Importing and Exporting FDF Form Data in Acrobat Mobile and Web
Question details
The user wants to know if it is possible to import and export fillable PDF form data as FDF files using Adobe Acrobat on mobile or web platforms to reuse information across forms.

- Product
- Adobe Acrobat Mobile and Web
- Device & OS
- iOS (iPhone) and Web
- Scenario
- Reusing filled information across multiple PDF forms on an iPhone without combining PDFs or manually re-entering the same data.
- Observed behavior
- The user is unable to find the functionality to import or export FDF form data in the mobile or web versions of Adobe Acrobat because it is missing.
Ensure you have access to a desktop or Mac computer, as handling FDF files and executing custom form scripts currently requires a full desktop PDF application.
Use the Desktop Version of Adobe Acrobat for FDF Files
Since Acrobat mobile and web apps lack custom scripting support, you must use the desktop application to import or export FDF form data.
FDF (Forms Data Format) files rely on custom background scripts to map the exported data back into the correct PDF form fields. Because Adobe Acrobat mobile and web platforms do not support these advanced desktop-level scripts, you cannot perform this action entirely on an iPhone or a web browser.
Send the blank PDF form and your saved FDF data file from your iPhone to your Windows or Mac computer via email, cloud storage, or file sharing.
Launch the desktop version of Adobe Acrobat and open the fillable PDF form you wish to populate.
Navigate to the 'Tools' menu at the top, select 'Prepare Form', and click on the 'More' options (often represented by a gear icon or three dots in the right pane).
Select 'Import Data' to browse for your FDF file and populate the form, or choose 'Export Data' to save the currently filled fields as a new FDF file for later reuse.

Manage and Fill PDF Forms Easily with WPS Office
While mobile PDF apps have strict limitations with FDF scripts, WPS Office provides a robust desktop PDF editor that makes filling, editing, and extracting data from PDF forms highly efficient.
- 1. Install WPS Office: Download and install WPS Office on your Windows or Mac desktop computer.
- 2. Open your PDF form: Launch WPS PDF and open your interactive, fillable PDF document.
- 3. Fill in the form fields: Click directly on the highlighted form fields to type your information smoothly without relying on complex scripts.
- 4. Extract or save data: Save your completed PDF, or use the 'PDF to Excel' tool under the 'Tools' tab to extract your filled data into a structured spreadsheet for easy reuse.

Frequently Asked Questions
What is an FDF file and why is it useful?
An FDF (Forms Data Format) file is a lightweight text file that contains only the data entered into a PDF form, rather than the entire document. It is highly useful for saving form responses independently and importing them into identical blank forms to save time on manual data entry.
Why does Adobe Acrobat mobile not support FDF imports?
Adobe Acrobat mobile and web applications are designed to be lightweight and currently do not support the desktop-level custom scripting engine required to accurately map and execute FDF data imports into PDF fields.
Is there a workaround for keeping form data together on an iPhone?
If you cannot use FDF files, a common workaround on mobile is to save the filled PDF as a flattened copy, or use the 'Combine Files' feature (requires a premium subscription) to merge multiple filled PDFs into a single document instead of moving the raw data.




