static\PDF\web\viewer.js

392行左右

// 自定义搜索关键词----------------------------------------
this.searchKeywords = keyword => {
  if (typeof PDFViewerApplication !== 'undefined') {
    PDFViewerApplication.eventBus.dispatch('find', {
      query: keyword,
      caseSensitive: false,
      highlightAll: true,
      findPrevious: true
    });
  }
}

static\PDF\web\viewer.js

1261行左右 

// 高亮显示N个关键词----------------------------------------
var keywords = new URL(decodeURIComponent(location)).searchParams.get('keywords');//获取关键词数组
if (keywords && keywords !== 'undefi