JPEG marker type errors can be a real nuisance, making it impossible to open an image. They can occur due to numerous factors, some of which include corruption of a file or incorrect compression being utilized. This article will provide a guide on how to fix an unknown or invalid JPEG marker type error.
How does a JPEG Marker Type Error Occur?
A JPEG marker type error occurs when a JPG/JPEG file attempts to open but fails with an error that states there is an unknown or invalid marker type. This can be caused when the JPEG data is corrupted due to a hardware failure, power failures, or transfer errors from FTP. A JPEG compaction error can also cause this.
What are the Symptoms of a JPEG Marker Type Error?
An unknown or invalid JPEG marker type error is usually quite obvious, as the file will fail to open. The exact error message that is displayed will vary, but often it will ppear as “invalid JPEG marker type is found.”
How to Fix an Unknown or Invalid JPEG Marker Type Error
Method 1: Use Automated Repair Software
The easiest way to fix a JPEG marker type error is to utilize an automated repair program, such as Stellar Phoenix JPG Repair. Some programs will allow you to preview the repairable JPG before attempting the repair. After downloading, however, you should create a backup of the original image, just in case the repair software does not work as expected.
Method 2: Remove the Extra Hex Data
In some cases, an invalid or unknown JPEG marker type error can be resolved simply by opening the JPG/JPEG file in a hexadecimal editor and removing the extra bytes. This method might not always be viable and could lead to further corrupt file, so it is advisable to make a backup of the original file first.
Method 3: Reduce the File Size
If the first two methods do not work, you may want to try reducing the size of the image. This can often times fix an invalid or unknown JPEG marker type error, as it can remove the extra bytes. For example, if the file is over 2MB, reducing it to around 8-12MB should be enough to resolve the issue.
Q: How do I determine if there is an invalid or unknown JPEG marker type error?
A: If the image file fails to open properly, then it is likely that there is an invalid or unknown JPEG marker type error present.
Q: Should I use the repair software first or try hexadecimal editing first?
A: It is usually safest to use an automated repair program first, as they are specifically designed to address known issues. If that does not work, then attempting hexadecimal editing is a good next step.
Q: Is it safe to reduce the file size?
A: Yes, in most cases reducing the file size is safe. It is recommended to make a backup of the original file though, just in case something goes wrong.
Q: Is there any way to prevent an invalid or unknown JPEG marker type error from occurring?
A: The best way to prevent an invalid or unknown JPEG marker type error is to ensure that the hardware you are using is reliable, that the JPEG data is not corrupted, and that the compaction is correct when saving the file. Additionally, making backups of important files can also be beneficial.