The type of unclaimed draft to create. Use send_document to create a claimable file, and request_signature for a claimable signature request. If the type is request_signature then signers name and email_address are not optional.

Use files[] to indicate the uploaded file(s) to send for signature.

This endpoint requires either files or file_urls[], but not both.

Use file_urls[] to have Dropbox Sign download the file(s) to send for signature.

This endpoint requires either files or file_urls[], but not both.

Allows signers to decline to sign a document if true. Defaults to false.

A list describing the attachments

The email addresses that should be CCed.

Client id of the app used to create the draft. Used to apply the branding and callback url defined for the app.

When used together with merge fields, custom_fields allows users to add pre-filled data to their signature requests.

Pre-filled data can be used with "send-once" signature requests by adding merge fields with form_fields_per_document or Text Tags while passing values back with custom_fields together in one API call.

For using pre-filled on repeatable signature requests, merge fields are added to templates in the Dropbox Sign UI or by calling /template/create_embedded_draft and then passing custom_fields on subsequent signature requests referencing that template.

This allows the requester to specify field options for a signature request.

Group information for fields defined in form_fields_per_document. String-indexed JSON array with group_label and requirement keys. form_fields_per_document must contain fields referencing a group defined in form_field_groups.

Conditional Logic rules for fields defined in form_fields_per_document.

The fields that should appear on the document, expressed as an array of objects. (For more details you can read about it here: Using Form Fields per Document.)

NOTE: Fields like text, dropdown, checkbox, radio, and hyperlink have additional required and optional parameters. Check out the list of additional parameters for these field types.

• Text Field use SubFormFieldsPerDocumentText
• Dropdown Field use SubFormFieldsPerDocumentDropdown
• Hyperlink Field use SubFormFieldsPerDocumentHyperlink
• Checkbox Field use SubFormFieldsPerDocumentCheckbox
• Radio Field use SubFormFieldsPerDocumentRadio
• Signature Field use SubFormFieldsPerDocumentSignature
• Date Signed Field use SubFormFieldsPerDocumentDateSigned
• Initials Field use SubFormFieldsPerDocumentInitials
• Text Merge Field use SubFormFieldsPerDocumentTextMerge
• Checkbox Merge Field use SubFormFieldsPerDocumentCheckboxMerge

Send with a value of true if you wish to enable automatic Text Tag removal. Defaults to false. When using Text Tags it is preferred that you set this to false and hide your tags with white text or something similar because the automatic removal system can cause unwanted clipping. See the Text Tags walkthrough for more details.

The custom message in the email that will be sent to the signers.

Key-value data that should be attached to the signature request. This metadata is included in all API responses and events involving the signature request. For example, use the metadata field to store a signer's order number for look up when receiving events for the signature request.

Each request can include up to 10 metadata keys (or 50 nested metadata keys), with key names up to 40 characters long and values up to 1000 characters long.

When only one step remains in the signature request process and this parameter is set to false then the progress stepper will be hidden.

Add Signers to your Unclaimed Draft Signature Request.

This allows the requester to specify the types allowed for creating a signature.

Note: If signing_options are not defined in the request, the allowed types will default to those specified in the account settings.

The URL you want signers redirected to after they successfully sign.

The subject in the email that will be sent to the signers.

Whether this is a test, the signature request created from this draft will not be legally binding if set to true. Defaults to false.

Set use_text_tags to true to enable Text Tags parsing in your document (defaults to disabled, or false). Alternatively, if your PDF contains pre-defined fields, enable the detection of these fields by setting the use_preexisting_fields to true (defaults to disabled, or false). Currently we only support use of either use_text_tags or use_preexisting_fields parameter, not both.

Set use_text_tags to true to enable Text Tags parsing in your document (defaults to disabled, or false). Alternatively, if your PDF contains pre-defined fields, enable the detection of these fields by setting the use_preexisting_fields to true (defaults to disabled, or false). Currently we only support use of either use_text_tags or use_preexisting_fields parameter, not both.