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For HFS+ file system : sudo diskutil resizeVolume / R more info : https://themacwrangler.wordpress.com/2015/10/21/resizing-el-capitan-mac-volumes-under-vmware-fusion/   For APFS file system : /usr/sbin/diskutil info / | awk ‘/Part of Whole/ {print $4}’ /usr/sbin/diskutil apfs resizeContainer /dev/apfs_container_id_goes_here 0 /usr/sbin/diskutil apfs resizeContainer /dev/disk1 0 More info : https://derflounder.wordpress.com/2017/10/18/resizing-a-macos-vms-apfs-boot-drive-to-use-all-available-disk-space/

Reduce PDF file size

A handful of quartz filters for saving PDFs.   As an example, using a 73 MB PDF from a 55 page Powerpoint presentation, the compressed files have the following sizes : + 75 dpi low quality : 2.7 MB + 75 dpi average quality : 3.2 MB + 150 dpi low quality : 4.2 MB […]

How to Create an Archived iTunes Backup

Regularly creating iCloud or iTunes backups should be routine for every iOS user, but if you want to upgrade to a beta version of iOS or if you think you might want to downgrade shortly after installing a new iOS update, you’ll want to make sure create an archived iTunes backup beforehand. An archived iTunes […]

Creating PAYLOAD-FREE Package

Here’s how we make a “true” payload-free package (that does not leave a receipt): pkgbuild –nopayload –scripts /path/to/scripts_dir –identifier org.example.payloadfree –version 1.0 MyGreatPayloadFree.pkg But payload-free packages built this way have a “feature” that can sometimes prove problematic. Flat packages built with pkgbuild using the –nopayload option do not leave receipts in the pkgutil database. This […]

Decoding the Caching server

1. Server and clients – Behind Same Public IP (same or different subnet)     First, the server registers with Apple, it provides it Public IP and the Private IP.  Apple notes both the information. Second, When the client requests Apple for  any download, since Apple knows that there is a caching server associated with […]