Protect sensitive PDF documents with a secure PDF API for enterprise workflows. Add password protection, disable printing, restrict copying, and apply access controls for secure document delivery, regulated workflows, and enterprise document handling.
Add passwords, disable printing, and restrict copying so only authorized users can access or interact with protected PDFs.
Use PDF permissions and password protection as part of a broader DWS platform with security, privacy, and SOC 2 Type 2 trust context for commercial evaluations.
Select a package that suits your needs according to the number of credits you wish to spend. Each API tool and action has a specific credit cost.
This example protects a document with a password.
Try it out in three steps
document.pdf to your project folder.result.pdf to see the output.curl -X POST https://api.nutrient.io/build \ -H "Authorization: Bearer your_api_key_here" \ -o result.pdf \ --fail \ -F document=@document.pdf \ -F instructions='{ "parts": [ { "file": "document" } ], "output": { "type": "pdf", "owner_password": "owner-password", "user_password": "user-password", "user_permissions": [ "printing", "modification", "extract", "annotations_and_forms", "fill_forms", "extract_accessibility", "assemble", "print_high_quality" ] } }'curl -X POST https://api.nutrient.io/build ^ -H "Authorization: Bearer your_api_key_here" ^ -o result.pdf ^ --fail ^ -F document=@document.pdf ^ -F instructions="{\"parts\": [{\"file\": \"document\"}], \"output\": {\"type\": \"pdf\", \"owner_password\": \"owner-password\", \"user_password\": \"user-password\", \"user_permissions\": [\"printing\", \"modification\", \"extract\", \"annotations_and_forms\", \"fill_forms\", \"extract_accessibility\", \"assemble\", \"print_high_quality\"]}}"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", "document.pdf", RequestBody.create( MediaType.parse("application/pdf"), new File("document.pdf") ) ) .addFormDataPart( "instructions", new JSONObject() .put("parts", new JSONArray() .put(new JSONObject() .put("file", "document") ) ) .put("output", new JSONObject() .put("type", "pdf") .put("owner_password", "owner-password") .put("user_password", "user-password") .put("user_permissions", new JSONArray() .put("printing") .put("modification") .put("extract") .put("annotations_and_forms") .put("fill_forms") .put("extract_accessibility") .put("assemble") .put("print_high_quality") ) ).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", "document.pdf") .AddParameter("instructions", new JsonObject { ["parts"] = new JsonArray { new JsonObject { ["file"] = "document" } }, ["output"] = new JsonObject { ["type"] = "pdf", ["owner_password"] = "owner-password", ["user_password"] = "user-password", ["user_permissions"] = new JsonArray { "printing", "modification", "extract", "annotations_and_forms", "fill_forms", "extract_accessibility", "assemble", "print_high_quality" } } }.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" } ], output: { type: "pdf", owner_password: "owner-password", user_password: "user-password", user_permissions: [ "printing", "modification", "extract", "annotations_and_forms", "fill_forms", "extract_accessibility", "assemble", "print_high_quality" ] }}))formData.append('document', fs.createReadStream('document.pdf'))
;(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 requestsimport json
response = requests.request( 'POST', 'https://api.nutrient.io/build', headers = { 'Authorization': 'Bearer your_api_key_here' }, files = { 'document': open('document.pdf', 'rb') }, data = { 'instructions': json.dumps({ 'parts': [ { 'file': 'document' } ], 'output': { 'type': 'pdf', 'owner_password': 'owner-password', 'user_password': 'user-password', 'user_permissions': [ 'printing', 'modification', 'extract', 'annotations_and_forms', 'fill_forms', 'extract_accessibility', 'assemble', 'print_high_quality' ] } }) }, 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" } ], "output": { "type": "pdf", "owner_password": "owner-password", "user_password": "user-password", "user_permissions": [ "printing", "modification", "extract", "annotations_and_forms", "fill_forms", "extract_accessibility", "assemble", "print_high_quality" ] } }', 'document' => new CURLFILE('document.pdf') ), 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/1.1Content-Type: multipart/form-data; boundary=--customboundaryAuthorization: Bearer your_api_key_here
--customboundaryContent-Disposition: form-data; name="instructions"Content-Type: application/json
{ "parts": [ { "file": "document" } ], "output": { "type": "pdf", "owner_password": "owner-password", "user_password": "user-password", "user_permissions": [ "printing", "modification", "extract", "annotations_and_forms", "fill_forms", "extract_accessibility", "assemble", "print_high_quality" ] }}--customboundaryContent-Disposition: form-data; name="document"; filename="document.pdf"Content-Type: application/pdf
(document data)--customboundary--Use the PDF security guide for passwords and permissions, then continue to Processor pricing and DWS security documentation for broader enterprise evaluation.
Most common next steps
Use the following:
Get started:
Platform resources:
No input or resulting documents are stored on our infrastructure. All files are deleted as soon as a request finishes. Alternatively, check out our self-hosted product.
All communication between your application and Nutrient is done via HTTPS to ensure your data is encrypted when it’s sent to us.
All payments are handled by Paddle. Nutrient DWS Processor API never has direct access to any of your payment data.
Create an account to get your DWS Processor API key and start making API calls.