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IrfanView (Template:IPAc-en) is an image viewer, editor, organiser and converter program for Microsoft Windows.<ref name="pcworld">Template:Cite magazine</ref><ref name="lifehacker">{{#invoke:citation/CS1|citation |CitationClass=web }}</ref><ref name="techrepublic">Template:Cite magazine</ref> It can also play video and audio files, and has some image creation and painting capabilities. IrfanView is free for non-commercial use; commercial use requires paid registration.<ref name="pcworld" /> It is noted for its small size,<ref name="lifehacker" /> speed,<ref name="lifehacker" /> ease of use, and ability to handle a wide variety of graphic file formats. It was first released in 1996.<ref name="techrepublic" />
IrfanView is named after its creator, Irfan Škiljan, from Jajce, Bosnia and Herzegovina, living in Vienna.<ref name="about">{{#invoke:citation/CS1|citation |CitationClass=web }}</ref> The current version of IrfanView, 4.70, works under all versions of Windows from Windows XP to Windows 11. Version 4.44 and older versions were compatible with Windows 95/98/Me<ref name="techrepublic" /><ref name="MStest">{{#invoke:citation/CS1|citation |CitationClass=web }}</ref> and can also be run in Linux under Wine<ref name="techrepublic" /><ref>{{#invoke:citation/CS1|citation |CitationClass=web }}</ref> and in macOS using WineBottler.<ref name="techrepublic" /><ref>{{#invoke:citation/CS1|citation |CitationClass=web }}</ref>
FeaturesEdit
IrfanView is specifically optimized for fast image display and loading times. It supports viewing and saving of numerous file types including image formats such as BMP, GIF, JPEG, JP2 & JPM (JPEG2000), PNG (includes the optimizer OptiPNG; APNG can be read), TIFF, raw photo formats from digital cameras, ECW (Enhanced Compressed Wavelet), EMF (Enhanced Windows Metafile), FSH (EA Sports format), ICO (Windows icon), PCX (Zsoft Paintbrush), PBM (Portable BitMap), PDF (Portable Document Format), PGM (Portable GrayMap), PPM (Portable PixelMap), TGA (Truevision Targa), WebP, FLIF (Free Lossless Image Format) and viewing of media files such as Flash, Ogg, Vorbis, MPEG, MP3, MIDI, and text files.<ref>"List of supported formats". Irfanview.com. Retrieved 12 July 2010.</ref><ref name="Harris">Template:Cite book</ref>
Image editing includes crop, resize, and rotate. Images can be adjusted by modifying their brightness, contrast, tint, and gamma level<ref>Template:Cite book</ref> manually or automatically, and by converting them between file formats. Many of these changes can be applied to multiple images in one operation using batch processing.<ref name="TechRadar">{{#invoke:citation/CS1|citation |CitationClass=web }}</ref>
A plugin allows IrfanView to support lossless JPG operations: horizontal or vertical flip, rotation by 90° increments, and cropping.<ref>"IrfanView Plugins". Irfanview.com. Retrieved 1 September 2019.</ref><ref>"Lossless jpegtran applications". JPEGclub.org. Retrieved 1 September 2019.</ref>
PluginsEdit
IrfanView uses plugins to handle several additional images, video, and sound formats and to add optional functionality such as filter processing or other program features.<ref name="irfanview-plugins" /><ref name="techrepublic" /> With its diverse set of format plugins, the program has been recommended for viewing obscure image formats, or corrupted files, which commercial photo editing software cannot read.<ref name="Brundage">Template:Cite book</ref><ref name="Nelson">Template:Cite book</ref>
Search engine toolbarEdit
Prior to version 4.41 installer versions of IrfanView supported a number of browser toolbars. Version 4.40 optionally installed the Amazon 1Button App (formerly the Amazon Browser bar).<ref name="old-history" />
ReceptionEdit
Irfanview has been positively reviewed as "really good" for easily and rapidly viewing and manipulating images, with its editing and drawing tools.<ref name="Harris2">Template:Cite book Features extensive introduction and opinion.</ref> Other writers have focused on its ability to open a wide variety of image formats.<ref name="Brundage"/><ref name="Nelson"/> In a series of image quality tests conducted in 2004, compared with commercial image compressors and Adobe Photoshop 7, Irfanview 3.91 produced "consistently better images than the Adobe Photoshop JPEG encoder at the same data rate", and its JPEG2000 compression quality "closely followed" the best codec, JasPer."<ref>Template:Cite book</ref> According to IrfanView's official website, since 2003, IrfanView has been downloaded over 1 million times per month. One independent review in 2017 described Irfanview, as "the Swiss Army Knife of image viewers".<ref name=TechRadar/>
AuthorEdit
Irfan Škiljan graduated from the Vienna University of Technology. In a 2006 interview, then 32-year-old Škiljan said that he was able to more or less live off the software, generating income with the sale of licenses for commercial users and of special versions for different customers.<ref>Template:Cite journal (English tr.)</ref>
PronunciationEdit
The author claims that the software is pronounced as "EarfanView"; it is named after himself and is an Islamic Arabic name, Irfan.<ref name="about" />
Logo/mascotEdit
According to Škiljan, the IrfanView logo and mascot is a "road cat" (there is a tire track across the smallest and the biggest icon for Windows Explorer, as well as the version for Microsoft Store)<ref>{{#invoke:citation/CS1|citation |CitationClass=web }}</ref><ref>{{#invoke:citation/CS1|citation |CitationClass=web }}</ref> but that he "likes cats", and the icon is "a joke" – the IrfanView website pictures him holding a white domestic cat.<ref name="about"/>