IrfanView 4.10 Online Manual
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A full-featured graphics viewer for Windows IrfanView is a fast and simple image viewer and editor that supports all major graphic formats, including BMP, DIB, JPEG, GIF, animated GIF, PNG, PCX, multipage TIFF, TGA, and more.
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Overview
- File Menu
Open- Reopen
- Open with external editor
- Open as
- Thumbnails
- HTML export
- Slideshow
- Slideshow from CD
- Batch Conversion/Rename
- Search files
- Rename File
- Move File
- Copy File
- Delete File
- Save
- Save As
- Save, Options JPEG/GIF
- Save, Options JPEG2000
- Save, Options JPM
- Save, Options LDF
- Save, Options LWF
- Save, Options PNG / PBM/PGM/PPM / ICO
- Save, Options TIFF
- Print
- Select TWAIN Source
- Acquire/Batch scanning
- Copy Shop
- MRUDs
Exit
- Edit Menu
- Image Menu
- Information
- Create New (empty) image
- Create Panorama image
- Rotate
- Vertical Flip
- Horizontal Flip
- Resize/Resample
- Canvas size
- Increase Color Depth
- Decrease Color Depth
- Convert to Greyscale
- Negative
- Enhance colors
- Histogram
- Auto color correction
- Red Eye Reduction
- Effects
- Effects Setup
- Filter Factory
- Swap Colors
- Palette
- Options Menu
- Properties
- Properties, JPEG/PCD/GIF
- Properties, Extensions
- Properties, File Handling
- Properties, Viewing
- Properties, Full Screen
- Text/Pattern Options
- Properties, Video/Sound
- Properties, Language
- Properties, Misc. 1
- Properties, Misc. 2
- Properties, Misc. 3
- Properties, PlugIns
- Start Multimedia Player
- Stop Animation
- Extract all frames
- Send file by EMail
- JPG Lossless Operations
- JPG Lossless Crop
- Capture/Screenshot
- Sort directory files
- Set as Wallpaper
- Minimize
- Always on Top
- View Menu
- Status Bar
- Toolbar
- Title Bar/Caption
- Directory count display
- Full Screen
- Display options
- Next File in Directory
- Previous File in Directory
- First File in Directory
- Last File in Directory
- Random File in Directory
- Refresh
- Start/Stop Automatic Viewing
- Zoom In
- Zoom Out
- Lock Zoom
- Original size
- Lock Scroll position
- Show HEX view
- Multipage images
- Help Menu
- Thumbnails
- Available Hotkeys
- Find newest IrfanView version
- Frequently Asked Questions
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Resize/Resample/Resample
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Click on the Image Menu, then Resize/Resample. A dialog allows you to choose the new size for the image; some Resample filter can be used if you are enlarging the image.
There are several built in choices, or you can type over the old numbers. The first number is width, the second height, both in pixels. Leave the Preserve aspect ratio box checked, type in one number and the other will be calculated for you.
Resampling an image often improves its quality, especially when enlarging it. Enlarging without resampling can result in a blurry image.
Click OK to resize the image.
This action can be reversed by the Edit Menu's Undo command.