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Merge PDF files

How to merge PDF files

1. Choose the files you want to merge.

2. Reorder the files if needed.

3. Merge them into one document.

4. Merge PDFs for free.

Why merge PDFs with us?

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Combine as many PDFs as you need

Bring several PDFs together in one document instead of managing them separately. Choose the files you need, arrange their page order, and add or remove a file before merging. If you need to separate a document instead, you can split a PDF.
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Preserve original formatting

Merging joins your PDFs without changing the layout of the original pages. Fonts, images, and other page content stay as they were, so reports, forms, scans, and other documents keep their familiar appearance in the combined file.
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Keep your files private

Your files are processed so the merge can be completed and are not kept afterwards. You can combine the documents you need, save the finished PDF, and continue working with the new file once the merge is complete.
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Merge PDFs for free

You do not need an account to use the online PDF merger. Choose your files, set the order, and merge them in your browser. If file size becomes an issue afterwards, you can make the merged file smaller.

Explore more free tools

Need to do even more PDF organizing? Check out the other free features included with MobiPDF Online. 

Organize
Rotate
Split
Extract
Delete

FAQ

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  • Choose both PDFs, arrange them in the order you want, and start the merge. MobiPDF Online combines the files into one document that you can save when it is ready. You can also add or remove files before merging. For more detail, see the full walkthrough on our blog.

  • Yes. After you choose the PDFs, drag them into the order you want before you merge. This lets you decide which document comes first and how the rest follow. You can also add or remove a file at this stage, so the finished PDF contains the documents you need in the right sequence.

  • You can add multiple PDFs to the same merge. The practical limit can depend on the number and file size of the documents, so very large sets may take longer to process. If the combined PDF ends up larger than you need, you can reduce its size afterwards.

  • No. Merging combines the files into one PDF while keeping the existing pages, fonts, images, and layout as they were. It changes how the documents are grouped, not how their page content is formatted. Open the finished PDF after the merge to check that the files appear in the order you intended.

  • Yes. Open MobiPDF Online on your phone, choose the PDF files you want to combine, arrange them, and merge them into one document. You can then save the finished PDF on your device. The basic flow is the same whether you are using a phone, tablet, or computer.

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