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How to Convert PDF to JPEG, PNG or GIF Images in Node.js
// How to convert PDF to GIF format online using Node.js
const convert = async () => {
const convertApi = groupdocs_conversion_cloud.ConvertApi.fromKeys(clientId, clientSecret);
const settings = new groupdocs_conversion_cloud.ConvertSettings();
settings.storageName = myStorage;
settings.filePath = "nodejs-testing/sample-file.pdf";
settings.format = "gif";
settings.outputPath = "nodejs-testing/sample-file.gif";
try {
// Create convert document request
const request = new groupdocs_conversion_cloud.ConvertDocumentRequest(settings);
await convertApi.convertDocument(request);
}
catch (err) {
throw err;
}
}
convert()
.then(() => {
console.log("Successfully converted PDF to GIF image file.");
})
.catch((err) => {
console.log("Error occurred while converting the PDF document:", err);
})

You can convert PDF file to JPEG, PNG or GIF images file programmatically on the cloud. In this article, you will learn how to convert PDF to JPEG, PNG or GIF file format in Node.js using REST API.

The following topics are covered in this article:

  1. PDF to Image Converter Online REST API and Node.js SDK
  2. Convert PDF to JPEG format using REST API in Node.js
  3. Convert PDF to JPEG image using Advanced Options
  4. How to Convert PDF to PNG image Online using Node.js
  5. How to Convert PDF to GIF file Online using Node.js
// How to convert PDF to JPEG format using REST API in Node.js
const convert = async () => {
const convertApi = groupdocs_conversion_cloud.ConvertApi.fromKeys(clientId, clientSecret);
const settings = new groupdocs_conversion_cloud.ConvertSettings();
settings.storageName = myStorage;
settings.filePath = "nodejs-testing/sample-file.pdf";
settings.format = "jpeg";
settings.outputPath = "nodejs-testing/sample-file.jpeg";
try {
// Create convert document request
const request = new groupdocs_conversion_cloud.ConvertDocumentRequest(settings);
await convertApi.convertDocument(request);
}
catch (err) {
throw err;
}
}
convert()
.then(() => {
console.log("Successfully converted PDF to JPEG file format.");
})
.catch((err) => {
console.log("Error occurred while converting the PDF document:", err);
})
// How to convert PDF to JPEG image using Advanced Options
const convert_options = async () => {
const convertApi = groupdocs_conversion_cloud.ConvertApi.fromKeys(clientId, clientSecret);
const settings = new groupdocs_conversion_cloud.ConvertSettings();
settings.storageName = myStorage;
settings.filePath = "nodejs-testing/sample-file.pdf";
settings.format = "jpeg";
convertOptions = new groupdocs_conversion_cloud.JpegConvertOptions()
convertOptions.grayscale = true;
convertOptions.fromPage = 1;
convertOptions.pagesCount = 1;
convertOptions.quality = 100;
convertOptions.rotateAngle = 90;
convertOptions.usePdf = false;
settings.convertOptions = convertOptions;
settings.outputPath = "nodejs-testing/sample-file.jpeg";
try {
// Create convert document request
const request = new groupdocs_conversion_cloud.ConvertDocumentRequest(settings);
await convertApi.convertDocument(request);
}
catch (err) {
throw err;
}
}
convert_options()
.then(() => {
console.log("Converted PDF to JPEG file online using advanced options.");
})
.catch((err) => {
console.log("Error occurred while converting the PDF file:", err);
})
// How to convert PDF to PNG image online using Node.js
const convert = async () => {
const convertApi = groupdocs_conversion_cloud.ConvertApi.fromKeys(clientId, clientSecret);
const settings = new groupdocs_conversion_cloud.ConvertSettings();
settings.storageName = myStorage;
settings.filePath = "nodejs-testing/sample-file.pdf";
settings.format = "png";
settings.outputPath = "nodejs-testing/sample-file.png";
try {
// Create convert document request
const request = new groupdocs_conversion_cloud.ConvertDocumentRequest(settings);
await convertApi.convertDocument(request);
}
catch (err) {
throw err;
}
}
convert()
.then(() => {
console.log("Successfully converted PDF to PNG file format.");
})
.catch((err) => {
console.log("Error occurred while converting the PDF document:", err);
})
// construct FileApi to download converted file
var fileApi = groupdocs_conversion_cloud.FileApi.fromConfig(config);
// create donwload file request
let request = new groupdocs_conversion_cloud.DownloadFileRequest("nodejs-testing/sample-file.jpeg", myStorage);
// download file and response type Stream
fileApi.downloadFile(request)
.then(function (response) {
// save file in your system directory
fs.writeFile("H:\\groupdocs-cloud-data\\sample-file.jpeg", response, "binary", function (err) { });
console.log("Expected response type is Stream: " + response.length);
})
.catch(function (error) {
console.log("Error: " + error.message);
});
// open file in IOStream from your system drive.
var resourcesFolder = 'H:\\groupdocs-cloud-data\\sample-file.pdf';
// read file
fs.readFile(resourcesFolder, (err, fileStream) => {
// construct FileApi
var fileApi = groupdocs_conversion_cloud.FileApi.fromConfig(config);
// create upload file request
var request = new groupdocs_conversion_cloud.UploadFileRequest("sample-file.pdf", fileStream, myStorage);
// upload file
fileApi.uploadFile(request)
.then(function (response) {
console.log("Expected response type is FilesUploadResult: " + response.uploaded.length);
})
.catch(function (error) {
console.log("Error: " + error.message);
});
});
# Import Node.js SDK in your node application from http://api.groupdocs.cloud
global.groupdocs_conversion_cloud = require("groupdocs-conversion-cloud");
global.fs = require("fs");
// get clientId and clientSecret from https://dashboard.groupdocs.cloud (free registration is required).
global.clientId = "xxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx";
global.clientSecret = "xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx";
global.myStorage = "test-internal-storage";
const config = new groupdocs_conversion_cloud.Configuration(clientId, clientSecret);
config.apiBaseUrl = "https://api.groupdocs.cloud";
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