PJPEG File

Files with the PJPEG extension belong to the category of graphic files.

What do PJPEG files contain?

Content of files with the PJPEG extension includes raster images. The letter P in the name indicates the progressive features of this format compared to the original JPEG. In PJPEG files you can find:

• bitmap images,
• photos,
• drawings,
• diagrams,
• 2D graphics.

What are PJPEG files used for?

Files with the PJPEG extension were used in the not too distant past, when internet connections did not yet have the modern bandwidth. Extended functionalities of PJPEG compared to JPEG allowed for a gradual sharpening of the graphic file's view. On slow connections, images in PJPEG files would slowly appear in the browser window, but from the very beginning of loading, the user could see an outline of the graphic. With the receipt of additional data, the bitmap in the PJPEG file became more detailed, until the final effect. Thus, files with the PJPEG extension were used to enhance the appearance of web pages, which without their application would remain visually unattractive for the user due to slow data loading on low-bandwidth connections.

Can I open PJPEG files?

Currently, files with the PJPEG extension are no longer so commonly used, because the improvement of network infrastructure parameters has practically eliminated long image loading times. Nevertheless, files with the PJPEG extension can still be encountered. To be able to open them, it is necessary to manually change the extension from PJPEG to JPG, and then double-click the modified file. The default application in the system associated with graphic files should have no problems opening such a modified PJPEG file. To change files with the PJPEG extension to other popular graphic formats, special converters can also be used. Some of them operate online, allowing the user not to have to install software to handle files with the PJPEG extension on their computer.