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Attach files

Allows to attach files in the form.

There are a list of elements can be configured in the fieldlet:

Section to view

Indicates where the fieldlet will be in the Summary view of the Topic.

  • Header - Shows the fiedlet in the middle of the page.
  • Details - Shows the fiedlet in the right part of the page.
  • Between - Shows the fieldlet in the right part of the page, below the Details section.

Row width

Allows to personalize the anchor of the fieldlet in Edit topic.

The maximum allowed value is 12 (100% width of the tab).

Row height

Allows to personalize the height of the fieldlet in Edit topic.

The maximum allowed value is 12.

Hidden from view mode

Indicates if the field will be hidden from the summary view mode.

Hidden from edit mode

Indicates if the field will be hidden from the edit mode.

Mandatory field

Check if you want the field as mandatory.

Checkout directory

The default directory to storage the files.

Extension

The extensions allowed to be upload into the topic.

Example: jpg,.png,TXT, etc...

Validation

Empty files

Empty (0-byte) files are rejected on upload with a clear error. This typically happens when the file is still open or locked by another application on your computer (for example a Word or Excel document that is currently open), so the browser sends no content. Close the file and try again.

Supported features

Multiple file upload

Allows to select multiple files at once and upload them simultaneously.

Drag & Drop support

Allows to upload files by dragging them from your desktop or filemanager and dropping them on your fieldlet.

It is possible to drag&drop a complete folder structure, though this is currently only supported by Google Chrome.

In-browser preview

Attachments can be previewed directly in the browser without downloading them. When a file is previewable, an eye icon appears next to it in the attachment list; clicking it opens a preview dialog. A Download button is always available inside the dialog.

The following file types are rendered inline:

  • PDF documents.
  • Word documents (.docx).
  • PowerPoint presentations (.pptx) — slides are shown stacked and scrollable.
  • Spreadsheets (.xlsx, .xls, .csv) — each sheet is shown as a table.
  • Images (.png, .jpg, .jpeg, .gif, .bmp, .svg, .webp, .ico).
  • Text files (.txt, .sql, .log, .json, .markdown, .xml, .yaml, .yml, .ini, .conf).

File types that are not in this list keep only the regular download link. Legacy binary .doc and .ppt files are not previewable and must be downloaded.