diff --git a/copy-files.sh b/copy-files.sh
index 53e8d51..ec14587 100644
--- a/copy-files.sh
+++ b/copy-files.sh
@@ -1,8 +1,8 @@
 #!/bin/sh
 
 usage() {
-	echo "Usage: copy-files.sh <file> <output directory>"
-	echo "<file>: file that contains the files to copy, each on a different line"
+	echo "Usage: copy-files.sh <input directory> <output directory>"
+	echo "<input directory>: directory where the files are located"
 	echo "<output directory>: directory where the files are copied to"
 	exit 1
 }
@@ -11,9 +11,7 @@ if [ $# != 2 ]; then
 	usage
 fi
 
-filename=$1
+input=$1
 output=$2
 
-while read -r p; do
-	cp "$p" "$output"
-done <"$filename"
+find "$input" -type f -iregex '.*\.\(pdf\|doc\|docx\|xlsx\|accdb|\mdb\)' -print0 | xargs -0 cp "{}" "$output"