It can optimize or compress PDF, add watermark to PDF, remove restrictions from PDF, edit PDF document, etc. However, its free plan has limitations. In the free plan, only 3 tasks per day can be done.

Microsoft announced this week that's it's now possible for Office 365 users to import table data from Adobe Portable Document Format (PDF) files into the Microsoft Excel spreadsheet program.

You can create a table of contents in Microsoft Word where every chapter title links to the appropriate chapter. Then you can keep these links live when you convert the document to a PDF.