Hi @willson ,
Welcome to Q&A forum!
There is currently no out-of-the-box way to migrate site pages between SharePoint servers. There are two methods you can try:
- PowerShell
Use Export-SPWeb
in the SharePoint 2013 server to export the site page first.
Remember the file location and move the file to the SharePoint 2019 server.
Use Import-SPWeb
in the SharePoint 2019 server to import the file into SharePoint 2019.
For your reference:
https://sharepoint.stackexchange.com/questions/166014/export-and-import-a-site-page-using-powershell
- SharePoint Designer
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- Use a third-party tool.
For translate classic page to modern, unfortunately, there is currently no available method for converting a page from classic to modern.
Hope this can help.
Good day!
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