File Upload

A standard HTML input upload field.

Configuration options

General

• Field name: the name of the field.
• Field caption/label: the caption of the field. This is usually displayed next to the input element to let users know what information is expected in the field.
• Field description: you can use this to provide additional instructions for using the field in the submission process.
• Enable multiple file upload: enable the option to upload multiple files through the same field.
• Max number of files to be uploaded: the number of files the user can upload through the field (this is set to 2 by default).
• Required: choose if the field is mandatory for the submission to be made.

Advanced

• Field id: the id of the form element. This is mainly used for internal purposes.
• Min file size (e.g 150kb or 3mb): set a minimum limit to the size of the files allowed to be uploaded through the form.
• Max file size (e.g 150kb or 3mb): set a maximum limit to the size of the files allowed to be uploaded through the form.
• Max size of all files in list (e.g 150kb or 3mb): set a maximum limit all files.
• File prefix: allows you to set a prefix to the name of the uploaded file.
• Accepted extensions: control the type of files that can be uploaded through the form. You can either select the extensions you want to allow from the displayed list or switch to the Advanced view and manually add the file MIME types for the desired file extensions.
• Instant upload: start the file upload as soon as the selection is made instead of waiting for the submission to be triggered.
• Image preview: when uploading images, display a preview of the uploaded image.
• Readonly: with this option enabled users will not be able to change the value from the field.

Below you can find a table with the most common MIME types: