Opening a JDF File

The JDF file type is primarily associated with Delta.

JDF	File extension: JDF
	File type:	Project file

What is a JDF file?

JDF files mostly belong to Delta by JEOL. JDF is the extension used by a job definition file. The JDF file is a job ticketing (or job intent) file format that has been developed for information exchange in the domain of graphic design. It is an XML format file that is used to describe a printing workflow. A JDF file is extensible; it can either have a rough outline of the job definition or can describe very specific details about the printing workflow. Information can be added to the file as it becomes available, and a typical job description may include number of pages, print quantity, trim page size, inks, required stock, binding type, and cover type. JDF is a vendor-neutral and device-independent format developed by a consortium of companies, including Adobe, Agfa, Heidelberg, and MAN Roland. It is maintained by CIP4. CIP4 stands for the International Cooperation for the Integration of the Processes in Prepress, Press and Postpress. JDF files can be generated in Adobe Acrobat.

How can I open a JDF file?

You need a suitable software like Delta to open a JDF file. Without proper software you will receive a Windows message "How do you want to open this file?" or "Windows cannot open this file" or a similar Mac/iPhone/Android alert. If you cannot open your JDF file correctly, try to right-click or long-press the file. Then click "Open with" and choose an application. You can also display a JDF file directly in the browser:. Just drag the file onto this browser window and drop it.

Online JDF Text Viewer

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Programs that open and convert JDF files:

Delta by JEOL
See the previous paragraphs to learn more about the main application. JDF files are often referred to as Delta data files because this type of file is primarily created or used by this software.
JAWS (Dictionary file) by Freedom Scientific
JAWS, which stands for Job Access With Speech, is a computer screen reader software developed by Freedom Scientific for individuals with visual impairment and unable to read computer screen content. JAWS stores dictionary files with a JDF extension. This file format is classified as Data. Related links: JAWS on Illinois, JAWS on sight and sound, JAWS on Wikipedia
Turok 2 (Game data file) by Iguana Entertainment
Turok 2 is a 3D first shooter adventure video game titled Seeds of Evil developed by Iguana Entertainment. Turok 2 is associated with the JDF game data files. This file format is classified as Data. Related links: Turok 2 on Wikipedia, Turok 2 on YouTube, Turok 2 on PlayStation

JDF file format details:

A file format defines how the data in the file is structured. The file format can be deduced from the file extension and the signature. File extension, signature and file format must match; otherwise errors will occur when the file is opened. When there is a problem with a file, the first step to solving it is to determine the file format. Our evaluation of the JDF files looks like this:

The JDF file extension is used very often and is mainly used by one program with a specific format. The following file formats are most commonly found in JDF files:

70% of all JDF files use the same file format, which have the signature JEOL.NMR. The content consists of illegible binary data, which can only be read and interpreted by the associated programs. The files are on average 290 KB in size and range from 250 KB to 550 KB. The file type is relatively new. Several words can almost always be found in the files, e.g. JEOL.NMR. Such JDF files store data about proton, carbon, single, pulse, dmso, cdcl, teaching and spms.
10% of all JDF files start with the bytes 1NAJ crucial for this file format. The contents of these files cannot be read by a human; only a computer program can interpret the data. The files are often between 17 MB and 73 MB in size. Several words can almost always be found in the files, e.g. 1NAJ and admin. An example of a file name is 00000000.JDF or 20180601.JDF.

All other JDF files (20%) have different formats, often, for example, Job Definition Format Job File. They are often associated with unknown, maltol, sample, chem, mannose, water or meoh. If you want to find out what your JDF file contains, drag and drop it onto this page.

Technical Data for JDF File Extension

File classification:

Data

Related files:

zip, jdr, pdf, swdf, pst, pix, jdt, cov, docx, png, brd, rar, jpeg, gz, h5, lic

The following listing is compiled from the database produced by the 'Associate This!' program, selected data from the main FILExt database and file extension information submitted by users.

ProgramID: AcroExch.JDFJobDef.1
EXEFile: %ProgramFiles%\Adobe\Acrobat 7.0\Acrobat\Acrobat.exe %1

ProgramID: AcroExch.JDFJobDef.1
EXEFile: %ProgramFiles%\Adobe\Adobe Acrobat 7.0\Acrobat\Acrobat.exe

ProgramID: AcroExch.JDFJobDef.1
EXEFile: %ProgramFiles%\Adobe\Acrobat\Acrobat\Acrobat.exe

ProgramID: AcroExch.JDFJobDef.1
EXEFile: %ProgramFiles%\Adobe\Acrobat 8.0\Acrobat\Acrobat.exe

ProgramID: AcroExch.JDFJobDef.1
EXEFile: %ProgramFiles%\Adobe\Acrobat\Acrobat.exe

ProgramID: AcroExch.JDFJobDef.1
EXEFile: %ProgramFiles%\Adobe\Acrobat 9.0\Acrobat\Acrobat.exe

Show all 6 listings To Top

a jdf Project file is a special file format by JEOL and should only be edited and saved with the appropriate software.

How to solve problems with JDF files

Associate the JDF file extension with the correct application.
Update your software that should actually open project files. Because only the current version supports the latest JDF file format. Search, therefore, e.g. on the JEOL manufacturer website after an available Delta update.
To make sure that your JDF file is not corrupted or virus-infected, get the file again and scan it with Google's virustotal.com.
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