dompdf-0.8.3
php-font-lib-0.5.1
php-svg-lib-0.3.2

php-font-lib
https://stackoverflow.com/questions/13431905/php-font-lib-must-either-be-installed-via-composer-or-copied-to-lib-php-font-lib
Note: 
If you are not using composer and want to use the latest edition of dompdf, you will need to manually install php-font-lib: (https://stackoverflow.com/a/24505929/3854385)
Get the latest dompdf release from Github and extract it into a directory. (https://github.com/dompdf/dompdf/releases)
Download the library release also from Github (https://github.com/PhenX/php-font-lib/releases)
Create the dompdf/lib/php-font-lib/ directory.
In the zip file, take the contents of the src/FontLib/ folder and paste that into your newly created directory.

php-svg-lib
Do the same with this: https://github.com/PhenX/php-svg-lib/releases

Autoloader
https://github.com/dompdf/dompdf/commit/39cf8906c39a01b0e54ed140d970332580350cd6
Copy the autoload.inc.php file from the previous version.