Editing IrfanView (section)

==Features==
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 file format|BMP]], [[GIF]], [[JPEG]], [[JPEG 2000|JP2 & JPM]] (JPEG2000), [[Portable Network Graphics|PNG]] (includes the optimizer [[OptiPNG]]; [[APNG]] can be read), [[TIFF]], [[Raw image format|raw photo formats]] from digital cameras, [[ECW (file format)|ECW]] (Enhanced Compressed Wavelet), [[Windows Metafile|EMF]] (Enhanced Windows Metafile), FSH (EA Sports format), [[ICO (file format)|ICO]] (Windows icon), [[PCX]] (Zsoft Paintbrush), [[Netpbm|PBM]] (Portable BitMap), [[PDF]] (Portable Document Format), [[Portable graymap|PGM]] (Portable GrayMap), [[Netpbm format|PPM]] (Portable PixelMap), [[Truevision TGA|TGA]] (Truevision Targa), [[WebP]], [[Free_Lossless_Image_Format|FLIF]] (Free Lossless Image Format) and viewing of media files such as [[Adobe Flash|Flash]], [[Ogg]], [[Vorbis]], [[MPEG]], [[MP3]], [[MIDI]], and [[text file]]s.<ref>[http://www.irfanview.com/main_formats.htm "List of supported formats"].  Irfanview.com.  Retrieved 12 July 2010.</ref><ref name="Harris">{{Cite book| title=HTML, XHTML, and CSS All-in-One For Dummies |author=Harris, Andy| publisher=[[For Dummies]] |edition=2nd |page=107| isbn=978-0-470-53755-8 |year=2010 |access-date=9 September 2011 |url=https://books.google.com/books?id=-LdlRI0fT_UC&q=irfanview&pg=PA107}}</ref>

Image editing includes crop, resize, and rotate. Images can be adjusted by modifying their [[brightness]], [[Contrast (vision)|contrast]], [[Tint, shade and tone|tint]], and [[Gamma correction|gamma]] level<ref>{{Cite book| url=https://books.google.com/books?id=EKblq5NS4AAC&q=irfanview&pg=PA289 |title=Google Earth for Dummies |pages=289–290|last=Crowder |first=David A.| publisher=[[Wiley Publishing]] |location=Indianapolis |isbn=978-0-470-09528-7 |year=2007| access-date=23 June 2010}}</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">{{cite web |last1=Ellis |first1=Cat |last2=Marshall |first2=Carrie |title=IrfanView review |url=https://www.techradar.com/uk/reviews/irfanview |website=TechRadar |access-date=4 May 2020 |language=en |date=5 May 2017}}</ref>

A [[#Plugins|plugin]] allows IrfanView to support [[JPEG#Lossless_editing|lossless JPG operations]]: horizontal or vertical flip, [[Image_editing#Image_orientation|rotation]] by 90° increments, and [[Image_editing#Cropping_an_image|cropping]].<ref>[https://www.irfanview.com/plugins.htm "IrfanView Plugins"]. Irfanview.com.  Retrieved 1 September 2019.</ref><ref>[https://jpegclub.org/losslessapps.html "Lossless ''jpegtran'' applications"]. JPEGclub.org.  Retrieved 1 September 2019.</ref>

===Plugins===
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">{{Cite book|title=Photoshop Elements 8 for Windows: The Missing Manual| author=Brundage, Barbara |page=73 |publisher=[[O'Reilly Media]] / Pogue Press| year=2009| isbn=9781449379520 |access-date=23 June 2010 |url=https://books.google.com/books?id=uB5H3R_VvFwC&q=irfanview&pg=PA73}}</ref><ref name="Nelson">{{Cite book |last1=Nelson |first1=Sharon |url=https://books.google.com/books?id=1VX3G8lasuwC&pg=PA104 |title=The 2009 Solo and Small Firm Legal Technology Guide |last2=Simek |first2=John W. |last3=Maschke |first3=Michael C. |publisher=[[American Bar Association]] |year=2009 |isbn=978-1-60442-321-1 |page=104}}</ref>

===Search engine toolbar===
Prior to version 4.41 installer versions of IrfanView supported a number of [[browser toolbar]]s. Version 4.40 optionally installed the Amazon 1Button App (formerly the Amazon Browser bar).<ref name="old-history" />