How to Add a File Upload Question (and Its Limits)

1. 1

   Add the block

   In the builder, add a FileUpload block the same way you'd add any other question.

2. 2

   Know the size limit

   Every file is capped at 10MB. It applies to every FileUpload block.

3. 3

   Know the accepted file types

   Accepted types are images (JPEG, PNG, GIF, WebP), PDF, Word documents (.doc/.docx), Excel spreadsheets (.xls/.xlsx), plain text, and CSV. Video files are not supported — worth calling out if you're building something like a video-testimonial form.

4. 4

   What happens with a bad file

   If a respondent picks a file that's too large or the wrong type, it's rejected client-side with an inline error immediately — before they submit the rest of the form.

5. 5

   Typical uses

   Common uses: resumes on job-application forms, photos on guest-feedback or bug-report forms, and supporting documents on intake forms.

Frequently asked questions

Can respondents upload a video?

No — video files aren't in the accepted list, so they're rejected client-side the same as any unsupported type.

When does someone find out their file was rejected?

Immediately — the check happens client-side before upload, so they see an inline error and can fix it without losing the rest of their answers.