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macos [2025/12/10 01:31] – Namemacos [2026/01/04 02:53] (current) – [Combine PDFs] Name
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 }' > $HOME/Library/KeyBindings/DefaultKeyBinding.dict</code> }' > $HOME/Library/KeyBindings/DefaultKeyBinding.dict</code>
     - No need to reboot     - No need to reboot
 +
 +
 +====Create Symbolic Links====
 +Creating a symbolic links (sym link) makes the operating system, or application, think that the file or folder is in a location is it not.\\ 
 +In this example, I am creating sym link to store my email (Thunderbird) files on an external drive. This frees up internal disk space.
 +  - Backup directory or file to a safe location.
 +  - Copy the directory or file to an external drive.
 +  - Double-check the backup is correct.
 +  - Triple-check the backup is correct, because the next step cannot be undone.
 +  - Delete the original file or directory.
 +  - Empty the Recycle Bin.
 +  - The following example is the exact code I used.
 +    * <code>sudo ln -s /Volumes/4k-ext/tim/Library/Thunderbird/Profiles/bblzz0wg.default-release/ /Users/tim/Library/Thunderbird/Profiles/</code>
 +      * /Volumes/4k-ext is the external drive.
 +      * /Users/tim/Library is the internal drive.
 +  - Test.
 +  - Done.
 +
 +I have successfully done this for Documents, Pictures (Currently, I recommend not doing this for Pictures), Downloads, Music, and many others. For the folders in my /usr/tim directly, I had to create sub-folders. For example, /usr/tim/Documents is now /usr/tim/Documents/Documents. Where, the latter is a sym link that points to the external drive. I chose not to modify anything in my profile hierachy in case my external drive is not available. I also backup my external drive to a NAS. Finally, my external drive is a 2TB NVMe drive connected to a 10 GB/s USB-C port.
 +
 +====Combine PDFs====
 +Combine a list of PDF files.
 +<code>"/System/Library/Automator/Combine PDF Pages.action/Contents/MacOS/join" -o PATH/TO/YOUR/MERGED/FILE.pdf /PATH/TO/ORIGINAL/1.pdf /PATH/TO/ANOTHER/2.pdf</code>
 +
 +Combine an entire directory of PDF files.
 +<code>"/System/Library/Automator/Combine PDF Pages.action/Contents/MacOS/join" -o PATH/TO/YOUR/MERGED/FILE.pdf /PATH/TO/A/WHOLE/DIR/*.pdf</code>
 +
macos.1765330291.txt.gz · Last modified: by Name

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