Utility1 credit / call
POST /api/v1/tools/pdf/mergePDF Merge
Combine 2–20 PDFs into one document
Merge multiple PDF files into a single document in one API call. Upload 2–20 files, optionally reorder them with an index list, and receive the merged PDF binary. Response headers tell you total pages and per-file page counts.
How it works
Accepts multipart file uploads, merges them in order (or the specified order), and returns the combined PDF binary.
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Parameters
filesrequired2–20 PDF files. Use field name 'files' for each.· e.g.
doc1.pdf, doc2.pdf, doc3.pdforderoptionalComma-separated 0-based indices to reorder files before merging· e.g.
0,2,1Example request
Example response
Ready to use PDF Merge?
Free plan — 100 calls/month, no credit card.