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File field: one file or several attachments

Attach contracts, invoices and drawings. Choose one file or several, set the formats and the size, and decide whether the files are public.

4 minUpdated Oct 27, 2026

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How it works

Examples of formats: pdf, docx, xlsx, jpg, png, mp4, mp3, zip, dwg and psd.

Replacing the file in single-file mode

Delete the current file first, then upload the new one. Uploading on top of it is rejected, and nothing is saved.

Switching the field from multiple files to a single file doesn’t delete the old files, but it stops more from being added.

If a teammate and an automation add a file at the same moment, both files are saved.

A file downloads with its original name and type.

Documents generated from templates can be attached in a file field.

At a glance

Setting

What it does

Mode

Multiple Files (default) or Single File

Max files per record

In Multiple Files mode, 10 by default, up to 100

Accepted formats

Choose from the groups: images, documents, video, audio, archives, engineering drawings, design

Max file size (MB)

Up to 25 MB

Show files on public forms

Shows the attachments in the public unit; off by default

Showing files on public forms gives download links to anyone who has the public form’s link. Don’t turn it on for contracts or ID documents.

If something goes wrong

What you see

Why

What to do

A message that single-file mode allows one file

The field already has a file.

Delete the current file, then upload.

A message that the format isn’t allowed

The format isn’t in the list.

Convert the file, or add the format.

The file is larger than allowed

It’s over the limit.

Compress the file, or raise the limit, up to 25 MB.

Good to know

10 files by default in multiple-files mode, and up to 100.

Up to 25 MB per file.

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