Note: The files that you upload will be scanned for any virus before form submission. You will have to upload a different file if the uploaded file contains a virus.

Uploaded file's name

When your users upload a file to this field, the file's name is set in the following format:

• The file's name is prepended by an underscore (_) and a system-generated number that uniquely identifies that file in your account
• The file's name will automatically be trimmed when it exceeds 150 characters
• Whitespaces and other special characters, excepting hyphens (-), will be replaced by an underscore (_).

On accessing from a web browser

The following is an example of a file upload field when a user accesses from a web browser. Subject to the  browse options  you enable for your field, your users can upload a file:

• From local storage
• From Zoho WorkDrive
• From Google Drive

To upload a file from local storage

1. Click the  upload  icon. This will launch the device's file manager.
2. Select the required file.

Alternatively, you can drag and drop the required file in to the field.

To upload a file from Zoho WorkDrive

1. Click the cloud picker icon. The Cloud Picker  pop-up window will appear, displaying all the files and folders present in your  Zoho WorkDrive.
2. Select the required field, then click  Attach.
   
   
   

To upload a file from Google Drive

1. Click the  cloud picker  icon. The  Cloud Picker  pop-up window will appear.
2. Select  Google Drive  on the left. If you previously connected with your Google account, the files and folders from your Google Drive will be displayed, and you will be taken to step six.
3. Click  Authenticate Google .
   

   

4. Enter your Google account's credentials.
5. Grant Zoho Corp the permission to view and manage the files in your Google Drive. Upon a successful connection, all the files and folders from your Google Drive will appear.
6. Select the required field, then click  Attach .

Note:

1. The end users can connect with multiple Google accounts via the Sign in as a different user button near the top-right corner of the Cloud Picker pop-up window.
2. The end users will be able to upload files from their Google Drive, if Zoho has access to their Google accounts. Refer to this page to learn more, including removing this access.
   

On accessing from a phone or tablet

The following is an example of how a file upload field looks when a user accesses from a phone or tablet. Your users will be able to:

• Upload a file
• Upload a photo from their device's gallery
• When using iOS 13.0 and later,  scan photos and upload them as a PDF file

To upload a file

1. Tap the file upload field, then tap  Browse . This will open the recently accessed files in your user's device.
2. Select the required file.

To upload a photo

1. Tap the file upload field, then tap  Choose Photo . This will open the device's photo gallery.
2. Select the required photo. This will close the photo gallery and let the end user preview the selected photo.

Scan photos and upload as a PDF

Users of iOS 13.0 and later  will be allowed to scan multiple photos and upload them as a PDF to the file upload field.

1. Tap the file upload field, then tap  Scan Document .
2. Capture the required images and click  Save .

Field properties

You can perform the following customizations for the user experience of the file upload field on a form:

• Set the browse options : This defines the sources from which your users will be able to select the file when they access the file upload field.
  
  • Local Computer enables your users to upload a file that's stored in their device—computer, phone, or tablet
  • Zoho WorkDrive enables your users to upload a file from their Zoho WorkDrive
  • Google Drive enables your users to upload a file from their Google Drive
• Customize the  field name and field link name  of this field
• Make it  mandatory  for your users to upload a file in this field
• Show the field only to the app’s admin  (and hide it from other users)
• Set the  field size
• Describe this field  using a tooltip or a help text

URL format for downloading a file

A file stored in the file upload field can be downloaded using the following URL:

where,

• domain  will be DC-specific. For example, you'll need to use  creatorexport.zoho.com  if your account is in Zoho's US data center, and  creatorexport.zoho.eu  if in the EU data center. Click here to find your domain specific to your DC.
• account_owner_name  contains the user name of the Creator application's account owner and the link name of the application.
• reportLinkName  is the link name of the report where the corresponding file upload field is displayed.
• fieldLinkName  is the  link name  of the corresponding file upload field. 
• fileName  is the corresponding file's name.  Learn more

For example, imagine that you've built a  Candidate Recruitment  app. In this application, you have created a form named  Candidate Details , where your users will enter the required details and upload their resume. When you access the  Candidate Details  report, you may want to view their resumes. To do this, you can configure a custom action in your report such that when you click the button  Download resume , the resume is downloaded as a file. This custom action has the above URL format constructed as follows:

where,

• BaseURL  is a variable that refers to the URL you have constructed
• zoho.appuri  returns the application details in the format:
   /<account_owner_name>/<application_link_name>/
• input.<fieldLinkName>  returns the  filename  of each file stored in the corresponding file upload field
• The  openUrl  Deluge task is used to redirect the user to the specified URL. This URL can be opened in the same window, new window, parent window, popup window, or iframe

Now, when you access the  Candidate Details report,  you can see the  Download resume  button:

In the above image, Megan is the <account_owner_name> and candidate-recruitment is the <application_link_name>

Tip : This URL format can be used to download files from the field upload, image, audio, video, and signature fields

Points to Note

1. A maximum of 10 files can be uploaded per file upload when the Multiple files option is chosen.
2. Files up to 50 MB can be uploaded.
3. If an uploaded file is empty (i.e. it contains no valid data), it will not be accepted. Please ensure the file has valid content before uploading.
4. All uploaded files will be automatically renamed to a system-generated format to ensure each file name remains unique.
5. If a file name exceeds 150 characters, it will be shortened automatically to meet the character limit.
6. All whitespaces and special characters (excluding hyphens) in file names will be replaced with underscores for consistency and compatibility.
7. If the file upload field has the Multiple files property enabled, then they can't be referenced in formula expressions.
8. Assignment statements can't be used for multi-file upload fields in Before Form Submission workflows.
9. Aggregate functions, like sum and average (excluding count), can't be used for multi-file upload fields.
10. In subforms, adding or updating files through a workflow is not supported for multi-file upload fields.
11. Admins can set an upload limit for each multi-file upload field to restrict the number of files users can upload.

1.  Understand fields
2. Set browse options for file upload field