Path: Cockpit > Profile group > Content > + Create
Click + Create to write a new post in the profile group you want.
Upload your PDF file in the creator – just drag & drop or pick the file.
Add a title for your document – this is needed so your PDF shows up right on LinkedIn.
You can set the document title in the platform-specific settings.
Only with a set title will the PDF show up as a document in your LinkedIn post.
LinkedIn supports PDFs in posts as their own document type with a preview.