How to change the "Vertical" and "Horizontal" characters in Google Chrome's print layout

This time, we will show you how to change the "Vertical" and "Horizontal" notation in the layout when printing in Google Chrome to any characters you like.

Currently, the latest version of Google Chrome is experiencing an issue where "landscape" is displayed as "landscape" when printing.

Chrome Print Settings - Layout
Chrome Print Settings Screen – Layout

Is this a Chrome bug? Why does "landscape" appear as "landscape" when printed?

2024 / 09 / 19:

The notation has been corrected to "landscape" in Google Chrome version 129.0.6668.59 (Official Build) and later.

2024 / 09 / 21:

With the update to version 129.0.6668.59, the following files related to the notation of "vertical" and "horizontal" have been changed.

Therefore, we are currently suspending the provision of auxiliary tools, but we plan to revise the article and update the tools in a few days (if possible).

table of contents

1. Preparation

* Make sure to display the file extension.

How to display file extensions

1. First, download "chrome-pak.7z" from the following page,Unzip(Unpack it into the "chrome-pak" folder).

https://github.com/myfreeer/chrome-pak-customizer/releases

"chrome-pak.7z" download page
"chrome-pak.7z" download page
If you don't have decompression software

*If you do not have decompression software, download and install 7-zip from the following page.

https://7-zip.opensource.jp/download.html

https://7-zip.opensource.jp/download.html

If you are not sure whether your PC is 64-bit or 32-bit, please refer to the following page to check the "System Type".

4 ways to check the specs (performance, specifications) of your Win10/Win11 PC – System Details (Settings)

To unzip using 7-zip, hold down the Shift key while right-clicking on the downloaded "chrome-pak.7z" and click "Extract to "chrome-pak\".

"Extract to 'chrome-pak\'"

2. Open the extracted "chrome-pak" folder and you will find four files inside.

  • pack.bat
  • pak_mingw32.exe
  • pak_mingw64.exe
  • unpack.bat
"chrome-pak" folder
"chrome-pak" folder

3. Press Windows key + E to open File Explorer (new window).

*Currently, there are three Explorer windows open.

4. Copy and paste the following path into the address bar of File Explorer and press Enter:

C:\Program Files\Google\Chrome\Application
Explorer address bar
Explorer address bar

5. "Application" will open, so open the folder with the Chrome version number inside.

"Application" folder
"Application" folder

6. Open the "Locales" folder.

Chrome version number folder
Chrome version number folder

7. Copy the "ja.pak" file from the "Locales" folder and paste it into the "chrome-pak" folder you just extracted.

ja.pak
ja.pak
"chrome-pak" folder
"chrome-pak" folder

8. Left-click the "ja.pak" file, hold it down, and then move it over "unpack.bat" and release the left-click (drag and drop).

"chrome-pak" folder
"chrome-pak" folder

9. A command prompt will open, so please wait for it to close automatically (a few seconds).

10. Once the command prompt closes, a folder called "ja_unpacked" will be created.

11. Right-click on the "ja_unpacked" folder and click "Open in new window."

*Currently, there are three Explorer windows open.

2. Change the "Vertical" and "Horizontal" notation of the layout when printing to any characters.

In the "ja_unpacked" folder, "9440" is the "horizontal" notation and "9759" is the "vertical" notation.

In Google Chrome versions 129.0.6668.59 to 129.0.6668.101 (Official Build), "9795" has been changed to "horizontal" and "9796" to "vertical."

1. For example, if you want to change the notation of "horizontal," right-click on the "9440" file and click "Edit with Notepad" (open with Notepad).

2. Delete the text, enter any text, and then save it.

Before editing
Before editing

After editing
After editing

3. Close Notepad, left-click the "pak_index.ini" file in the "ja_unpacked" folder, hold it down, and move it over "pack.bat" in the "chrome-pak" folder, then release the left-click.

Left-click on the "pak_index.ini" file and hold it down, then move it over "pack.bat" and release the left-click.
Left-click on the "pak_index.ini" file and hold it down, then move it over "pack.bat" and release the left-click.

4. A command prompt will open, so please wait for it to close automatically (a few seconds).

5. Once the command prompt closes, a file called "pak_index_packed.pak" will be created in the "ja_unpacked" folder.

"ja_unpacked" folder
"ja_unpacked" folder

6. Rename the "pak_index_packed.pak" file to "ja.pak".

7. Close Google Chrome and rename "ja.pak" in the "Locales" folder to "ja.pak.bak".

8. Copy "ja.pak" from the "ja_unpacked" folder to the "Locales" folder.

"Locales" folder
"Locales" folder

9. Open Google Chrome and check if the print layout has changed from "Landscape" to "Landscape."

Print layout
Print layout

Auxiliary tool for chrome-pak Easily change the notation of "vertical" and "horizontal"

I have created a tool that makes it easy to complete steps 3 of "1. Preparation" above through "2. Change the "Vertical" and "Horizontal" characters in the layout when printing to any character you like." Please try it out if you need it.

Downloading chrome-pak's auxiliary tools

The issue has been resolved in newer versions of Google Chrome, so we have discontinued the tool.

How to use chrome-pak's auxiliary tools

1. First, "1. PreparationPlease follow steps 1 and 2 of "

2. Download and extract the chrome-pak auxiliary tool.

3. Copy the "chrome-pak auxiliary tool.exe" file into the "chrome-pak" folder you just extracted.

It's OK if it's in the following state:

"chrome-pak" folder
"chrome-pak" folder

4. Run "chrome-pak auxiliary tool.exe".

5. When the "User Account Control" screen appears, click "Yes".

ユーザーアカウント制御
ユーザーアカウント制御

6. The tool will then launch and load and display the current print layout's "portrait" and "landscape" notation.

chrome-pak auxiliary tools
chrome-pak auxiliary tools

At the same time, the "ja.pak" file and the "ja_unpack_dir" folder will be created in the "chrome-pak" folder.

"chrome-pak" folder
"chrome-pak" folder

7. Change the text to the right of the "Vertical" and "Horizontal" tools to your liking and click the "Change" button.

chrome-pak auxiliary tools
chrome-pak auxiliary tools

8. A confirmation screen will appear, so close Chrome and click "Yes".

9.After 2-3 seconds, the message "The layout notation has been changed. Please launch Chrome to check." will be displayed, so click OK.

Layout notation
Layout notation

The "Vertical" and "Horizontal" notations for the layout when printing have now been changed, so you can close the tool.

Please open Chrome and check if the changes have been made.

Chrome Print Settings - Layout
Chrome Print Settings Screen – Layout
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Person who wrote this article

Driven by questions arising from my daily PC use and the desire to "do more," I have been pursuing self-study in Windows since around 2008. I am sharing the "aha!" techniques and solutions I discovered through trial and error with the sole purpose of helping you in your PC life.

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