added pdf2png script

1 files changed, 31 insertions, 0 deletions

diff --git a/pdf2png b/pdf2png
new file mode 100755
index 0000000..ae56a40
--- /dev/null
+++ b/pdf2png
@@ -0,0 +1,31 @@
+#!/bin/sh
+
+input_pdf="$1"
+first_page="$2"
+last_page="$3"
+file_name="$(basename -s .pdf """$1""")"
+
+if [ "$2" = "" ]
+then
+	first_page="1"
+else
+	:
+fi
+
+if [ "$3" = "" ]
+then
+	last_page="$first_page"
+else
+	:
+fi
+
+#convert the PDF to a 600px wide PNG image
+pdftoppm -f "$first_page" -l "$last_page" -png -scale-to-x 696 -scale-to-y -1 "$input_pdf" "$file_name"
+
+#add a 2x2px border to the image.png file
+for file in "$file_name"*.png; do
+	convert "$file" -bordercolor black -border 2x2 "$file"
+
+	#compress the image
+	optipng "$file";
+done