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Merge PDF

Combine multiple PDF files in the exact order you choose without uploading them to a server.

Processed in your browserFiles stay on your device.No sign-up requiredStart using the tool immediately.

Your files are processed in your browser and are not uploaded to our servers.

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View all PDF tools
Split PDFExtract selected pages into one document or separate every page into individual PDF files.Extract PDF PagesChoose exactly which PDF pages to save in a new document while preserving their original order.Delete PDF PagesSelect unwanted pages visually and create a new PDF containing everything else.Reorder PDF PagesDrag page previews into the order you want and save a rearranged PDF without uploading it.

How it works

  1. 1Add PDF filesChoose two or more valid PDF documents from your device.
  2. 2Arrange the orderDrag files into the order in which their pages should appear.
  3. 3Merge and downloadEvery page is copied into one PDF while preserving its original dimensions.

Why use OneTools

  • Order controlReorder or remove individual source files before merging.
  • Preserved pagesAll pages and their original page dimensions are copied.
  • Browser processingThe merge operation runs locally in your browser.

Frequently asked questions

Are my PDFs uploaded?

No. This tool processes supported PDFs locally in your browser.

Does merging change page sizes?

No. Copied pages retain their original PDF dimensions.

Can I reorder files?

Yes. Drag files in the list before merging.

Popular use cases

  • Combine reports into one document
  • Join scanned PDF sections
  • Assemble application documents
  • Merge invoices by date

Related tools

View all PDF tools
Split PDFExtract selected pages into one document or separate every page into individual PDF files.Extract PDF PagesChoose exactly which PDF pages to save in a new document while preserving their original order.Delete PDF PagesSelect unwanted pages visually and create a new PDF containing everything else.Reorder PDF PagesDrag page previews into the order you want and save a rearranged PDF without uploading it.