How to connect Caption AI and PDF.co
Create a New Scenario to Connect Caption AI and PDF.co
In the workspace, click the “Create New Scenario” button.

Add the First Step
Add the first node – a trigger that will initiate the scenario when it receives the required event. Triggers can be scheduled, called by a Caption AI, triggered by another scenario, or executed manually (for testing purposes). In most cases, Caption AI or PDF.co will be your first step. To do this, click "Choose an app," find Caption AI or PDF.co, and select the appropriate trigger to start the scenario.

Add the Caption AI Node
Select the Caption AI node from the app selection panel on the right.

Caption AI
Configure the Caption AI
Click on the Caption AI node to configure it. You can modify the Caption AI URL and choose between DEV and PROD versions. You can also copy it for use in further automations.
Add the PDF.co Node
Next, click the plus (+) icon on the Caption AI node, select PDF.co from the list of available apps, and choose the action you need from the list of nodes within PDF.co.

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Authenticate PDF.co
Now, click the PDF.co node and select the connection option. This can be an OAuth2 connection or an API key, which you can obtain in your PDF.co settings. Authentication allows you to use PDF.co through Latenode.
Configure the Caption AI and PDF.co Nodes
Next, configure the nodes by filling in the required parameters according to your logic. Fields marked with a red asterisk (*) are mandatory.
Set Up the Caption AI and PDF.co Integration
Use various Latenode nodes to transform data and enhance your integration:
- Branching: Create multiple branches within the scenario to handle complex logic.
- Merging: Combine different node branches into one, passing data through it.
- Plug n Play Nodes: Use nodes that don’t require account credentials.
- Ask AI: Use the GPT-powered option to add AI capabilities to any node.
- Wait: Set waiting times, either for intervals or until specific dates.
- Sub-scenarios (Nodules): Create sub-scenarios that are encapsulated in a single node.
- Iteration: Process arrays of data when needed.
- Code: Write custom code or ask our AI assistant to do it for you.

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Trigger on Webhook
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Save and Activate the Scenario
After configuring Caption AI, PDF.co, and any additional nodes, don’t forget to save the scenario and click "Deploy." Activating the scenario ensures it will run automatically whenever the trigger node receives input or a condition is met. By default, all newly created scenarios are deactivated.
Test the Scenario
Run the scenario by clicking “Run once” and triggering an event to check if the Caption AI and PDF.co integration works as expected. Depending on your setup, data should flow between Caption AI and PDF.co (or vice versa). Easily troubleshoot the scenario by reviewing the execution history to identify and fix any issues.
Most powerful ways to connect Caption AI and PDF.co
Google Drive + PDF.co + Caption AI: When a new or modified file is detected in Google Drive, PDF.co extracts text from the PDF. Caption AI then uses this text to generate captions, enhancing the extracted content.
PDF.co + Caption AI + Slack: Parse a document with PDF.co, summarize the text content into a concise caption using Caption AI, and then deliver the generated caption to a specified Slack channel for team updates.
Caption AI and PDF.co integration alternatives
About Caption AI
Caption AI in Latenode streamlines content creation. Generate captions from images or videos directly within your workflows. Automate social media posting, ad campaigns, or content archiving. Latenode's visual editor and flexible integrations reduce manual work and allow for personalized, automated caption generation at scale, without code.
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About PDF.co
Need to automate PDF tasks? Use PDF.co in Latenode to parse data, convert formats, and add signatures. Automate document processing workflows without code. Latenode’s visual editor and affordable pricing make it easy to build scalable solutions for invoices, reports, and more. Bypass manual work and centralize document automation.
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See how Latenode works
FAQ Caption AI and PDF.co
How can I connect my Caption AI account to PDF.co using Latenode?
To connect your Caption AI account to PDF.co on Latenode, follow these steps:
- Sign in to your Latenode account.
- Navigate to the integrations section.
- Select Caption AI and click on "Connect".
- Authenticate your Caption AI and PDF.co accounts by providing the necessary permissions.
- Once connected, you can create workflows using both apps.
Can I automatically add captions from Caption AI to PDF documents?
Yes, you can! With Latenode, automatically add Caption AI generated subtitles directly into PDF documents. This saves time and ensures accurate, accessible content, leveraging no-code and custom JS blocks.
What types of tasks can I perform by integrating Caption AI with PDF.co?
Integrating Caption AI with PDF.co allows you to perform various tasks, including:
- Extract text from PDFs and use it as input for Caption AI prompts.
- Automatically create PDF reports from Caption AI generated data.
- Watermark PDFs with transcriptions generated via Caption AI.
- Convert audio from PDFs to text with Caption AI, then enhance the PDF.
- Embed captions from Caption AI as metadata within PDF documents.
Can I use JavaScript code to transform Caption AI outputs in Latenode?
Yes! Latenode allows you to use JavaScript to manipulate and reformat the output from Caption AI before passing it to PDF.co, enabling custom logic and control.
Are there any limitations to the Caption AI and PDF.co integration on Latenode?
While the integration is powerful, there are certain limitations to be aware of:
- Large PDF files may take longer to process, depending on the complexity of operations.
- The accuracy of Caption AI depends on the quality of the input audio or video.
- Complex PDF layouts may affect the accuracy of text extraction via PDF.co.