PDF tool

PDF Merger

Combine multiple PDFs into one file, no crumbs.

Merge two or more PDFs into a single document and set their order before export. Processing runs in your browser.

How to use PDF Merger

  1. Drop it like it's hot — two or more PDFs into the zone 📄✨
  2. Drag the files to set the merge order.
  3. Hit Merge and download the combined PDF. +1000 aura ✨

What this tool does

Multi-file merge

Add multiple PDFs; practical limits depend on available browser memory.

Reorder before merging

Drag files up or down to run the page order exactly how you want. You're the main character here.

Private by design

Files are processed locally, never uploaded. Locked in 🔒

Common uses

  • Combine reports, forms, or chapters into one PDF.
  • Reorder source documents before joining them.

Processing and privacy

Browser processing: PDF files are read and merged locally with pdf-lib.

Limitations to know

  • Encrypted or malformed PDFs may need to be unlocked or repaired first.
  • Practical file size is limited by device memory.
  • Existing page sizes are retained rather than normalized.

Keep original files where applicable, inspect the result, and do not rely on an automated output without checking that it fits your intended use.

Practical tips

  • Merging keeps each doc's original page sizes — mixed sizes are totally fine, no L.

Frequently asked questions

Are my PDFs uploaded to a server?

Nope, be so fr. Merging goes down entirely in your browser. Your docs stay with you.

Is there a file size limit?

Only your device memory. Absolutely massive PDFs (hundreds of MB) might make a low-end device go a little delulu, but otherwise you're golden.

Related tools and guidance