1 files changed, 27 insertions, 0 deletions
diff --git a/doc/manual/pdf_crop_by.py b/doc/manual/pdf_crop_by.py
new file mode 100644
index 000000000..ccc6d370d
--- /dev/null
+++ b/doc/manual/pdf_crop_by.py
@@ -0,0 +1,27 @@
+import shlex
+import subprocess
+import sys
+
+if len(sys.argv) != 7:
+    print("Syntax: %s <in-pdf> <out-pdf> <left> <bottom> <right> <top>" % sys.argv[0])
+    sys.exit(1)
+
+in_pdf = sys.argv[1]
+out_pdf = sys.argv[2]
+
+cp = subprocess.run(shlex.split('gs -dNOPAUSE -dBATCH -sDEVICE=bbox %s' % in_pdf), capture_output=True)
+if cp.returncode != 0:
+    print("gs call failed", file=sys.stderr)
+    sys.exit(1)
+for line in cp.stderr.splitlines():
+    print(line)
+    if line.startswith(b"%%BoundingBox"):
+        old_bbox = line.split()[1:]
+        new_bbox = []
+        for i in range(0, 2):
+            new_bbox.append(int(old_bbox[i]) + int(sys.argv[i+3]))
+        for i in range(2, 4):
+            new_bbox.append(int(old_bbox[i]) - int(sys.argv[i+3]))
+        print(new_bbox)
+        cp = subprocess.run(shlex.split('pdfcrop --bbox "%d %d %d %d" %s %s' % (new_bbox[0], new_bbox[1], new_bbox[2], new_bbox[3], in_pdf, out_pdf)))
+