How to change the DPI of a photo in Javascript

Today’s post is not going to get into all the reasons you might change the DPI of a photo, you already know them. Instead, we are going to dive into a rapid-fire approach to achieving this in Javascript. Let’s begin.

The process starts easily enough: importing our client. Drop this script tag into your HTML file to get this done.

<script src="https://cdn.cloudmersive.com/jsclient/cloudmersive-document-convert-client.js"></script>

Now simply call convertImageImageSetDPI, laid out below:

var CloudmersiveConvertApiClient = require('cloudmersive-convert-api-client');
var defaultClient = CloudmersiveConvertApiClient.ApiClient.instance;
// Configure API key authorization: Apikey
var Apikey = defaultClient.authentications['Apikey'];
Apikey.apiKey = 'YOUR API KEY';
// Uncomment the following line to set a prefix for the API key, e.g. "Token" (defaults to null)
//Apikey.apiKeyPrefix = 'Token';
var apiInstance = new CloudmersiveConvertApiClient.ConvertImageApi();
var dpi = 56; // Number | New DPI in pixels-per-inch, for example 300 DPI or 600 DPI
var inputFile = "/path/to/file"; // File | Input file to perform the operation on.
var callback = function(error, data, response) {
if (error) {
console.error(error);
} else {
console.log('API called successfully. Returned data: ' + data);
}
};
apiInstance.convertImageImageSetDPI(dpi, inputFile, callback);

Specify your DPI and you are all set. Now get out there and enjoy all that time you just saved!