---
title: "Use the Documents tab"
url: "https://help.cadchat.com/en/article/use-the-documents-tab"
language: "en"
last_updated: "2026-07-12T23:59:30.010Z"
---

# Use the Documents tab

Upload and annotate PDFs, images, and CAD drawings in the Documents tab alongside your 3D model.

## Upload a document

1.  Open a space and click the **Documents** tab.
2.  Click **Upload documents** or drag and drop a file into the upload zone.

**Supported formats:** PDF, JPG, JPEG, PNG, DXF, DWG, CATDRAWING

Once uploaded, the document fills the canvas. Use the page navigator in the top right to move between pages on multi-page files.

![](https://cdn-assets.productfruits.com/72f337b9-3856-4e3f-8a5f-8ba2760a4814)

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## Documents toolbar

The left toolbar provides annotation and markup tools:

-   **Add Pin:** Place an anchored thread anywhere on the document. See [Threads overview](https://help.cadchat.com/en/article/threads-overview).
-   **Add Snapshot:** Capture a view of the document.
-   **Capture Screen Area:** Draw a selection to capture a specific region.
-   **Markup Settings:** Configure markup display options.
-   **Select:** Select and move markup elements.
-   **Hand:** Click and drag to pan the document.
-   **Draw:** Draw freehand lines.
-   **Highlighter:** Highlight areas of the document.
-   **Eraser:** Remove markup elements.
-   **Sticky Note:** Place a sticky note on the document.
-   **Text & Note:** Add a text annotation.
-   **Arrow:** Draw an arrow pointing to an area.
-   **Geo:** Insert shapes.
-   **Asset:** Add a new file to the tab
-   **Laser:** Temporarily draw on documents, laser point on document. 

Markups are visible to all space collaborators in real time.

![](https://cdn-assets.productfruits.com/3eced666-84ef-48ed-a06a-5aac863e4e10)

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## Tips and edge cases

-   DXF and DWG files show a **Contains layers** tag in the Files panel and a **Layers** button in the canvas. See Work with DXF and DWG layers.
-   The **Files** panel shows all uploaded documents and their management options.
-   If a document appears blank after uploading, wait for processing to complete and refresh.
-   If the page navigator shows 1/1 for a multi-page PDF, the file may not have processed correctly, try re-uploading.

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## Related articles

-   [Work with DXF and DWG layers](https://help.cadchat.com/en/article/work-with-dxf-and-dwg-layers)
-   [Manage document files](https://help.cadchat.com/en/article/manage-document-files)
-   [Understand the space layout](https://help.cadchat.com/en/article/understand-the-space-layout)
-   [Threads overview](https://help.cadchat.com/en/article/threads-overview)