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Mac OS X


1. To avoid anomalies, it is advisable to disable the GreekKeys keyboard that you currently have enabled before running the installer. Do this in Keyboard System Preference (Input Sources pane) by selecting the keyboard and clicking on the minus sign.

2. Once the old keyboard is disabled, it is also advisable (though not absolutely necessary) to remove the source file, GKUall.bundle. Since there are two locations where that file might be located (namely, in the Keyboard Layouts folder inside the top-level Library folder, or in the Keyboard Layouts folder inside the user’s own Library folder), you can use the Automator app (found in the same folder as the installer), which will open the folder containing that bundle (as well as GKUdcmp1.bundle and/or GKUdcmp2.bundle if those are present). You can then move the old bundle(s) to the Trash or to another location outside the Keyboard Layouts folder.

3. If you do not remove the old bundle(s), then the installer will overwrite it if it is in the top-level Library folder, but leave it in place if it is in username/Library/Keyboard Layouts.


Installation is easily performed by a standard Mac OS X Installer package entitled GK2015Mac.pkg or GK2015MacRev2018.pkg. This is located in the folder GK2015 Mac Installer. Most images in these steps show names and labels containing GK2015Mac or GreekKeys2015Mac, but you may actually see instead GK2015MacRev2018 or GreekKeys2015MacRev2018.

1. Save your work in other applications and quit them. The installation will be on the startup volume; a restart is not required when the installer finishes.

2. Because the installer does not contain a security certificate, you will NOT be able to open it (for the first time after downloading) by double-clicking on its icon (if you do, you will see a warning that provides unhelpful advice). (There will be an URL in the alert message, erased from this picture.)

Instead, right-click or control-click on the icon to bring up a contextual menu, from which you should select Open.

When you see a dialog like the following, click on Open. (There will be an URL in the alert message, erased from this picture.)

3. Proceed through the steps of the installer and agree to the license.

4. Note that on the Destination screen you sometimes have to wait a while or click on the destination in order to make the Continue button active. In some situations, the installer will skip the Destination screen and move right on to 5.

5. The default Standard installation includes the regular GreekKeys keyboards and the four fonts, each in all four styles. You may select Customize to make changes or select Install for the Standard components.

6. (OPTIONAL) With Customize you can add installation of the GKU decomposed inputs, or deselect some or all of the fonts (for instance, if you don’t want the styled versions as well as the regular version).

7. An administrative password is required for the installation:

8. When the installer finished, quit the installer and restart your computer.

9. To use the keyboards, you must still take the steps for ACTIVATION, given next.


NOTE: After restarting, follow these steps to activate the desired keyboards.

1. Open System Preferences and select Keyboard.

2. Select the Input Sources tab.

3. Make sure that “Show input menu in menu bar” is checked, and click on the + sign to add a keyboard that is not already shown as active.

4. Select Greek on the left side in order to see a scrolling list of the GreekKeys Unicode keyboards:

5. Select the items you want from the scrolling list and click on Add.

6. Close System Preferences. You should now see an input menu among those at the right side of the menubar.

If your main language is US English, you will see a US flag, and if you open the menu you will see other choices, such as the Greek temple icon with superimposed U for GreekKeys Unicode(US).

NOTE: for most users the following will not be necessary: for advice on how to verify the installed version of the keyboard bundle, or for advice on verifying that the newest version of a font is the active one on your system, please consult GK2015UserGuide.pdf, sections 5.D and 5.E.


Fonts are installed by running the Mac installer, but if the need arises to perform manual installation, then here are the ways to do that.

It is possible to install fonts manually by double-clicking on the .ttf font files. With this method of installation, the fonts will go to the location that is specified in the Preferences of the application Font Book, where there is a choice between Computer (location /Library/Fonts) and User (location username/Library/Fonts).

Or with Font Book open you can add fonts using the + button or the command “Add fonts…” under the Font Book File menu.


The steps and illustrations below are applicable to Windows 8 and Windows 10. The process for Windows 7 is very similar, but the appearance differs.

You must have administrative privileges on the computer in order to install and activate the GreekKeys keyboard. If not, the installation will fail, but the installer may not tell you this is the reason.


The new versions all have 2015 in the keyboard name and therefore may be installed side by side with the older versions. You have two choices for dealing with the older version.

(1) Run the setup.exe file from the previous version in order to uninstall it: if a keyboard is installed, the setup.exe will (as shown below) automatically give you the choice of removing or repairing (reinstalling) it, and you should choose to remove it.

(2) Leave the keyboard installed, but deactivate it so that it no longer appears in the Language Bar. Instructions about activating and deactivating keyboards are given in GK2015UserGuide.pdf, section 12D.


1. If you have not already downloaded GreekKeys 2015, click on the Download link. In some browsers you will be asked what to do; if so, select Save As… and choose the Desktop (or other convenient location) for the download. With other browsers, the zip archive will automatically go to Downloads.

2. Go to whichever location was used for the downloaded file.

3. Select the compressed folder (with the zipper icon), and right-click on it to reveal the contextual menu.

4. Select Extract all… and then in the resulting dialog choose the location for the extracted files (such as the Desktop).

5. Now locate the folder GK2015 Windows Installers.

6. Open it and then open the folder for the localized version of the keyboard you want (or for one of the symbols keyboards).

7. Double-click on setup (or setup.exe).

8. Windows will inform you it has blocked installation because the developer is unknown. Click on More Info.

9. This will reveal the button for Run anyway. Click on that.

10. A small alert saying the installation is beginning will flash by, too quickly to be read.

11. Windows Defender will flash, seeking your attention. Click Yes in the security alert.

12. The notice of successful installation will appear after a few seconds.

The installed keyboard will automatically be activated in the language bar, and the language bar will be present at the bottom right if it was not present before. For more on the Windows language bar and the settings you can adjust, see GK2015UserGuide.pdf, section 12C.


You must have administrative privileges on the computer in order to install or remove fonts. If not, the installation will fail, but you may not receive feedback to tell you this is the reason.

Under Windows, the GreekKeys fonts are installed separatedly from the keyboards. The most efficient way to install is as follows:

1. Open the folder containing the fonts you want to install.

2. Select the font files you want to install (there are four files for each font; if you don’t want the styled versions, you should select the one that has “reg” in the name or a name without Bold, Italic, or BoldItalic).

3. Right-click for a contextual menu, and select Install.

4. If a font is already present, you will be asked whether you want to replace the installed version with the new one.

Another, less efficient method (since it operates only one file at a time), is to double click on a font file: you will see a preview window, with the Install button at the upper left.

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