merge-base64

Merge multiple base64 images into a single image, for merging Buffer, Local or Jimp images please check (https://github.com/preco21/merge-img)

merge-base64 merges given base64 images into a single image in right order.This module Utilizes Jimp and is also based on (https://github.com/preco21/merge-img).

Install

$ npm install merge-base64

Usage

const mergeImages = require('merge-base64');
const base64Image = `iVBORw0KGgoAAAANSUhEUgAAABAAAAARCAIAAABbzbuTAAAAAXNSR0IArs4c6QAAAARnQU1B
  AACxjwv8YQUAAAAJcEhZcwAAEnQAABJ0Ad5mH3gAAAAZSURBVDhPY/hPIhjVQAwY1UAMGPoa/v8HALkfLP4gBjPYAAAAAElFTkSuQmCC`;
const mergedImage = await mergeImages([base64Image, base64Image]);

API

mergeImages(images[, options])

• images Array of (Base64 Images) - List of images to concat.
• options Object (optional)
  • direction Boolean - Direction of the merged image. If this value is true, the images will be merged vertically (column). Otherwise, the images will be merged horizontally (row). Default is false.
  • color Number (hex) - Default background color represented by RGBA hex value. Default is 0x00000000.
  • align String - Aligning of given images. If the images are not all the same size, images will be sorted to largest image. Possible values are start, center and end. Default is start.
  • offset Number - Offset in pixels between each image. Default is 0.
  • margin (Number | String | Object) - Margin of the result image. If Number or String is passed, it will be considered as standard css shorthand properties (e.g. '40 40 0 10'). An Object entry can have following options:
    • top Number (optional) - Margin on top side of result image. Default is 0.
    • right Number (optional) - Margin on right side of result image. Default is 0.
    • bottom Number (optional) - Margin on bottom side of result image. Default is 0.
    • left Number (optional) - Margin on left side of result image. Default is 0.

Returns a Promise that resolves to the merged Base64 Image.