Send the following on WhatsApp
Continue to Chat【iOS APP】PDF Office: Edit Text & Reader 處理PDF文件的好幫手,PDF文件處理軟體 https://app.yipee.cc/96598/%e3%80%90ios-app%e3%80%91pdf-office-edit-text-reader-%e8%99%95%e7%90%86pdf%e6%96%87%e4%bb%b6%e7%9a%84%e5%a5%bd%e5%b9%ab%e6%89%8b%ef%bc%8cpdf%e6%96%87%e4%bb%b6%e8%99%95%e7%90%86%e8%bb%9f/