Smart PDF Merge
Drop in as many PDFs as you like — matching document sets are detected and merged automatically. No manual grouping needed.
Drag & drop PDF files here
or click to browse — supports bulk upload, up to 10,000 files
How auto-detection works
Rule 1 — Prefix code: INV_CODE.pdf + FP_CODE.pdf → merged as CODE.pdf (Invoice, then Tax Invoice). Requires an exact match — INV_CODE.pdf without a matching FP_CODE.pdf is left untouched.
Rule 2 — Suffix letter: ABC.pdf + any of ABC R.pdf / ABC P.pdf / ABC A.pdf → merged as ABC.pdf (Main, then R, P, A). The bare ABC.pdf must be present to trigger a merge — ABC R.pdf and ABC P.pdf alone, without ABC.pdf, are left untouched.
Files that don't match either pattern, or have no matching partner, are included in the ZIP unchanged.
Rule 2 — Suffix letter: ABC.pdf + any of ABC R.pdf / ABC P.pdf / ABC A.pdf → merged as ABC.pdf (Main, then R, P, A). The bare ABC.pdf must be present to trigger a merge — ABC R.pdf and ABC P.pdf alone, without ABC.pdf, are left untouched.
Files that don't match either pattern, or have no matching partner, are included in the ZIP unchanged.