Keep Aspect Ratio

`Ctrl` + `F5`

All hotkeys for GOM Player (Windows)

Video Control Flip - Input	`Ctrl` + `Y`
Video Control Flip - Output	`Ctrl` + `V`
Video Control Sharpen	`Ctrl` + `M`
Video Control Noise	`Ctrl` + `N`
Video Control Reset Video Control	`Q`
Video Control Increase Brightness/Contrast	`W`
Video Control Increase Brightness by 5%	`R`
Video Control Decrease Brightness by 5%	`E`
Video Control Increase Contrast by 5%	`Y`
Video Control Decrease Contrast by 5%	`T`
Video Control Increase Saturation by 5%	`I`
Video Control Decrease Saturation by 5%	`U`
Video Control Increase Hue by 5%	`P`
Video Control Decrease Hue by 5%	`O`
Pan & Scan Set Aspect Ratio	`Numpad 0`
Pan & Scan Reset to Default	`Numpad 5`
Pan & Scan Video to the Right	`Numpad 6`
Pan & Scan Video to the Left	`Numpad 4`
Pan & Scan Video to the Up	`Numpad 8`
Pan & Scan Video to the Down	`Numpad 2`
Pan & Scan Video Size +	`Ctrl` + `Numpad 9`
Pan & Scan Video Size -	`Ctrl` + `Numpad 1`
Pan & Scan Video Width +	`Ctrl` + `Numpad 6`
Pan & Scan Video Width -	`Ctrl` + `Numpad 4`
Pan & Scan Video Height +	`Ctrl` + `Numpad 8`
Pan & Scan Video Height -	`Ctrl` + `Numpad 2`
Pan & Scan Window to the Left	`Ctrl` + `Alt` + `Numpad 4`
Pan & Scan Window to the Right	`Ctrl` + `Alt` + `Numpad 6`
Pan & Scan Window to the Up	`Ctrl` + `Alt` + `Numpad 8`
Pan & Scan Window to the Down	`Ctrl` + `Alt` + `Numpad 2`
Pan & Scan Window Size +	`Ctrl` + `Alt` + `Numpad +`
Pan & Scan Window Size -	`Ctrl` + `Alt` + `Numpad -`
Pan & Scan Window to the Center	`Ctrl` + `Alt` + `Numpad 5`
Pan & Scan Window Top Left Corner	`Ctrl` + `Alt` + `Numpad 7`
Pan & Scan Window Top Right Corner	`Ctrl` + `Alt` + `Numpad 9`
Pan & Scan Window Bottom Right Corner	`Ctrl` + `Alt` + `Numpad 3`
Pan & Scan Window Bottom Left Corner	`Ctrl` + `Alt` + `Numpad 1`
Window Size Minimum Size	`
Window Size 50%	`1`
Window Size 100%	`2`
Window Size 150%	`3`
Window Size 200%	`4`
Window Size Fit to Desktop Resolution	`5`
Window Size Maximize/Restore	`6`
Window Size Fit to Video Input	`7` / `Delete`
Window Size Full Screen/Restore	`Alt` + `Enter`
Window Size Full Stretch Screen	`Ctrl` + `Enter`
Window Size Full Stretch Screen (Keep Ratio)	`Ctrl` + `Alt` + `Enter`
Playback Speed Speed - Up	`Ctrl` + `Shift` + `F` / `G`
Playback Speed Speed - Down	`Ctrl` + `Shift` + `B`
Playback Speed Speed - Normal	`Ctrl` + `Shift` + `N`
Screen Capture Advanced Screen Capture	`Ctrl` + `G`
Screen Capture Copy the Current Frame	`Ctrl` + `C`
Screen Capture Save the Current Frame	`Ctrl` + `E`
Aspect Ratio Keep Aspect Ratio	`Ctrl` + `F5`
Aspect Ratio Default Aspect Ratio	`Ctrl` + `F6`
Aspect Ratio 4:3 (TV)	`Ctrl` + `F7`
Aspect Ratio 16:9 (HDTV)	`Ctrl` + `F8`
Aspect Ratio 1.85:1 (Screen)	`Ctrl` + `F9`
Aspect Ratio 2.35:1 (Screen)	`Ctrl` + `F10`
Aspect Ratio User Defined	`Ctrl` + `F11`
Subtitles Show/Hide Subtitles	`Alt` + `H`
Subtitles Subtitle Explorer	`Alt` + `E`
Subtitles Horizontal Spacing +	`Alt` + `Numpad 6`
Subtitles Horizontal Spacing -	`Alt` + `Numpad 4`
Subtitles Vertical Spacing +	`Alt` + `Numpad 8`
Subtitles Vertical Spacing -	`Alt` + `Numpad 2`
Subtitles Default Position	`Alt` + `Home`
Subtitles Enlarge Font Size	`Alt` + `Page Up`
Subtitles Reduce Font Size	`Alt` + `Page Down`
Subtitles Change Language	`Alt` + `L`
Subtitles 0.5 sec Faster	`>`
Subtitles 0.5 sec Slower	`<`
Subtitles Default Sync	`/`
Subtitles Font - Bold	`Alt` + `B`
Subtitles Open Subtitles	`Alt` + `O`
Subtitles Select Language	`S`
Subtitles Move Subtitle Position	`Alt` + `Arrow Keys`
Subtitles Previous Subtitle Sync	`Home`
Subtitles Next Subtitle Sync	`End`
Playback Control Bookmark	`B`
Playback Control Add to Bookmark	`N`
Playback Control Open - Easy Browser	`Ctrl` + `I`
Playback Control Open - Easy Subtitles Browser	`Alt` + `I`
Playback Control Open - File(s)	`Ctrl` + `O`
Playback Control Open - ODD (CD/DVD)	`F12`
Playback Control Open - Directory	`Ctrl` + `D`
Playback Control Open - URL	`Ctrl` + `U`
Playback Control Finish Playback	`F4`
Playback Control Play/Pause	`Space` / `Ctrl` + `P`
Playback Control Stop	`Ctrl` + `Space`
Playback Control Restart from the beginning	`BackSpace Key`
Playback Control Forward 10 sec	`Ctrl` + `F`
Playback Control Forward 60 sec	`Ctrl` + `Arrow Right`
Playback Control Forward 300 sec	`Shift` + `Arrow Right`
Playback Control Backward 10 sec	`Ctrl` + `B`
Playback Control Backward 60 sec	`Ctrl` + `Arrow Left`
Playback Control Backward 300 sec	`Shift` + `Arrow Left`
Volume Control Volume Up/Down	`Up/Down Arrow Keys`
Volume Control Wave Volume Up/Down	`Ctrl` + `Up/Down Arrow Keys`
Volume Control Master Volume Up/Down	`Ctrl` + `Shift` + `Up/Down Arrow Keys`
Volume Control Mute	`M`
Volume Control Select Audio Stream	`A`
Volume Control Advanced Audio Capture	`Shift` + `G`
Volume Control Use Equalizer	`Shift` + `E`
Volume Control Set Equalizer	`L`
Volume Control Use Normalizer	`Shift` + `N`
Volume Control Decrease Equalizer Level	`Ctrl` + `Alt` + `Down`
Volume Control Increase Equalizer Level	`Ctrl` + `Alt` + `Up`
Volume Control Audio Settings	`Shift` + `P`
Volume Control Voice Filter	`V`
Volume Control Reverb Effect	`Shift` + `R`
Volume Control Extra-Stereo Effect	`Shift` + `S`
DVD Control DVD Control Menu	`D`
DVD Control Previous Chapter	`Page Up`
DVD Control Next Chapter	`Page Down`
DVD Control Root Menu	`Ctrl` + `Backspace`
Skins Set Skins	`K`
Skins Skin Management	`Alt` + `F10`
Skins Previous Color Theme	`Alt` + `F11`
Skins Next Color Theme	`Alt` + `F12`
Playlist Previous File	`Page Up`
Playlist Next File	`Page Down`
Windows Control Panel	`F7`
Windows Playlist	`F8`
Windows GOM TV	`F9`
Windows Toggle - GOM DMB/GOM TV	`Alt` + `F9`
Windows Open - GOM TV Easy Browser	`Ctrl` + `Alt` + `O`
Favorites Add Current Directory	`Alt` + `D`
Favorites Add Current Directory	`Alt` + `G`
Favorites Manage Favorites	`Alt` + `F`
AB Repeat Start AB Repeat	`[`
AB Repeat End AB Repeat	`]`
AB Repeat Undo Start AB Repeat	`Shift` + `[`
AB Repeat Undo End AB Repeat	`Shift` + `]`
AB Repeat Undo AB Repeat	`\`
Others Always On Top	`Ctrl` + `A`
Others On Top While Playing	`Ctrl` + `T`
Others Close	`Alt` + `F4` / `Alt` + `X`
Others View Playing Time	`Tab`
Others Frame Step	`F`
Others Refresh Skins	`Ctrl` + `R`
Others Preferences	`F5`
Others Shutdown Computer when finished the files	`Ctrl` + `Z`
Others Exit GOM Player when finished the files	`Ctrl` + `X`
Others Set as Wallpaper	`Ctrl` + `7` (Center), `Ctrl` + `8` (Tile), `Ctrl` + `9` (Stretch), `Ctrl` + `0` (Delete)
Others Playing File Information	`Ctrl` + `F1`
Others Use Frame Skip	`Shift` + `'`