IMPORT · FILES, BOOKS AND PAPERS
Import research papers into NotebookLM by DOI
Short answer
To build a literature notebook, paste paper URLs or DOIs into the papers import of NotebookLM Ultra Exporter Pro. It resolves each one, shows whether full text, an abstract or only a link is available, and imports the items you select.
Quick facts
| Item | Detail |
|---|---|
| Where | Import center, papers / DOI method |
| Plan | Pro |
| Allowance | Pro only. No extension daily quota; individual tools still have task caps. |
| Data flow | The material you select is sent to Google NotebookLM. Capture reads the source site from your browser. |
Steps
- Install NotebookLM Ultra Exporter in desktop Chrome, then refresh any open NotebookLM (Gemini Notebook) tab.
- Connect Pro: open the extension's account panel and sign in with the Google account you bought Pro with.
- Open the import center and choose papers.
- Paste DOIs, paper URLs, arXiv or PubMed identifiers, one per line.
- Check the preview, which distinguishes full text, abstracts and links, then submit.
Limits to know
- It does not bypass paywalls and does not promise full text.
- Metadata quality depends on what the publisher exposes.
- Google's own limits still apply: sources per notebook, file size and accepted file types are decided by NotebookLM, and Pro does not raise them.
Free or Pro?
Requires Ultra Exporter Pro (annual or one-time). Pro covers the extension only; it does not include a Google subscription or raise NotebookLM's own limits. Current prices are on the pricing page.
Frequently asked questions
Is it free to import research papers into NotebookLM by DOI?
No. This import method is part of Ultra Exporter Pro. The basic methods (links, pasted text, files, tabs, the current page, RSS and YouTube) are free within 20 imports per day.
What if only the abstract is available?
The preview says so. Import the abstract, or download the PDF through your library access and upload the file instead.
Does importing count toward the NotebookLM source limit?
Yes. Every imported item becomes a source in the notebook and counts toward its source limit, which depends on your Google plan. To free up slots, see merge sources into one.
Related guides
To add arXiv papers in bulk, paste arXiv links or identifiers into the papers import of NotebookLM Ultra Exporter Pro.
To collect biomedical literature, paste PubMed links or identifiers into the papers import of NotebookLM Ultra Exporter Pro.
To add many files at once, drop them, or a whole folder, into the NotebookLM Ultra Exporter import center.
To query your Obsidian notes in NotebookLM, pick the vault folder in the NotebookLM Ultra Exporter import center.
To add Markdown notes or documentation, select the .md files in the NotebookLM Ultra Exporter import center.
To study a book in NotebookLM, use the book import in NotebookLM Ultra Exporter Pro. It parses the EPUB, previews it by chapter, and imports each selected.
When a PDF is too large for one NotebookLM source, the book import in NotebookLM Ultra Exporter Pro splits it into smaller PDFs that keep their layout, by.
When a notebook reaches its source limit, NotebookLM Ultra Exporter can combine several sources into one text source that keeps a table of contents, the.