What's New in version 4.51:

• Improved JPG save option: 'Set file size' (no RIOT PlugIn needed)
• New options in IrfanView Shell Extension (PlugIns website)
• Support for animated WebP files
• Some fixes (Zoom box text, EXE/DLL icon loading)
• Several PlugIns are changed/updated, please install the newest versions

What's New in version 4.50:

• IrfanView and many PlugIns ported to Unicode!
• The INI file will be converted to Unicode if you call the 'Properties' dialog
• IrfanView will NOT run on Win9x anymore
• Support for iPhone PNG files (Formats PlugIn, thanks to Jongware)
• Move selection with: CTRL or SHIFT + right mouse button (Y or X axis only)
• New option in Extract Pages/Frames dialog: Set page/frame range
• Some fixes in the Print dialog
• New text pattern: $m = show number of megapixels
• New Thumbnails sort menu: Sort by Megapixels
• Adjust print preview image to color/bw printer settings
• Wallpaper save format changed to PNG (Win8 and later)
• New zooming method: Mouse wheel alone, if 'Browsing->View other files' disabled
• New command line option: /hotfolder='folder' => start Hotfolder option with a specific folder
• ANI format moved to FORMATS PlugIn
• JP2 PlugIn loading bug fixed (Talos Advisory TALOS-2017-0310)
• FPX/RLE/DJVU/ANI/SVG PlugIn loading bugs fixed (thanks to Lin Wang)
• Tools PlugIn EXE-loading problem fixed (thanks to Cody Sixteen and Lin Wang)

What's New in version 4.42:

• New File menu: Save Selection as (Hotkey: CTRL + SHIFT + B)
• New option in Capture dialog: Show timer countdown
• New option in Export Tiles dialog: Extract all pages from multipage files
• New option in Fine Rotation dialog: Select 'best' old image
• New option in Print dialog: No image overflow on page
• New HTML-Export dialog option: Copy extra files to destination folder
• (prepare a 'copy_files.txt' file with filenames)
• Some PCX/BMP/PPM loading bugs fixed (thanks to Moshe Kaplan)
• Improved FITS format loading
• New text pattern: $R = image aspect ratio (width/height)
• New hotkey: CTRL + Click into selection = clear selection
• Some minor fixes (Thumbnails/folder scan)
• Some workarounds for Windows-10 bugs/issues (Installer signature, Associations)
• Several PlugIns are changed/updated, please install the newest versions

What's New in version 4.41:

• 64-bit version: Use 32-bit TWAIN drivers if 64-bit drivers not installed
• New dialog/GUI on Windows tablets ('2 in 1', Thanks to Arun Anbu from Intel)
• New hotkey: SHIFT + Tab: Start/End Tablet mode dialog
• New hotkey: CTRL + Insert: Edit->Copy
• New Slideshow hotkey: Q = Pause/Resume a timer slideshow
• New option for /info command line: write CSV file: /info=infofile.csv
• Added PlugIns-Installer options for: /silent and /folder (Check FAQs page)
• 'Amazon 1Button App' offer removed
• Some fixes (Auto color correction, PNG compression, UNC-Paths in 64-bit)

What's New in version 4.40:

• The 64-bit version of IrfanView is available: http://www.irfanview.com/64bit.htm
• The 64-bit version is faster for very large images (25+ Megapixels)
• Option to support IrfanView by installing 'Amazon 1Button App' (OPTIONAL !)
• Support for animated PNG files (APNG)
• EXIF date (taken) sort menu added to main window sort menu
• New Sort dialog option: Sort by EXIF date (date taken)
• New toolbar item: Zoom box with common values (Properties->Toolbar)
• (You can also write a new zoom value and press Enter)
• New PDF PlugIn (enable in Properties->PlugIns->PDF)
• New in Thumbnails window: Export image tiles for selected files (batch mode)
• Load cursors and bitmaps from EXE/DLL files (Thanks to Jason Hood)
• Option to set a custom font for TXT loading (Properties->Browsing/Editing)
• Option to use left mouse button for fullscreen scrolling (for touch screens)
• The 2 GB limit for EXE/SCR-Slideshow files changed (now: 4 GB, Windows EXE limit)
• New Fine Rotation method/option added (faster for very large images)
• New option for the Red-Eye-Correction effect (dialog): Set gray intensity
• Some fixes in the Paint PlugIn
• New hotkey: CTRL + SHIFT and '+' or '-' to change GIF/ANI/PNG animation speed
• New hotkey: CTRL + SHIFT + mouse click: Create selection based on clipboard image
• New button in Batch processing dialog: Pause/Resume
• New button in Advanced batch dialog: Get current selection for cropping
• You can Drag&Drop (or Send To) multiple files to IrfanView shorcut or window
• PlugIns 'Metadata' and 'JPG-Transform' included in the IrfanView installer
• New command line option: /file=filename(s)
• => set the input filename(s) (at the end of the command chain)
• New command line option: /display=(x,y,w,h,zoom,scrollX,scrollY)
• => set position, size, zoom and scroll position of the window and image
• Command line: wildcards support for /extract (see 'i_options.txt')
• Command line: /panorama, /multitif and /multipdf can use 'filelist=txtfile'
• (see 'i_options.txt' for examples)
• Several PlugIns are changed/updated, please install the newest versions

What's New in version 4.38:

• New Options menu/feature: Export image tiles (split image)
• New Options menu: Hotfolder (Watch folder and show new images)
• New view modes in Thumbnails window: Tiles, Details and List mode
• New feature: (new) 'IrfanView Shell Extension' available on PlugIns website
• (= adds Context menu with some IrfanView operations to Windows Explorer)
• New options in the 'Adobe 8BF filters' dialog (Thanks to Frank/jazzman)
• Improved speed in the LCMS (Color Management) PlugIn
• Added support for old formats like: Amiga, Atari, C64, ZX Spectrum etc.
• New Print dialog features: Borderless print, Negative positions, better preview
• New command line option: /makecopy, a flag for /convert
• => if destination file exists, save new file as copy: (1), (2), (3) etc.
• Option to add max. 10 external editors (for advanced users): Properties->Misc
• Option to Drag&Drop current file to other programs: SHIFT + left mouse + drag
• New Print dialog option: Always use default printer at dialog start
• New hotkey: CTRL + SHIFT + N = Negative image (all channels)
• Better support for high resolution screens (high DPI)
• Several PlugIns are changed/updated, please install the newest versions

What's New in version 4.37:

• New options in Resample dialog: Use Resample filters for shrinking; Gamma fix
• Improved GIF animations
• Features from Adobe-8BF PlugIn (8BF_FILTERS.DLL) moved to Effects PlugIn
• New Image menu: Adobe 8BF PlugIns; with new fixed and dynamic PlugIns like
• Perspective Transformations and SmartCurve - big thanks to PlugIn authors
• Option to set custom folder for Adobe 8BF PlugIns menu (Properties->PlugIns)
• Added Drag&Drop from Thumbnails window to another programs
• New menu: File->Open Recent Files (can be disabled in Properties->Misc)
• New option in Advanced Batch dialog: Don't shrink bigger images
• Added Center option for Crop in Advanced Batch dialog and /crop
• Replace Color option can work on selections
• GIF bug fixed
• MrSID bug fixed
• Japanese folder name bug fixed
• Several PlugIns are changed/updated

What's New in version 4.36:

• New Lossless JPG Dialog option: Rebuild EXIF-Thumbnail
• Update of EXIF-Thumbnail on JPG-Lossless-Crop
• Option to Edit EXIF date/time (Options menu or Thumbnails window for batch mode)
• Improved color accuracy in 'Decrease color depth' function
• Added 'Best quality' option in 'Decrease color depth' dialog
• New (Freeware) PlugIn for DWG format - thanks to BabaCAD-Software guys!
• New feature: Replace Color (Image menu and Advanced Batch dialog)
• New feature: Create tiled image (Image menu)
• New effects PlugIn: Filter Sandbox (Image->Effects menu, JewelScript)
• Option to invert single color channels only (Image menu)
• New Edit menu option: Show Grid (see also Properties->Editing for cell size)
• New Slideshow Burning PlugIn for WinXP SP3 or later
• New display options added: Fit small image side to window/desktop
• Profiles option added to Batch Rename dialog
• New Advanced Batch dialog option: Set new image size in MegaPixels
• New options for Fine Rotation effect: Keep old image size and background
• New feature in Color Corrections dialog: Change White Balance
• New effect in 'Image->Add border/frame' dialog: Inside fading frame
• New Thumbnails menu: Extract pages from selected multipage files
• New Add Text dialog effect: Filled outline text
• Negative and Grayscale menus can work on selections
• Improved selection handling with large zooms
• Updated Icons-Plugin (bigger/nicer icons, thanks to Florian Kilzer)
• New hotkeys: CTRL + SHIFT + left/right arrow: Fine rotation, 0.10 deg
• New hotkeys: CTRL + SHIFT + up/down arrow: Fine rotation, 0.05 deg
• Batch-Scan dialog: some placeholders can be used for the filename
• New text placeholders to add $ and | characters
• New (admin) INI file option: Set save formats in Save-As dialog
• New hotkey for slideshow mode: SHIFT + Z = show all or portrait/landscape images
• Hotkey: G = stop or resume GIF/ANI animation (browse frames/pages if stopped)
• DCX/ANI loading bug fixed
• FPX bug fixed
• Added reading support for 32-bit (96 BPP) TIF images
• New command line option: /multipdf (same syntax as /multitif)
• Several PlugIns are changed/updated, please install the newest versions

What's new in version 4.32:

• New feature: Add watermark image (Edit menu and Advanced batch dialog)
• Improved zooming: CTRL + wheel (keep mouse coordinates) and centered zoom
• Support for WebP format (Weppy format, PlugIn, reading + saving)
• Support for PDN format (Paint.NET format, PlugIn, thanks to ComSquare AG)
• Support for XCF format (GIMP format, PlugIn, thanks to ComSquare AG)
• Face Detection Plugin (Thumbnails window, thanks to MulticoreWare guys)
• New JPG save option: Try to save with original (estimated) JPG quality
• Improved/changed sort menus (XP/natural order)
• New batch rename option: Run test rename
• New Thumbnails menu: Refresh selected thumbs
• Batch dialog, Output directory: Placeholders are now allowed
• New Properties dialog: Zoom / Color management
• New expert zoom option: Edit table with fixed zoom values (Properties->Zoom)
• New fullscreen options: Center image, Text layer (Properties->Fullscreen)
• New option in 'Create multipage TIF/PDF' dialog: Load filenames from TXT file
• New options in JPG IPTC/Comment dialogs: Allow Unicode PlugIn to change text
• New command line option: /cmdexit (close current IrfanView after command line)
• TIF with some SGILog compressed images fixed
• New special INI option to hide common folders in Open/Save dialog (see FAQs)
• New hotkey: CTRL + SHIFT + K = Keep Scroll position