curl -X POST https://api.nutrient.io/build \ -H "Authorization: Bearer your_api_key_here" \ -o result.pdf \ --fail \ -F document=@annotations.pdf \ -F annotations.json=@annotations.json \ -F instructions='{ "parts": [ { "file": "document" } ], "actions": [ { "type": "applyInstantJson", "file": "annotations.json" } ] }' 

curl -X POST https://api.nutrient.io/build ^ -H "Authorization: Bearer your_api_key_here" ^ -o result.pdf ^ --fail ^ -F document=@annotations.pdf ^ -F annotations.json=@annotations.json ^ -F instructions="{\"parts\": [{\"file\": \"document\"}], \"actions\": [{\"type\": \"applyInstantJson\", \"file\": \"annotations.json\"}]}" 

package com.example.pspdfkit; import java.io.File; import java.io.IOException; import java.nio.file.FileSystems; import java.nio.file.Files; import java.nio.file.StandardCopyOption; import org.json.JSONArray; import org.json.JSONObject; import okhttp3.MediaType; import okhttp3.MultipartBody; import okhttp3.OkHttpClient; import okhttp3.Request; import okhttp3.RequestBody; import okhttp3.Response; public final class PspdfkitApiExample { public static void main(final String[] args) throws IOException { final RequestBody body = new MultipartBody.Builder() .setType(MultipartBody.FORM) .addFormDataPart( "document", "annotations.pdf", RequestBody.create( MediaType.parse("application/pdf"), new File("annotations.pdf") ) ) .addFormDataPart( "annotations.json", "annotations.json", RequestBody.create( MediaType.parse("application/octet-stream"), new File("annotations.json") ) ) .addFormDataPart( "instructions", new JSONObject() .put("parts", new JSONArray() .put(new JSONObject() .put("file", "document") ) ) .put("actions", new JSONArray() .put(new JSONObject() .put("type", "applyInstantJson") .put("file", "annotations.json") ) ).toString() ) .build(); final Request request = new Request.Builder() .url("https://api.nutrient.io/build") .method("POST", body) .addHeader("Authorization", "Bearer your_api_key_here") .build(); final OkHttpClient client = new OkHttpClient() .newBuilder() .build(); final Response response = client.newCall(request).execute(); if (response.isSuccessful()) { Files.copy( response.body().byteStream(), FileSystems.getDefault().getPath("result.pdf"), StandardCopyOption.REPLACE_EXISTING ); } else { // Handle the error throw new IOException(response.body().string()); } } } 

using System; using System.IO; using System.Net; using RestSharp; namespace PspdfkitApiDemo { class Program { static void Main(string[] args) { var client = new RestClient("https://api.nutrient.io/build"); var request = new RestRequest(Method.POST) .AddHeader("Authorization", "Bearer your_api_key_here") .AddFile("document", "annotations.pdf") .AddFile("annotations.json", "annotations.json") .AddParameter("instructions", new JsonObject { ["parts"] = new JsonArray { new JsonObject { ["file"] = "document" } }, ["actions"] = new JsonArray { new JsonObject { ["type"] = "applyInstantJson", ["file"] = "annotations.json" } } }.ToString()); request.AdvancedResponseWriter = (responseStream, response) => { if (response.StatusCode == HttpStatusCode.OK) { using (responseStream) { using var outputFileWriter = File.OpenWrite("result.pdf"); responseStream.CopyTo(outputFileWriter); } } else { var responseStreamReader = new StreamReader(responseStream); Console.Write(responseStreamReader.ReadToEnd()); } }; client.Execute(request); } } } 

// This code requires Node.js. Do not run this code directly in a web browser. const axios = require('axios') const FormData = require('form-data') const fs = require('fs') const formData = new FormData() formData.append('instructions', JSON.stringify({ parts: [ { file: "document" } ], actions: [ { type: "applyInstantJson", file: "annotations.json" } ] })) formData.append('document', fs.createReadStream('annotations.pdf')) formData.append('annotations.json', fs.createReadStream('annotations.json')) ;(async () => { try { const response = await axios.post('https://api.nutrient.io/build', formData, { headers: formData.getHeaders({ 'Authorization': 'Bearer your_api_key_here' }), responseType: "stream" }) response.data.pipe(fs.createWriteStream("result.pdf")) } catch (e) { const errorString = await streamToString(e.response.data) console.log(errorString) } })() function streamToString(stream) { const chunks = [] return new Promise((resolve, reject) => { stream.on("data", (chunk) => chunks.push(Buffer.from(chunk))) stream.on("error", (err) => reject(err)) stream.on("end", () => resolve(Buffer.concat(chunks).toString("utf8"))) }) } 

import requests import json response = requests.request( 'POST', 'https://api.nutrient.io/build', headers = { 'Authorization': 'Bearer your_api_key_here' }, files = { 'document': open('annotations.pdf', 'rb'), 'annotations.json': open('annotations.json', 'rb') }, data = { 'instructions': json.dumps({ 'parts': [ { 'file': 'document' } ], 'actions': [ { 'type': 'applyInstantJson', 'file': 'annotations.json' } ] }) }, stream = True ) if response.ok: with open('result.pdf', 'wb') as fd: for chunk in response.iter_content(chunk_size=8096): fd.write(chunk) else: print(response.text) exit() 

<?php $FileHandle = fopen('result.pdf', 'w+'); $curl = curl_init(); curl_setopt_array($curl, array( CURLOPT_URL => 'https://api.nutrient.io/build', CURLOPT_CUSTOMREQUEST => 'POST', CURLOPT_RETURNTRANSFER => true, CURLOPT_ENCODING => '', CURLOPT_POSTFIELDS => array( 'instructions' => '{ "parts": [ { "file": "document" } ], "actions": [ { "type": "applyInstantJson", "file": "annotations.json" } ] }', 'document' => new CURLFILE('annotations.pdf'), 'annotations.json' => new CURLFILE('annotations.json') ), CURLOPT_HTTPHEADER => array( 'Authorization: Bearer your_api_key_here' ), CURLOPT_FILE => $FileHandle, )); $response = curl_exec($curl); curl_close($curl); fclose($FileHandle); 

POST https://api.nutrient.io/build HTTP/1.1 Content-Type: multipart/form-data; boundary=--customboundary Authorization: Bearer your_api_key_here --customboundary Content-Disposition: form-data; name="instructions" Content-Type: application/json { "parts": [ { "file": "document" } ], "actions": [ { "type": "applyInstantJson", "file": "annotations.json" } ] } --customboundary Content-Disposition: form-data; name="document"; filename="annotations.pdf" Content-Type: application/pdf (document data) --customboundary Content-Disposition: form-data; name="annotations.json"; filename="annotations.json" Content-Type: application/octet-stream (annotations.json data) --customboundary--