OPF File Extension

OPF file extension is created by IDPF, also known as Open Packaging Format File. OPF has been classified as eBook Files. This file is saved in an XML format. You can view the XML structure and contents of the file in a text editor<\/a>. You can open OPF files in Adobe Digital Editions program.

Open Packaging Format File Type

What is a OPF File Type?

All OPF files are saved in XML format. The Open Packaging Format also requires a second .NCX XML file that stores the table of contents for the EPUB eBook.

Free online OPF Tools & Apps

We have also the free online .OPF (Open Packaging Format File) file extension apps that can allow to view, edit, convert from to OPF, merge, split and compare the OPF files without installing anything on your system. Please click on the links to explore the complete list of details for each required feature.

OPF=9798 Converter

Open OPF=9798

Edit OPF=9798

Compare OPF=9798 Files

Merge OPF=9798 Files

Split OPF=9798 Files

OPF=9798 Metadata Viewer

OPF Files Common Issues

There are few common issues with the Open Packaging Format File .OPF=9798 File Extensions while opening the .OPF=9798 files on Windows and MacOs, we have solution to those issues such as:

Can't Open OPF Files?

1. You must have supported software programs installed for Open Packaging Format File on your system such as Adobe Digital Editions.
2. Associate default Adobe Adobe Digital Editions program for *.opf (Open Packaging Format File) files.
   
   

   Associate OPF Default Program on Windows

   1. Right-click a *.OPF (e.g example.opf) file and click Open With.
   2. In the Open with dialog box, click Adobe Adobe Digital Editions program Or click Browse to locate the program (*.exe) that you want.
   3. Select check box for Always use this app to open .opf files.
   
   

   Associate OPF Default Program on MacOs

   1. Click *.OPF (e.g example.opf) file and click information -> Open With.
   2. In the programs list, click Adobe Adobe Digital Editions program Or other appropriate program that you want.
   3. Confirm Change for all... and Contine.
   4. A message will appear "This change will be applied to all files with .Adobe Digital Editions extension. By clicking Continue you confirm your selection", click Contine to apply changes.

Related OPF File Extensions

OPF default file extension is .OPF and other similer related extensions are:

All Platform Software Programs for OPF File Extension

List of all softwares that can open the OPF files on each platforms such as Windows, Mac, iOS, Linux, Web and Android, you may click the each software link for more details for other supported formats for each software and the verified direct download links for each software with complete lisensing details.

Open OPF File on Windows

	Software	License	Developer
	Cadence OrCAD PCB Designer 000 for Windows	Free Trial	Cadence OrCAD PCB Designer
	Calibre 3 for Windows	Open Source	Calibre
	Adobe Digital Editions 4 for Windows	Freeware	Adobe
	Geometer Plus FBReader 0.12 for Windows	Freeware	Geometer Plus
	KDE Okular .19 for Windows	Open Source	KDE
	Kofax OmniPage ULTIMATE 19 for Windows	Commercial	Kofax

Open OPF File on Mac OS

	Software	License	Developer
	Calibre 3 for MacOs	Open Source	Calibre
	Adobe Digital Editions 4 for MacOs	Freeware	Adobe
	Geometer Plus FBReader 0.12 for MacOs	Freeware	Geometer Plus
	KDE Okular .19 for MacOs	Open Source	KDE

Open OPF file on Linux

	Software	License	Developer
	Calibre 3 for Linux	Open Source	Calibre
	Geometer Plus FBReader 0.12 for Linux	Freeware	Geometer Plus
	KDE Okular .19 for Linux	Open Source	KDE

Open OPF file on Web

Open OPF file on iOS

	Software	License	Developer
	Adobe Digital Editions 4 for iOS	Freeware	Adobe
	Geometer Plus FBReader 0.12 for iOS	Freeware	Geometer Plus

Open OPF file on Android

	Software	License	Developer
	Adobe Digital Editions 4 for Android	Freeware	Adobe
	Geometer Plus FBReader 0.12 for Android	Freeware	Geometer Plus

About Licensing

1. Free Trial This software are often used for an attempt period, like 14 days, before requiring payment. Some trial versions have a reduced feature set.
2. Free This software is liberal to use. Examples include open-source , freeware software, like free programs supported by advertising.
3. Free⁺ This software is liberal to download and use, but contains in-app purchases (IAP) to unlock additional content or functionality.
4. Paid This software must be purchased so as to use it. it's going to be offered as a perpetual license or ongoing subscription.
5. Included with OS This software is bundled with an OS , like Windows, macOS, or Android.

About OPF - Open Packaging Format File

Listed file converters are from the wide range of online file converter.

These are the most polular file/document converters based on the user's review and usage on the FileProInfo.