Use Nutrient DWS Processor API to render PPT presentation files as WebP images. Start free with 50 monthly credits — no credit card, watermarked output — and move to production.
Render PPT slide files as WebP images for thumbnails, previews, and sharing — no Office license required.
Use REST, Postman, curl, JavaScript, Python, Java, C#, PHP, or HTTP to automate conversion inside larger document processing pipelines.
This conversion is one action in the DWS Processor API. Combine it with other conversions, OCR, extraction, and editing in a single request.
This example will convert your uploaded PPT file to a WebP image.
Try it out in three steps
document.ppt to your project folder.image.webp to see the output.curl -X POST https://api.nutrient.io/build \ -H "Authorization: Bearer your_api_key_here" \ -o image.webp \ --fail \ -F document=@document.ppt \ -F instructions='{ "parts": [ { "file": "document" } ], "output": { "type": "image", "format": "webp", "dpi": 500 } }'curl -X POST https://api.nutrient.io/build ^ -H "Authorization: Bearer your_api_key_here" ^ -o image.webp ^ --fail ^ -F document=@document.ppt ^ -F instructions="{\"parts\": [{\"file\": \"document\"}], \"output\": {\"type\": \"image\", \"format\": \"webp\", \"dpi\": 500}}"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.ppt", RequestBody.create( MediaType.parse("application/vnd.ms-powerpoint"), new File("document.ppt") ) ) .addFormDataPart( "instructions", new JSONObject() .put("parts", new JSONArray() .put(new JSONObject() .put("file", "document") ) ) .put("output", new JSONObject() .put("type", "image") .put("format", "webp") .put("dpi", 500) ).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("image.webp"), 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.ppt") .AddParameter("instructions", new JsonObject { ["parts"] = new JsonArray { new JsonObject { ["file"] = "document" } }, ["output"] = new JsonObject { ["type"] = "image", ["format"] = "webp", ["dpi"] = 500 } }.ToString());
request.AdvancedResponseWriter = (responseStream, response) => { if (response.StatusCode == HttpStatusCode.OK) { using (responseStream) { using var outputFileWriter = File.OpenWrite("image.webp"); 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: "image", format: "webp", dpi: 500 }}))formData.append('document', fs.createReadStream('document.ppt'))
;(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("image.webp")) } 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.ppt', 'rb') }, data = { 'instructions': json.dumps({ 'parts': [ { 'file': 'document' } ], 'output': { 'type': 'image', 'format': 'webp', 'dpi': 500 } }) }, stream = True)
if response.ok: with open('image.webp', 'wb') as fd: for chunk in response.iter_content(chunk_size=8096): fd.write(chunk)else: print(response.text) exit()<?php
$FileHandle = fopen('image.webp', '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": "image", "format": "webp", "dpi": 500 } }', 'document' => new CURLFILE('document.ppt') ), 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": "image", "format": "webp", "dpi": 500 }}--customboundaryContent-Disposition: form-data; name="document"; filename="document.ppt"Content-Type: application/vnd.ms-powerpoint
(document data)--customboundary--Most common next steps
Use the following:
Continue to:
It renders PPT slides as WebP images for lightweight thumbnails, previews, and sharing. It’s one action in the Nutrient DWS Processor API.
No. Conversion runs server-side with no MS Office license required. For other Office formats rendered as images, use the Office-to-image API.
Yes. You can start free with Nutrient DWS credits and run conversions without a credit card. Then move to Processor API pricing as your volume grows.
It’s a REST API you can call from any language, with examples in JavaScript, Python, Java, C#, and PHP. The fastest way to send a first request is the Postman collection.
Create an account, generate an API key, and follow the Processor API getting started guide to send your first PPT-to-WebP request.
Documents are processed over encrypted connections on SOC 2 Type 2 audited, GDPR-compliant infrastructure. See the security documentation for data handling and compliance details.
Nutrient’s infrastructure is SOC 2 Type 2 audited and GDPR-compliant. See our privacy policy and security documentation for details on data handling.
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.