feat: cover pdfeasy option in runner setter

Author: Novout

demo/public/test.png

@@ -8,10 +8,11 @@ app.innerHTML = `
 `
 
 pdfeasy.new({
+  cover: 'data:image/png;base64,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',
   document: {
     margins: {
-      top: 40,
-      bottom: 40,
+      top: 80,
+      bottom: 80,
       left: 80,
       right: 80
     }

demo/src/main.ts

@@ -2,6 +2,17 @@ import { Content, ContentText, ContentImage, PDFEasyDefaults } from '../types'
 import { getCorrectFontFamily } from './transform'
 import { getImageRaw, SvgToPNG } from '../content/image'
 
+export const resolveCover = async (app: PDFKit.PDFDocument, based: string) => {
+  const { raw } = await getImageRaw(based)
+
+  app.image(raw, 0, 0, {
+    height: app.page.height,
+    width: app.page.width,
+  })
+
+  app.flushPages()
+}
+
 export const resolveContent = async (
   app: PDFKit.PDFDocument,
   defaults: PDFEasyDefaults,

src/pipe/factory.ts

@@ -2,7 +2,7 @@ import PDFDocument from 'pdfkit'
 import blobStream from 'blob-stream'
 import mitt from 'mitt'
 import { saveAs } from 'file-saver'
-import { resolveContent } from '../pipe/factory'
+import { resolveContent, resolveCover } from '../pipe/factory'
 import { pdfDefaults } from '../utils/defines'
 import {
   Content,
@@ -104,6 +104,10 @@ export default class {
    * @returns Promise<void>
    */
   private pipeline = async () => {
+    if (this.options?.cover) {
+      await resolveCover(this.pdfkit as typeof PDFDocument, this.options.cover)
+    }
+
     for (const content of this.contents) {
       await runPluginBackground(this)
 
@@ -156,6 +160,7 @@ export default class {
   public new = (options?: RunnerOptions) => {
     this.reset()
     this.options = {
+      cover: options?.cover,
       exports: options?.exports,
       advanced: {
         fontsPurge:

src/runner/pdfeasy.ts

@@ -192,6 +192,11 @@ export interface RunnerOptionsExports {
 }
 
 export interface RunnerOptions {
+  /**
+   * Cover URL or Base64
+   */
+  cover?: string
+
   /**
    * Advanced PDF Easy Options
    *