PDF Merge

Merge multiple PDFs into one file, in order — processed entirely in your browser, never uploaded.

What this tool does

Select two or more PDF files (hold Ctrl/⌘ or Shift to multi-select) and the tool merges them into one downloadable PDF, in the order you picked. Pages, bookmarks, and form fields are preserved. The essential difference from typical “online PDF merger” sites: your files never leave the browser — no upload queue, no size-limit tricks, so contracts, ID scans, and financial reports are safe to process.

Typical use cases

Combining invoices, itineraries, and approval forms into a single PDF for expense claims; merging a résumé with a portfolio; stitching individually scanned pages back into a complete document; combining main text and attachments when a submission system requires one file.

Caveats

Merge order follows your selection order in the file picker (some systems sort by filename) — check it before merging; if it is wrong, prefix filenames with numbers and re-select. Password-encrypted PDFs cannot be processed; unlock them first. Merging only concatenates pages without recompressing content — if the output is large, the inputs were large.