A fdf file extension is associated with the Adobe Acrobat. A fdf file stores Portable Document Input Form.

There are 2 other file types using
the FDF file extension!

empty icon.fdf - Client Access Express format description

empty icon.fdf - Origin fitting function definition

Detailed description

Software that works with fdf file extension

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FDF file extension - Adobe Acrobat Portable Document Input Form

What is fdf file? How to open fdf files?

File type specification:

Document file type icon Document file type

fdf file icon: fdf filetype icon

The fdf file extension is used for Adobe Acrobat Portable Document Input Form files.

The full form is Forms Data Format. It is a text file format used for data exported from PDF form fields. It is smaller than PDF files because they only contain form field data not the entire form.

This is a forms document and can be created by Adobe Acrobat and read by Adobe's Acrobat Reader.

This file format started to widely appear attached to spammed messages. Prior to that, these messages would contain PDF spam, DOC or XLS spam content.

MIME types:

The default software associated to fdf file type:

Adobe Acrobat icon

Adobe Systems Incorporated logo Adobe Acrobat  Microsoft Windows software

Company or developer:
  Adobe Systems Incorporated

Adobe Acrobat is fully featured document solution that works with PDF format and is able of both opening and editing of existing PDF documents, or creating new ones from scratch. Acrobat DC is the last version after Acrobat XI. You can purchase it as standalone desktop software. 

Adobe Acrobat for Mac icon

Adobe Systems Incorporated logo Adobe Acrobat for Mac  Apple macOS / Mac OS X software

Company or developer:
  Adobe Systems Incorporated

Much like its Windows counterpart, the Mac version of Adobe Acrobat is software used view, create, manipulate, print and manage files in PDF document file format. Acrobat is available in three editions - Acrobat XI Pro, Acrobat XI Standard and Acrobat XI Suite as well as part of Creative Cloud.

Adobe Creative Cloud icon

Adobe Systems Incorporated logo Adobe Creative Cloud  Multiplatform software

Company or developer:
  Adobe Systems Incorporated

Adobe Creative Cloud is latest member of Creative family. With this version Adobe moved from one-time fee to subscription based model, while no longer plans to offer one time purchase options like the users were used. There is either annual or monthly fee for using the whole bundle or just one program.

Help how to open FDF files:

Use Adobe Acrobat Reader. If you receive it as an e-mail attachment with small file size, you don't need to open it, because it contains only a spam text message.

To create/edit use Adobe Acrobat.
It can be created in Acrobat by selecting Advanced -> Forms -> Export Forms Data from the menu bar..

How to convert file with extension FDF:

Use Adobe Acrobat to export *.fdf files to other formats.

Find conversions from fdf file:

fdf to pdf

Find converter to fdf file type:

xfdf to fdf

File identification strings:

HEX code: 25 46 44 46 2D
ASCII code: %FDF-

List of software applications associated to the .fdf file extension

Recommended software programs are sorted by OS platform (Windows, Mac OS X etc.) and possible program actions
that can be done with the file
: like open fdf file, edit fdf file, convert fdf file, view fdf file, play fdf file etc. (if exist software for corresponding action in File-Extensions.org's database).

Click on the tab below to simply browse between the application actions, to quickly get a list of recommended software, which is able to perform the specified software action, such as opening, editing or converting of the fdf files.

  • Open fdf file
  • Save fdf file
  • Edit fdf file
  • View fdf file
  • Create fdf file
  • Print fdf file
  • Others fdf file

Software that open fdf file - Adobe Acrobat Portable Document Input Form

Click on the link to get more information about listed programs for open fdf file action.

Microsoft Windows:

Main software associated with fdf file by default:
Adobe Acrobat small icon Adobe Acrobat
Other suggested software:
Adobe Acrobat Reader small icon Adobe Acrobat Reader

Apple macOS / Mac OS X:

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FDB file extension

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