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How to Upload Images and Files to Events

Calendar events are often more than a date and a time. You may need to include event-related documents and files: meeting agendas, travel information, checklists, instructions, maps, location details, product images, or a picture of goods delivered.

With Teamup Calendar, you can upload images and documents to an event both in a browser and with Teamup mobile apps. There are three fields where you can upload files: in the Description field, in the event comments, and in the Attachments field (beta, currently available in the Live Demos).


On a browser and on the mobile apps, uploading to Teamup’s file servers is available with a Premium subscription. Anyone can try this feature in the Live Demos, which have the file upload feature fully enabled, including the new Attachment Field.

Upload in the Description field

To upload a file in the Description field, open the event editor, scroll to the Description field, and click the upload icon. If the file is an image, you can choose to show it as visible image or a clickable link. 

Upload images and documents

To resize an image, select it with your mouse, then click and hold a corner and drag adjust the size. To align an image, click the three dots in the toolbar, then choose the alignment. 

Upload in event comments

When the Comment feature is enabled, users can add and view comments in the event viewer/editor, and on the event page. Event comments have a toolbar like the Description field with formatting and uploading options. See more about event comments.

Click the Upload button to add a file or image, then click Save.

Upload in the Attachments field

The Attachments field allows you to upload files to an event in a dedicated field. You can then choose to insert attachments into the Description field, if desired.

Attachment field

Note that the Attachments field is currently being released in phases. Please contact Teamup support if you experience any issues while using it. The Attachments field is also enabled on our live demo calendars so anyone can try out this feature. 

Upload an attachment

  1. Open an event or create a new event.
  2. Scroll down (below the Description field).
  3. In the Attachments field, click Upload:
  4. Select the file you wish to upload and follow the prompts.  You can upload multiple files. In the Attachments field, you’ll see a thumbnail of each file beside the file name:

    Working with files in the attachments list

    You can attach multiple files in the Attachments field. And, just like any event field, you can deactivate this field or reorder it.

    • Click Copy URL to copy an attachment’s unique URL.
    • Click Insert insert an attachment into the Description field.
    • Click Delete to delete any attachment.
    You can show or hide the list of attachments:

    Note that files uploaded to the Description field or added to an event comment will not be included in the list of files in the Attachments field. If you upload a file to the Attachments field and then insert it in the Description field, it will be included in the list of files.

Upload on Teamup mobile apps

Uploading a file or image on Teamup mobile apps works much the same as it does in a browser. 

Upload in the Description field

  1. Tap to create an event, OR
  2. Tap an event to open it, then tap the Edit icon.
  3. In the Description field, tap the blue Upload link
  4. Tap the green + button in the bottom right.
  5. Choose the file source, then tap to choose the file and tap Done (top right).
  6. Tap the check mark (top right).
  7. Choose whether to insert as a visible image or clickable link.
  8. Tap the check mark to save.

Upload in the Attachment field

Follow the same steps as above, but tap the blue Upload link in the Attachment field. 

Upload in the event comments

  1. Tap to open an event. 
  2. Tap the blue Add Comment link. 
  3. Tap the blue Upload link to add a file or image. 
  4. Tap the green + button in the bottom right.
  5. Choose the file source, then tap to choose the file and tap Done (top right).
  6. Tap the check mark (top right).
  7. Choose whether to insert as a visible image or clickable link.
  8. Tap the check mark to save.

Preview files in the Attachments field

On a web browser, click any file in the Attachments field to preview. Use the arrow to preview multiple images or documents.

Similarly, on a mobile app, tap any file to preview and swipe to preview multiple files.

More about uploading files

Multiple file and image sources

On the browser, when you click the upload icon, a pop-up window will appear: 

  • You can paste an image that you have copied to your clipboard. 
  • You can choose from the list of source options or drag a file from your local computer or mobile devices, or one of the many supported file hosting services such as Dropbox, Google Drive, OneDrive, Instagram, Flickr and many more.

It is possible to upload multiple files or images at once.

Supported file sources

  • My Device
  • Dropbox
  • Google Drive
  • OneDrive
  • Facebook
  • Instagram
  • Flickr
  • Box
  • Link / Web images

Teamup file and image management

Each file uploaded using Teamup’s premium uploading feature is assigned a unique URL containing a randomized string that prevents unauthorized users from finding the document.

Uploaded documents are deleted 30 days after a document link is removed from an event or an event is deleted.

Supported file types

To know whether a file with a specific file format can be uploaded, you may check the MIME type of the file.  The following MIME types are currently supported:

  • image/
  • text/
  • application/

Many commonly used file formats such as .pdf, .doc, .ppt etc. have MIME type “application/”, therefore you can upload and attach them to your events.  Here is a summary list of file formats and their mime types.

Maximum file size

The maximum file size that can be uploaded is 20 MB. The available file storage space per calendar is 50 GB. If you reach that limit and need more space, please contact support@teamup.com.

Domains to be whitelisted

If your organization uses a firewall to control your network traffic, it is important to whitelist these domains to ensure the file uploading function to work properly:

Insert images from Dropbox and other files accessible online

On a browser, inserting files stored on Dropbox or elsewhere online is free to all users.  To do so, simply click the Dropbox icon or the image icon in the Description box or in an event comment. See here for more details.

Updated on January 31, 2023