Having problems opening a FDF file?

We have programs that can open or convert your FDF files.

Opening FDF files

Did your computer fail to open a FDF file? We explain what FDF files are and recommend software that we know can open or convert your 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.

Try a universal file viewer

Try a universal file viewer like Free File Viewer. It can open over 200 different types of files - and most likely yours too. Download Free File Viewer here.

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.