6 votes
PE4 File - What is a .pe4 file and how do I open it?
Learn about .PE4 files and view a list of programs that open them.
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Overview
What is a PE4 file? Archive or cache of thumbnail images used by Ulead Photo Explorer; contains small versions of images stored in a photo album; makes it possible to quickly browse through the images in an album.
More Information Ulead PhotoImpact is a discontinued image editing program used primarily to edit photographs. Version 4 of PhotoImpact was released in 1997. PhotoImpact version 4 (and the fourth version of other Ulead programs, such as PhotoExplorer and iPhotoPlus) cached thumbnails of images that users had opened or viewed in a file named imageiio.pe4 . It also cached image metadata in a file named imaginfo.pe4 . Doing so allowed PhotoImpact to quickly load and display thumbnail images to users (in areas such as the app's sidebar file explorer).
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In-Depth
.PE4 File Extension
2 file types use the .pe4 file extension.
Photo Explorer Thumbnail Archive
| Developer | Ulead |
| Popularity |
3.3 | 6 Votes |
What is a PE4 file?
Archive or cache of thumbnail images used by Ulead Photo Explorer; contains small versions of images stored in a photo album; makes it possible to quickly browse through the images in an album.
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Programs that open or reference PE4 files
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Ulead Photo Explorer
Free Trial
Category: Raster Image Files
Updated: April 6, 2007
PhotoImpact Thumbnail Cache
| Developer | Ulead |
| Popularity |
2.0 | 3 Votes |
A PE4 file may also be a thumbnail cache or accompanying metadata file created by version 4 of Ulead PhotoImpact. PhotoImpact automatically creates a pair of PE4 files to store thumbnails of a user's images and information about those images. This allows PhotoImpact to efficiently display organized thumbnail galleries.
More Information
Ulead PhotoImpact is a discontinued image editing program used primarily to edit photographs. Version 4 of PhotoImpact was released in 1997.
PhotoImpact version 4 (and the fourth version of other Ulead programs, such as PhotoExplorer and iPhotoPlus) cached thumbnails of images that users had opened or viewed in a file named imageiio.pe4 . It also cached image metadata in a file named imaginfo.pe4 . Doing so allowed PhotoImpact to quickly load and display thumbnail images to users (in areas such as the app's sidebar file explorer).
Common PE4 Filenames
Imageiio.pe4 - Stores a PhotoImpact 4 thumbnail cache.
Imaginfo.pe4 - Stores metadata about the thumbnails in a user's imageiio.pe4 file.
How to open a PE4 file
PE4 files are not meant to be opened by users. Ulead PhotoImpact loads PE4 files, and the thumbnails they contain, automatically as needed.
Programs that open or reference PE4 files
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Ulead PhotoImpact
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Discontinued
Free Trial
Category: Raster Image Files
Updated: August 16, 2023