How Can I Merge two Google Doc documents directly by providing only DocIds (docId1 & docId2)?

Google Workspace Developers Q&A
4

@kalpen I wonder if you could export to PDF and combine them more readily… There are also add-ons for Google Docs for Merging such as https://workspace.google.com/marketplace/app/document_merge_for_google_docs/971999817107 -KAM