sources
PDF reading and writing uses the bundled MIT-licensed pdf-lib 1.17.1 library. Files are passed to the library as in-memory browser data and are not uploaded.
Referenced projectspdf-lib 1.17.1
Frequently asked questions
What can Merge PDF Online do?
The tool joins complete PDF files into one document while preserving the order shown in the selected-file list.
How do I use Merge PDF Online?
Add at least two PDFs, drag them into the correct order, check the list, then merge and download the finished PDF.
Does Merge PDF Online upload my data?
The tool runs in your browser. Your selected files, entered content and generated results are not sent to Zituo Tools.