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PDF Merge

Merge multiple PDF files into a single document. Drag and drop to reorder files.

Drop PDF files here or click to select

Select multiple PDF files to merge them into one document

Maximum 20 files • 100MB per file • Password-protected PDFs not supported

Files are processed securely and not stored on our servers

Merging PDFs is the most common file-shuffling task in any office. You need to combine a signed contract with the original document, bundle five expense receipts into one attachment, or stitch chapters of a draft into a single review-ready file. The ToolEdge PDF Merge tool does exactly that — drop in any number of PDFs, reorder them by drag, and download a single combined PDF in seconds.

Behind the scenes we use PyPDF2 to splice the pages together at the byte level — meaning we never re-render the content. Vector graphics stay vector, text stays selectable, embedded fonts stay intact, and your file size stays close to the sum of the inputs (no re-compression artifacts). Encrypted PDFs are rejected at the door so you can't accidentally publish a half-decrypted file; remove the password first using our [PDF Password Remover](/tools/pdf-password-remover/), then merge.

Common use cases

  • Combining a signed contract addendum with the original agreement before filing.
  • Bundling expense receipts for one trip into a single PDF the finance team can attach to the reimbursement form.
  • Stitching multiple chapter drafts back into a complete manuscript for review.
  • Merging scanned pages with a born-digital cover sheet so the whole document downloads as one file.
  • Joining slide-deck exports from three contributors into a single conference handout.

Frequently asked questions

No — we splice at the byte level using PyPDF2, which copies page objects without re-rendering them. Vector graphics stay vector, text stays selectable, embedded fonts stay embedded, image resolution stays the same. The output file size is approximately the sum of your inputs (plus a tiny ~1 KB overhead for the new PDF directory). If you need a smaller file *after* merging, run the result through a PDF compressor.

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