Merge multiple PDF files into one

POST

/v1/pdf/merge

Merges multiple PDF files into a single PDF document.
PDFs are merged in the order they are uploaded, with all pages from each PDF included in the final document.
Supports 2-10 PDF files, with a maximum of 50MB per file.

Request

Authorization

API Key

Add parameter in header

x-api-key

Example:

x-api-key: ********************

Body Params multipart/form-dataRequired

Responses

🟢200OK

application/pdf

Merged PDF file

Headers

🟠401Unauthorized

🟠422Unprocessable Entity

🔴500Internal Server Error

Request Example

Shell

JavaScript

Java

Swift

curl --location --request POST 'https://api.convert2pdfapi.com/v1/pdf/merge' \
--header 'x-api-key: <api-key>' \
--form 'pdfFiles="";type=application/pdf' \
--form 'fileName="combined-document"'

Response Example

422 - Not enough files

{
    "status": "error",
    "message": "At least 2 PDF files are required for merging"
}

Modified at 2025-10-21 15:53:50

Compress a PDF file

Split a PDF file