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Expert PDF Professional : the professionnal tool to create, convert or edit all your PDF documents

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PDF Expert 点晴 - 强大的 PDF 阅读器 / 编辑器批注应用 APP (涂鸦/填表/签名)

How to merge PDF files on iPad and iPhone | PDF Expert

PDF Expert 7 Receives Powerful New Features for iOS 13 and iPadOS

Meet the new PDF Expert 6, finally allowing you to edit PDF text, its font and size, along with other all new features. Download link: apple.co/2pknWDK Now you can: - Edit images and add links to your files - Work in the cloud is now easy, with annotating, signing and editing files without downloading them - New Design, you use fewer taps to edit, zip, tag, move or sync files. - Redact tool allows you to hide sensitive data in the PDF. There's more: in PDF Expert 6 you can password protect your

This tells you how to use the comment tool on PDF expert.