PDF Merge Tool – Combine PDF Files Online Free

PDF Merge Tool

Combine multiple PDFs into one. Drag to reorder. All processing happens in your browser — nothing is uploaded.

Drop PDF files here

or click to browse

PDF files only · No size limit · All processing is local

Preparing...
Merge complete
Download merged.pdf

How to Merge PDF Files

  1. Drop your PDF files onto the area above, or click "browse" to select them.
  2. Drag the rows to reorder them — the merge order matches the list order.
  3. Click Merge PDFs and wait a moment while your browser combines the files.
  4. Download your merged PDF with one click.

Common Use Cases

  • Combining invoices, receipts, or statements into a single file
  • Merging report chapters or sections from different authors
  • Preparing a complete document package for a client or submission
  • Combining scanned pages saved as separate PDFs

Important Notes

  • 100% private — files are processed entirely in your browser and never leave your device.
  • Very large PDFs (100+ MB each) may use significant browser memory.
  • Password-protected PDFs are not supported for merging; unlock them first.
  • Free to use, no login or signup required.
  • Uses pdf-lib (MIT license) for PDF manipulation.

Similar PDF Tools

Comments & Discussion

Facing issues? Have questions? Post them here! We're happy to help!