J2K File Extension
JPEG 2000 Image
- File Type j2k
- Developer Joint Photographic Experts Group
- Popularity
- Application FastPictureViewer Pro
- Category Raster Image Files
- Format Binary
What is a J2K file?
JPEG 2000 Image, identified by the J2K extension, is a Raster Image Files type and includes 575 files.
J2K file support extends to various operating systems, including Mac OS, Linux and Windows. If you need to view a J2K file, you can use one of 4 programs, such as XnView, FastPictureViewer Pro and Xara Page & Layout Designer.
Programs that support J2K files
Mac OS
Linux
Online Services
How to open a J2K file?
If you’re having difficulty opening a J2K file, it is often due to not having the correct software. To solve the problem, choose a compatible program from the list. Then follow the link to the official developer site, download the software, and install it on your device.
When it comes to opening and working with J2K files, XnView, FastPictureViewer Pro and Xara Page & Layout Designer are the top choices for users. If you need the newest version of FastPictureViewer Pro, just access the Rietschin website. From there you can download the installer compatible with all systems.
Following installation, J2K files should be automatically opened with FastPictureViewer Pro.
Set FastPictureViewer Pro as the default J2K program
Changing Default Programs in Windows
- Right-click your J2K file, then navigate to the "Open With" option and click "Choose Another Application" to continue;
- In the pop-up window, select the FastPictureViewer Pro application;
- Check the "Always use this application" checkbox, and then click "OK" to apply the selected application as the default for opening J2K files.
Change Default Program on Mac
- Right click or Control + left click on the desired J2K file;
- Select "Open in application" and click "Other";
- Look at the bottom of the window, where you will see the "Enable" menu. "Recommended Programs" will be selected as the default option;
- Within this menu select "All Programs" and navigate to FastPictureViewer Pro. Check the box next to "Always open in app" to make sure it’s the default option.
Convert to and from J2K
Keep in mind that converting a J2K file may introduce some limitations, but the original format can often be restored.
Using offline applications such as Picture Resize Genius, you can convert J2K files to various formats without losing data quality.
Converting Files to J2K Format
Solve problems with J2K files
When issues arise with J2K files, they can generally be fixed with small software tweaks. Use the troubleshooting tips below to help resolve them.
What can lead to sudden FastPictureViewer Pro crashes?
FastPictureViewer Pro crashes can occur due to outdated software versions. To mitigate this, install the latest updates for Rietschin products.
Restarting your computer will solve many common problems, which is why it’s the first thing you should do before changing any settings related to the software.
What is the recommended approach to repair a damaged J2K file?
Open the damaged J2K file with a recovery program, and then select the "Repair" menu item to start the repair process. Allow the recovery process to complete, which will automatically repair the damaged raster image files.
What are the telltale signs of a corrupt J2K file?
Common indications of damaged J2K raster image files are:
- Unexpected expansion of the total size of the J2K file;
- Opening the file in FastPictureViewer Pro or other programs causes them to hang or crash;
- Opening the file results in an error or a failed attempt;
- While working with the file, error messages appear;