Resizing image in Google Apps Script

Question

I have an image and I want to resize this.

App Script code:

var fileId = \'idImage\';
var img = DriveApp.getFileById(fileId).getBlob().;
newFile.getB         


        

Answer 1

Calling insertImage() returns an InlineImage object (or an OverGridImage if you're working with a spreadsheet.)

In either case, you could use a function like this to resize the image:

function resizeImg(img, targetHeight) {
    var height = img.getHeight();
    var width = img.getWidth();
    var factor = height / targetHeight;
    img.setHeight(height / factor);
    img.setWidth(width / factor);
};

This approach ensures the image gets scaled proportionally, to your target height (in pixels).

Example usage:

var myImg = newFile.getBody().insertImage(0, img); 
resizeImg(myImg, 60);