How to Change the File Size Limit in File Upload Fields

May 21, 2025

The File Upload element lets you collect documents, images, and other media directly through your forms. It’s perfect for job applications with resumes, event registrations needing signed waivers, or customer support forms asking for screenshots or error logs.

The default File Size Limit ranges from 0 to 10854 KB (about 10.6 MB). And while this is great for most forms, adjusting the limit can help you better manage uploads—whether you need to allow larger files for detailed submissions or keep them smaller to save storage space— this helps you manage uploads in a way that fits your needs.

Once you’ve added a File Upload field to your form, you can easily adjust the file size limit in just a few simple steps. Here’s how to do it:

  1. In Form Builder, click on the File Upload field and then click on the Gear icon on the right side of it.
  2. Then, in the File Upload Properties window on the right side of the page, under the Options tab, enter a new minimum and maximum file size in KB (1024 KB equals 1 MB) in the Limit File Size section.
Limit File Size property under the Options tab of the File Upload Properties in Jotform Form Builder

That’s it! You’ve successfully set the file size limit for your file uploads. If you also want to change the types of files allowed in your File Upload field, check out our guide on How to Change the Allowed File Types in File Uploads.

Notes

  • Any changes you make to the file size limit are automatically saved.
  • The maximum individual file size allowed is 1 GB (1048576 KB).
  • The recommended maximum number of file uploads is 25 per entry.
  • Check your plan’s available Upload Space to better manage your File Size Limit.
  • If your form is connected to a cloud service like Google Drive or Dropbox, uploads larger than the cloud’s available storage space won’t be completed.
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