IrfanView was the first Windows graphic viewer WORLDWIDE with Multiple (animated) GIF support.
One of the first graphic viewers WORLDWIDE with Multipage TIFF support.
The first graphic viewer WORLDWIDE with Multiple ICO support.

Features of IrfanView 4.10 :

- Many supported file formats
- Multi language support
- Thumbnail/preview option
- Slideshow (save slideshow as EXE/SCR or burn it to CD)
- Show EXIF/IPTC/Comment text in Slideshow/Fullscreen etc.
- Support for Adobe Photoshop Filters
- Drag & drop support
- Fast directory view (moving through directory)
- Batch conversion (with image processing)
- Email option
- Multimedia player
- Print option
- Change color depth
- Scan (batch scan) support
- Cut/crop
- IPTC editing
- Effects (Sharpen, Blur, Adobe 8BF, Filter Factory, Filters Unlimited, etc.)
- Capturing
- Extract icons from EXE/DLL/ICLs
- Lossless JPG rotation
- Many hotkeys
- Many command line options
- Many PlugIns
- Only one EXE-File, no DLLs, no Shareware messages like "I Agree" or "Evaluation expired"
- No registry changes without user action/permission!
- and many more

Changes from IrfanView 4.00 to IrfanView 4.10 :

- 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
- Some bugs fixed (IFF/PCX/JP2 loading, GIF animations, Palette import)