The program is named for after its creator, Irfan Skiljan of Bosnia and Herzegovina, and is pronounced /iːr.fæn.vjuː/. IrfanView works under all modern versions of Microsoft Windows (i.e. Windows 95 to Vista; Microsoft tested version 3.98, which was on the official Vista software list). It supports numerous file formats including: image formats such as BMP, GIF, JPEG, PNG (includes the optimizer PNGOUT), TIFF, non-image media files such as Flash, (Ogg) Vorbis, MPEG, MP3, MIDI, and text files.
After version 3.92, the installer could choose to also install an eBay toolbar in order to support the developer. In version 3.92, adding the toolbar was selected at installation by default, and the program was criticized by some as containing spyware. The option was not selected in version 3.97, and was replaced with an option to install Google Desktop Search from 3.98.
The IrfanView logo and mascot is a flattened roadkill cat. The 16px icon has tire tread marks across the caricature; the 32px icon is this "non tire tread" version; and the 48px icon has a gradient across the cat's body. The author of the software does stress, however, that he bears no ill will towards cats. In fact, the IrfanView website pictures him holding a cat.
Irfanview can be downloaded directly to a U3 compatible device.
IrfanView can also be used to create icons by converting common graphic files into .ico format. It also supports Adobe-compatible 8bf image processing filters, including many freely downloadable ones, though its ability to apply them to portions of an image is limited compared to full-scale image editors.
It can crop, resize, and rotate images. Images can be adjusted by modifying the brightness, contrast, tint, gamma level, and so forth, and by converting them between formats. Many of these changes can be applied to multiple images in one operation using batch processing.
IrfanView can direct the active image to open in an external graphics editor (Adobe Photoshop, for example) if the user has one installed.
JPG_TRANSFORM,which allows some lossless transforms of JPEG images. For a free alternative, see
jpegtranand the associate Jpegcrop.
Also, IrfanView can't open files with names having special characters different than current language system settings, but it can if you change system settings targeting file name language (e.g. set system to chinese to open files with chinese names). From version 4.20 IrfanView cames with a workarround plugin to solve this issue.
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