Add files to your tasks to keep all relevant information in one place. Whether it’s a design mockup, a PDF specification, or a screenshot of a bug, attachments help you stay organized and work more efficiently.
Where to Find It
Attachments are located in the Task Detail view. When you open any task, you’ll find the attachments section between the task description and subtasks.
To open a task:
- Click on any task name in your task list, calendar, or board view
- The task modal will open, showing all task details including attachments
How to Add Attachments
There are two ways to add files to a task:
Click to Upload
- Open the task you want to add files to
- Click the “Add attachment” button in the attachments section
- Select one or more files from your computer
- Files will begin uploading immediately
Drag and Drop
- Open the task you want to add files to
- Drag files from your computer directly onto the task modal
- A drop zone will appear with the message “Drag and drop here to attach”
- Release the files to start uploading
You can upload multiple files at once using either method.
Viewing Attachments
Attachment List
- Attachments appear with a thumbnail preview (for images) or a document icon (for PDFs)
- Each attachment shows its filename and file size
- If a task has more than 3 attachments, click “Show more” to see all files
Full Preview
- Click on any attachment to open it in a fullscreen viewer
- Images display at full resolution
- PDFs open in an embedded viewer
- Use left/right arrow keys to navigate between attachments
- Press Escape or click the X button to close the viewer
Download
- Hover over any attachment to reveal the download button
- Click the download icon to save the file to your computer
Managing Attachments
Delete an Attachment
- Hover over the attachment you want to remove
- Click the trash icon that appears
- The attachment will be deleted immediately
Note: Attachments cannot be added to or deleted from archived tasks.
File Limitations
Maximum File Size
- 30 MB per file
- Files exceeding this limit will show an error: “File exceeds 30MB limit”
Supported File Types
| Category | Formats |
|---|---|
| Images | JPEG, PNG, GIF, TIFF, BMP, WebP, HEIC, HEIF |
| Documents |
If you try to upload an unsupported file type, you’ll see the error: “File type not supported”
Note about HEIC/HEIF files: These Apple image formats can be uploaded and downloaded, but may not display a preview in the browser. You can still download them to view on your device.
Tips for Best Results
- Use descriptive filenames - Files retain their original names, so clear naming helps everyone understand what they’re looking at
- Compress large images - If you’re hitting the 30MB limit, consider compressing images before uploading
- Convert HEIC to JPEG - For better compatibility across browsers, convert Apple HEIC photos to JPEG before uploading
- Keep attachments relevant - Only attach files that are directly related to the task to keep things organized
Keyboard Shortcuts
| Action | Shortcut |
|---|---|
| Navigate to previous attachment | Left Arrow |
| Navigate to next attachment | Right Arrow |
| Close attachment viewer | Escape |
Troubleshooting
“File exceeds 30MB limit”
The file you’re trying to upload is too large. Try compressing the file or splitting it into smaller parts.
“File type not supported”
Only image files (JPEG, PNG, GIF, TIFF, BMP, WebP, HEIC, HEIF) and PDFs are supported. Convert your file to a supported format before uploading.
Image doesn’t show preview
Some image formats (especially HEIC/HEIF from Apple devices) may not display previews in all browsers. The file is still uploaded successfully and can be downloaded.
Can’t add attachments
Make sure the task is not archived. Archived tasks don’t allow adding or deleting attachments.