Opening FDF files

What is a FDF file?

The .fdf file extension refers to a specific document file that is related to Adobe. FDF files are document files that can be opened or created using Adobe Acrobat reader. FDF means "forms data format". It is a forms format specifically for .pdf files. FDF files are used for text files exported from .PDF files.

FDF files are fairly smaller than .pdf files because they mainly contain the forms field data and not the entire form. In other words, .fdf files only have the "contents" of the .pdf without the complete package. It is like a thought in your head without putting it in the paper. Some editorial managers in browsers use files with .fdf extension to ensure that the file opens in Adobe Reader and not within the browser. Only the Reader can open .fdf file, but the users can export it in .pdf.

FDF file format is now popularly used as an attachment in spam messages. If you receive an attachment in your email and the size is fairly small, opening it is not advisable and is considered impractical. Small FDF files are quite harmless, but are also useless. However, .fdf files that consume large memory size should be scanned first before prompting it to your Adobe Reader. You may resume downloading the .fdf file once you're done with the necessary security check. Converting the FDF file to PDF is also recommended to make the file more accessible.

Software that will open, convert or fix FDF files

Windows

• Foxit ReaderVerifiedProgram has been verified by file.org to work with FDF files.
• Adobe ReaderUser Submitted
• Adobe AcrobatUser Submitted
• Adobe Acrobat Reader DCUser Submitted
• Adobe Acrobat DCUser Submitted

About File Extension FDF

File.org aims to be the go-to resource for file type- and related software information. We spend countless hours researching various file formats and software that can open, convert, create or otherwise work with those files.

If you have additional information about the FDF file format or software that uses files with the FDF suffix, please do get in touch - we would love hearing from you.