Pdf Merge API

Network tool

POST https://api.findutils.com/api/tools/pdf-merge/execute

Combine several PDFs into one, in the order given. Each input is a base64-encoded PDF and the result is a base64-encoded PDF. Pages are copied as they are — nothing is re-rendered, re-encoded or watermarked. An encrypted PDF must be unlocked first.

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Request body

application/json

pdfs

array required

Base64-encoded PDFs, in the order they should appear. At least two.

Example arguments

Verified

{
  "pdfs": [
    "JVBERi0xLjcK",
    "JVBERi0xLjcK"
  ]
}

curl -X POST https://api.findutils.com/api/tools/pdf-merge/execute \
  -H "Content-Type: application/json" \
  -d '{
    "pdfs": [
      "JVBERi0xLjcK",
      "JVBERi0xLjcK"
    ]
  }'

const response = await fetch('https://api.findutils.com/api/tools/pdf-merge/execute', {
  method: 'POST',
  headers: { 'Content-Type': 'application/json' },
  body: JSON.stringify({"pdfs":["JVBERi0xLjcK","JVBERi0xLjcK"]}),
});
const data = await response.json();

import requests

response = requests.post(
    "https://api.findutils.com/api/tools/pdf-merge/execute",
    json={"pdfs":["JVBERi0xLjcK","JVBERi0xLjcK"]},
)
data = response.json()

$ch = curl_init('https://api.findutils.com/api/tools/pdf-merge/execute');
curl_setopt_array($ch, [
    CURLOPT_POST => true,
    CURLOPT_HTTPHEADER => ['Content-Type: application/json'],
    CURLOPT_POSTFIELDS => '{"pdfs":["JVBERi0xLjcK","JVBERi0xLjcK"]}',
    CURLOPT_RETURNTRANSFER => true,
]);
$data = json_decode(curl_exec($ch), true);

Also an MCP tool

Call pdf_merge from Claude, Cursor or any MCP client. Same arguments, same output.

https://mcp.findutils.com

MCP reference

Rate limit: 60 a minute, per IP
Auth: None
REST id: pdf-merge
MCP name: pdf_merge
Category: Documents
Machine-readable: openapi.json · markdown.md

This tool fetches a fixed, hard-coded public upstream, never a private host. Results depend on that upstream.

Request body

Example arguments

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