^start of line
{2}matches exactly 2 characters from the set below:
A-Zone character from A (6510) to Z (9010) (case sensitive)
-the literal - (4510 / 558 / 2D16)
\d{2}a digit, repeated exactly 2 times
-Annualthe literal text -Annual (case sensitive) \sany whitespace character
DSHthe literal text DSH (case sensitive) \sany whitespace character
Auditthe literal text Audit (case sensitive) \.the literal . (4610 / 568 / 2E16)
pdfthe literal text pdf (case sensitive) $end of line
g modifier: global. Finds all matches instead of stopping after the first
m modifier: multiline. Causes ^ and $ to match the start and end of each line, not only the start and end of the string