PDF Security & Access Issues

How to Allow Signature Recipients to Attach Files in Adobe Acrobat

Olivia MillerOlivia Miller Nov 5, 2026 868 views

Question details

The user wants to know how to enable recipients to attach additional files when signing and returning a document.

Can a Signature Recipient Attach a File in Adobe Acrobat?
Product
Adobe Acrobat Sign
Device & OS
not provided
Scenario
Sending a document for electronic signature while requiring the recipient to provide supplemental documents during the signing process.
Observed behavior
The user needs to configure an agreement with a file-upload or attachment field before sending it out for signature.
Before you start

Ensure you have an active Adobe Acrobat Sign subscription that supports advanced form fields and recipient uploads, as this feature depends on your specific plan tier and administrator settings.

Solution 1Recommended

Configure the Agreement with a File Attachment Field

Add a dedicated file upload field to your document in Adobe Acrobat Sign before sending it, allowing recipients to seamlessly upload supporting files.

The ability to let a recipient upload a file is handled entirely through the drag-and-drop authoring environment in Adobe Acrobat Sign. By placing a specific field onto the document, the recipient will be prompted to attach their file before they can finalize their signature.

1
Prepare your document

Log into Adobe Acrobat Sign, click on 'Send' or 'Request e-signatures', and upload the document you want to send.

2
Enter recipient details

Input the email address of the recipient who needs to sign and attach a file, then click 'Next' or check the box to 'Preview & Add Signature Fields'.

3
Locate the File Attachment field

In the drag-and-drop authoring environment, look at the right-hand panel. Expand the 'More Fields' or 'Data Fields' section.

4
Place the field on the document

Click, drag, and drop the 'File Attachment' field onto the appropriate area of your document where you want the recipient to upload their file.

5
Configure field properties

Double-click the placed field to open its properties. Here, you can name the field and check the 'Required' box if the recipient must attach a file to complete the signing process. Click 'Send' when finished.

Configure the Agreement with a File Attachment Field
Plan Limitations: If you cannot find the File Attachment field in the authoring environment, verify with your IT administrator that your Acrobat Sign plan includes this feature and that recipient uploads are enabled in the account settings.
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Frequently Asked Questions

What types of files can a recipient attach in Adobe Acrobat Sign?

Depending on the administrator's settings, recipients can typically upload standard file formats such as PDFs, Word documents (DOCX), Excel spreadsheets (XLSX), and common image files (JPG, PNG).

Can I make the file attachment field mandatory for the recipient?

Yes. When configuring the File Attachment field in the Adobe Acrobat Sign authoring environment, you can edit the field properties by double-clicking it and checking the 'Required' box.

Why can't I see the File Attachment field in Acrobat Sign?

The File Attachment feature is not available on all Acrobat Sign plans (such as basic individual plans). It generally requires an enterprise or advanced business plan, and the account administrator must enable the feature in the global account settings.

How do I view the files attached by the recipient once the document is signed?

Once the agreement is completed, the attached files are typically appended to the end of the final signed PDF document automatically. They can also be downloaded separately from the agreement's management page in your Acrobat Sign dashboard.