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PDFs bring rich document context into your prompts, enabling tasks like summarization, information extraction, contract analysis, and report generation. Adaline lets you attach PDF files directly to messages and supports PDF variables for dynamic document processing.
PDF inputs are currently supported only with Google’s models (Gemini). Make sure you have a Google provider configured and a compatible model selected.
Keep in mind that large PDFs consume significant context window tokens. For best results, use concise documents or extract the relevant sections before attaching. The model processes the full document content, so multi-hundred-page PDFs may impact latency and cost.

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Add a PDF to a message

1

Open the PDF picker

Navigate to the message block and click the PDF button . You can upload a PDF from your computer, paste a URL, or retrieve it from a variable.Attaching PDFs in Adaline's messages
2

Run the prompt

Once the PDF is attached, run the prompt in the Playground. The model will process the document content alongside your text instructions.Running a prompt with a PDF attachment

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Use PDF variables

PDF variables let you dynamically swap documents at runtime, which is essential for document processing workflows where you need to run the same analysis across many files.
1

Create a PDF variable

Click the PDF button in the message block and select From Variable.Adding a PDF variable
2

Name and attach the variable

Define a descriptive name for the PDF variable and attach it to the message.Naming a PDF variable
3

Set the variable value

In the Variable Editor, attach the actual PDF to the variable. You can paste a URL, provide a base64-encoded string, or upload a file from your computer.Setting the PDF variable value

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Use cases

  • Document summarization — Extract key points and generate concise summaries from lengthy reports.
  • Information extraction — Pull specific data points, dates, or figures from structured documents.
  • Contract analysis — Review legal documents and flag key terms, obligations, or risks.
  • Report generation — Process raw data reports and generate formatted insights.
  • Compliance review — Check documents against a set of rules or guidelines.

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Next steps

Use Images in Prompts

Add image inputs for multi-modal prompts.

Use Variables in Prompts

Learn about all variable types, including PDF variables.