From 8a7e006de811735a3b4ab3ab3c5c6b0bf12a4254 Mon Sep 17 00:00:00 2001
From: Dan Howe <d.howe@wrl.unsw.edu.au>
Date: Wed, 28 Mar 2018 07:23:01 +1100
Subject: [PATCH] Initial commit

---
 scripts/pdf_unlock.py | 65 +++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 65 insertions(+)
 create mode 100644 scripts/pdf_unlock.py

diff --git a/scripts/pdf_unlock.py b/scripts/pdf_unlock.py
new file mode 100644
index 0000000..cc3221d
--- /dev/null
+++ b/scripts/pdf_unlock.py
@@ -0,0 +1,65 @@
+__author__ = "D. Howe"
+__version__ = "0.1.0"
+__email__ = "d.howe@wrl.unsw.edu.au"
+
+import os
+import sys
+import glob
+import argparse
+import subprocess
+
+
+def pdf_unlock():
+    # Get pdfs in same folder
+    fnames = [
+        os.path.join(name) for name in os.listdir('.') if name.endswith('.pdf')
+    ]
+
+    # Use pdf names from user (if provided)
+    if len(sys.argv[1:]) > 0:
+        fnames = sys.argv[1:]
+
+    for fname in fnames:
+
+        # Strip file extension
+        base_name = os.path.splitext(fname)[0]
+
+        # save as temporary file
+        cmd_str = ('gs '
+                   '-dNOPAUSE '
+                   '-dQUIET '
+                   '-dBATCH '
+                   '-sDEVICE=pdfwrite '
+                   '-sOutputFile="{output_pdf}" '
+                   '"{input_pdf}"').format(output_pdf, input_pdf)
+
+        print('Processing ' + base_name + '.pdf ...')
+
+        with subprocess.Popen(
+                cmd_str,
+                stdout=subprocess.PIPE,
+                bufsize=1,
+                universal_newlines=True) as p:
+            for line in p.stdout:
+                print(line, end='')
+
+        # Overwrite original file
+        os.remove(base_name + '.pdf')
+        os.rename(base_name + '_temp.pdf', base_name + '.pdf')
+
+
+def main():
+    parser = argparse.ArgumentParser()
+    parser.add_argument('folder', help='name of input folder', default=None)
+    parser.add_argument(
+        '-r',
+        '--recursive',
+        help='search for files recursively',
+        action='store_true')
+    args = parser.parse_args()
+
+    print(args.recursive)
+
+
+if __name__ == '__main__':
+    main()