Every piece of content you add becomes a card on your workspace canvas. Cards are the building blocks of your thinking — you arrange them spatially, select them to give the AI context, and keep them for as long as you need them.
Ways to add content
You can add content to your workspace in two ways:
- Drag and drop files directly onto the canvas from your file manager or desktop
- Paste a URL into the chat or the add content dialog for YouTube videos and websites
The canvas accepts multiple files at once. Drop a whole folder of PDFs and they all land as individual cards.
File size limits
| Limit | Value |
|---|
| Per file | 50 MB |
| Combined per drop | 100 MB |
Content types
PDFs
YouTube videos
Audio
Images
Websites
Documents
PDFs are the most common source type. When you upload a PDF, ThinkEx runs OCR on every page so the AI can read the text even from scanned documents.To add a PDF:Drag and drop
Drag one or more .pdf files from your computer onto the canvas. A drop zone overlay appears to confirm the drop target.
Wait for processing
Each PDF card shows a processing indicator while OCR runs. Once complete, the AI can read the full text of every page.
.pdfPassword-protected PDFs cannot be processed. ThinkEx will notify you if a file is protected and skip it. Remove the password protection before uploading.
Add any public YouTube video as a card. ThinkEx fetches the video’s metadata and makes the transcript available for the AI to reason over.To add a YouTube video:Copy the video URL
Copy the URL from your browser’s address bar or from the YouTube share menu.
Ask the AI or paste directly
Paste the URL into the AI chat. The AI can detect YouTube URLs and add the video to your workspace. You can also ask it directly: “Add this video to my workspace: [URL]”.
You can also ask the AI to search YouTube for a topic and add a relevant video: “Find and add a YouTube video about the French Revolution.”
Record audio directly in ThinkEx. The recording is transcribed automatically, giving the AI a timestamped transcript to work with.To add an audio recording:Click Audio in the add card menu
In your workspace, click Add card and select Audio. This starts a recording session directly in your browser.
Record and stop
Speak into your microphone. Click Stop when finished. The audio is uploaded and a new audio card appears on your canvas.
Wait for transcription
Transcription runs automatically in the background. Once complete, the AI can answer questions about the recording, identify key points, and reference specific moments by timestamp.
- Speaker identification
- Timestamps for each segment
- A generated summary
Upload images to your canvas. ThinkEx runs OCR on images so the AI can read text that appears in them — useful for screenshots, diagrams, whiteboards, and photos of handwritten notes.To add an image:Drag one or more image files onto the canvas. OCR runs automatically after upload.Supported formats: .png, .jpg, .jpeg, .gif, .webp, .heic, .heif, .avif, .tiff, .tif
Add a website URL as a card on your canvas. The card embeds a live view of the page, and the AI can fetch and read the page content when you include the card in your context.To add a website:Paste the URL into the AI chat. The AI can add the website as a card on your canvas.Supported: Any publicly accessible URL.
Upload Word, Excel, and PowerPoint files. ThinkEx converts them so you can view and work with the content on your canvas.To add a document:Drag the file onto the canvas. ThinkEx handles conversion automatically.Supported formats:
- Word:
.doc, .docx
- Excel:
.xls, .xlsx
- PowerPoint:
.ppt, .pptx
What happens after you add content
Once a card is on your canvas, you can:
- Select it to include it in the AI’s context for your next message
- Open it to view the full content, transcript, or extracted text
- Move it into a folder to keep your canvas organized
- Rename it to something more descriptive than the original filename
- Change its color to visually group related sources