IrfanView是一個用來取代ACDSee與Windows內建的圖檔預覽程式…等看圖軟體的免費軟體，不但開啟速度快，而且支援數十種圖檔格式，還內建數種超實用的圖片特效功能與批次轉檔、更名功能，是Windows電腦中絕對必裝的免費軟體唷！
軟體名稱：IrfanView
軟體版本：4.10
官方網站：http://www.irfanview.com/
軟體下載：按這裡下載
中文語系：按這裡（解壓縮後放到C:Program FilesIrfanViewLanguages資料夾）
4.1版更新說明：
Version 4.10 ( – CURRENT VERSION – ) (Release date: 2007-10-15)
*New PlugIn: Paint (Edit menu, Hotkey: F12, thanks to Matteo Italia!)
It allows IrfanView to paint lines, circles, arrows, straighten image etc.
*Support for embedded color profiles in JPG/TIF (Properties->Viewing)
LCMS PlugIn, thanks to Marti Maria
*New command line option: /advancedbatch (Apply advanced batch options to image)
Allows many image operations, add text etc.
*Lossless JPG Crop added (Menu: Options or Thumbnails (batch mode))
*Added option to tag/mark files during browsing (window or fullscreen mode):
Hotkeys: X = tag file, SHIFT+X = untag file, SHIFT+Q: show tagged files in Thumbnails
*Support for FLV format (Flash PlugIn, thanks to Remio)
*Histogram feature added (Menu: Image, Hotkey: SHIFT+H)
*Zoom calculation changed: relative, based on previous zoom value
*Auto adjust colors works with selections (Thanks to Andras Horvath, www.log69.com)
*Option to save values from “Enhance Colors” dialog
*New effects added: Green and Yellow eye reduction (Effects browser dialog)
*Option to keep current scroll position for the next image (Menu: View)
*Support for HDP/WDP format (Microsoft HD Photo, PlugIn)
*Save support for JNG format (Thanks to Pavel Demchuk)
*New GUI for batch/slideshow dialogs
*Custom selection dialog uses current selection at start, if available
*New compression options in PDF export (Thanks to ComSquare AG)
*New loading options for normal RAW files (Thanks to Sergey Fokin)
*Fullscreen options can be changed during fullscreen mode
*Browsing: if CTRL pressed, the file index increases/decreases by 5 (default: 1)
*3 external editors are possible now (Properties->Misc 3)
*New option for Import palette: Use nearest color (Properties->Misc 3)
*
Changes in print option Scale (original image size is used as input)
*New print option for multipage images: Print odd or even pages
*Some changes/optimizations in HTML templates
*CTRL+A selects the whole image in the main window
*Several PlugIns are changed/updated, please install the newest versions
http://www.irfanview.com/plugins.htm
*Some bugs fixed (IFF/PCX/JP2 loading, GIF animations, Palette import)