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Documentation
  • Tutorials
  • How-to guides
  • Reference
  • Explanation
Getting started
  • Start here
  • Your first research project in Atlas
  • Add your first source
Projects
  • Work with the three-panel workspace
  • Create and manage projects
  • Project structure
Sources
  • Import a PDF into Atlas
  • Add a website source
  • Add a YouTube source
  • Search and add academic papers
  • Read PDFs
  • Source types
  • PDF viewer
Chat & citations
  • Ask a grounded question
  • Synthesize across multiple sources
  • Follow citations back to source
  • Use mentions in chat and notes
  • Use web search
  • Add files to chat
  • Citation system
  • Search modes
  • How Atlas grounds answers in sources
  • Verifiable AI: the citation trust model
Notes
  • Write your first note
  • Import Markdown notes
  • Note editor
  • Note editor formatting
Knowledge maps
  • Generate a knowledge map
  • Edit and export a knowledge map
  • Knowledge map controls
  • Map node types
  • Why visual knowledge maps
Semantic maps
  • Read the semantic map
  • Semantic map controls
Search, summaries & questions
  • Find research in a project
  • Use summaries to triage sources
  • Summaries
  • Question suggestions
Workspace
  • Use tabs and split view
  • Workspace layout
  • Command palette
  • Keyboard shortcuts
  • Mobile app
Account, billing & limits
  • Sign in and reset your password
  • Manage billing
  • Delete your account
  • Plans and limits
  • Attachments
Troubleshooting
  • Troubleshoot source processing
  • Troubleshoot citations and weak answers
  • Troubleshoot billing and limits
  • Troubleshoot mobile and browser issues

Import a PDF into Atlas

Upload a PDF when you want a paper, report, or document to become source material in an Atlas project. After processing, the PDF can be searched, cited, summarized, mapped, and used in grounded chat.

Before uploading

Choose a file that Atlas can extract cleanly:

  • the file is a PDF
  • the PDF is not password-protected
  • the text can be selected in a normal PDF reader
  • the file size is within your plan limits
  • the document belongs in the project you currently have open.

If this is your first import, use a clean research paper or report. Save scanned documents and unusually large files for later.

Upload the PDF

  1. Open the project where the PDF should live.
  2. Open the add-source flow.
  3. Choose the PDF upload option.
  4. Select the file from your computer.
  5. Wait for upload and processing to finish.

Upload and processing are separate. The file may appear before it is fully ready for chat, maps, or citations.

Confirm the PDF is usable

Open the PDF from the project source list and check:

  • the title is recognizable
  • pages render in the viewer
  • body text is present
  • search can find a phrase from the paper
  • a simple question about the source returns a relevant answer.

For example, ask: What is the main claim of this PDF?

If something fails

SymptomLikely causeNext step
Upload is blockedFile type, file size, quota, or account stateCheck Plans and limits
Processing failsProtected, malformed, or difficult-to-extract PDFTry a cleaner text-based copy
Text is missingScanned or image-only PDFUse a version with selectable text if available
Citation page looks strangePDF page labels differ from extracted page orderVerify by nearby text, not only page number

Next

  • Read PDFs
  • PDF viewer
  • Generate a knowledge map

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for understanding research papers.

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