Fix TypeScript error

src/converter.ts

@@ -296,23 +296,25 @@ export class Converter {
 
     let outlineData: OutlineData | undefined
 
-    ret.buffer = await this.usePuppeteer(html, async (page, { render }) => {
-      await render()
-
-      if (tpl.rendered.outline) {
-        outlineData = await page.evaluate(
-          pptrOutlinePositionResolver,
-          tpl.rendered.outline.flatMap((o) => o.headings),
-          pdfOutlineAttr
-        )
-      }
+    ret.buffer = Buffer.from(
+      await this.usePuppeteer(html, async (page, { render }) => {
+        await render()
+
+        if (tpl.rendered.outline) {
+          outlineData = await page.evaluate(
+            pptrOutlinePositionResolver,
+            tpl.rendered.outline.flatMap((o) => o.headings),
+            pdfOutlineAttr
+          )
+        }
 
-      return await page.pdf({
-        printBackground: true,
-        preferCSSPageSize: true,
-        timeout: this.puppeteerTimeout,
+        return await page.pdf({
+          printBackground: true,
+          preferCSSPageSize: true,
+          timeout: this.puppeteerTimeout,
+        })
       })
-    })
+    )
 
     // Apply PDF metadata and annotations
     const creationDate = new Date()
@@ -426,14 +428,14 @@ export class Converter {
             page,
             extension: opts.type,
           })
-          ret.buffer = await screenshot(page)
+          ret.buffer = Buffer.from(await screenshot(page))
 
           files.push(ret)
         }
       } else {
         // Title image
         const ret = file.convert(this.options.output, { extension: opts.type })
-        ret.buffer = await screenshot()
+        ret.buffer = Buffer.from(await screenshot())
 
         files.push(ret)
       }

src/utils/puppeteer.ts

@@ -13,8 +13,8 @@ import { isWSL, resolveWindowsEnv } from './wsl'
 let executablePath: string | undefined | false = false
 let wslTmp: string | undefined
 
-export const enableHeadless = (): true | 'new' =>
-  process.env.PUPPETEER_HEADLESS_MODE?.toLowerCase() === 'new' ? 'new' : true
+export const enableHeadless = (): 'shell' | true =>
+  process.env.PUPPETEER_HEADLESS_MODE?.toLowerCase() === 'new' ? true : 'shell'
 
 const isShebang = (path: string) => {
   let fd: number | null = null

src/watcher.ts

@@ -1,15 +1,15 @@
 /* eslint-disable @typescript-eslint/no-namespace */
 import crypto from 'crypto'
 import path from 'path'
-import chokidar from 'chokidar'
+import chokidar, { type FSWatcher } from 'chokidar'
 import { getPortPromise } from 'portfinder'
 import { Server as WSServer, ServerOptions } from 'ws'
 import { Converter, ConvertedCallback } from './converter'
 import { isError } from './error'
 import { File, FileType } from './file'
 
 export class Watcher {
-  chokidar: chokidar.FSWatcher
+  chokidar: FSWatcher
 
   readonly converter: Converter
   readonly events: Watcher.Events
@@ -23,7 +23,7 @@ export class Watcher {
     this.mode = opts.mode
 
     this.chokidar = chokidar
-      .watch(watchPath, { disableGlobbing: true, ignoreInitial: true })
+      .watch(watchPath, { ignoreInitial: true })
       .on('change', (f) => this.convert(f))
       .on('add', (f) => this.convert(f))
       .on('unlink', (f) => this.delete(f))