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How to merge PDF files

Combine multiple PDFs into one organized file, reorder pages by dragging, and download a single packet for school, work, or applications — free online.

Open Merge PDF online free

Why merge PDFs instead of zipping them

A zip of five PDFs still forces the recipient to open each file. One merged PDF is simpler to review, print, and archive — especially for applications, client deliveries, tax packets, and project handoffs.

Merging also lets you control the reading order: cover page first, then forms, then supporting documents.

Step-by-step: merge PDF files

  1. Open Merge PDF on LitePDF Pro.
  2. Upload every PDF you want to combine.
  3. Drag pages into the exact order you need.
  4. Continue / merge to build one document.
  5. Download the combined PDF and open it once to confirm the sequence.

Before and after merging

If you only need a few pages from a large file, extract or split those pages first so the merged result stays focused. If the final packet is too large for email, compress it after merging.

  • Use Split PDF or Extract pages to pull chapters before merging.
  • Use Compress PDF if the combined file exceeds email limits.
  • Use Protect PDF if the packet contains private information.