diff --git a/.gitignore b/.gitignore
index a136337..1944fd6 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1 +1 @@
-*.pdf
+*.tmp
diff --git a/HP 3457A Operating.pdf b/HP 3457A Operating.pdf
new file mode 100644
index 0000000..2d18c64
Binary files /dev/null and b/HP 3457A Operating.pdf differ
diff --git a/HP 3457A Service.pdf b/HP 3457A Service.pdf
new file mode 100644
index 0000000..7a9ba6f
Binary files /dev/null and b/HP 3457A Service.pdf differ
diff --git a/barcode.py b/barcode.py
deleted file mode 100644
index 85f32ce..0000000
--- a/barcode.py
+++ /dev/null
@@ -1,89 +0,0 @@
-from pylibdmtx import pylibdmtx as dmtx
-from PIL import Image, ImageDraw, ImageOps
-
-white = (255, 255, 255)
-black = (0, 0, 0)
-nullimg = Image.new('RGB', (9, 15), white)
-
-chars = [0] * 10
-
-# Draw zero
-chars[0] = nullimg.copy()
-draw = ImageDraw.Draw(chars[0])
-draw.rectangle([(0, 0), (8, 14)], fill=white, outline=black, width=3)
-
-# Draw one
-chars[1] = nullimg.copy()
-draw = ImageDraw.Draw(chars[1])
-draw.rectangle([(3, 0), (5, 14)], fill=black, outline=black, width=3)
-
-# Draw eight
-chars[8] = chars[0].copy()
-draw = ImageDraw.Draw(chars[8])
-draw.rectangle([(3, 6), (5, 8)], fill=black, outline=black, width=3)
-
-# Draw two and three
-chars[2] = chars[8].copy()
-draw = ImageDraw.Draw(chars[2])
-draw.rectangle([(0, 3), (2, 5)], fill=white, outline=white, width=3)
-chars[3] = chars[2].copy() # copy to three
-draw.rectangle([(6, 9), (8, 11)], fill=white, outline=white, width=3)
-# Finish three
-draw = ImageDraw.Draw(chars[3])
-draw.rectangle([(0, 9), (2, 11)], fill=white, outline=white, width=3)
-
-# Draw nine
-chars[9] = chars[8].copy()
-draw = ImageDraw.Draw(chars[9])
-draw.rectangle([(0, 9), (5, 14)], fill=white, outline=white, width=3)
-
-# draw four
-chars[4] = chars[9].copy()
-draw = ImageDraw.Draw(chars[4])
-draw.rectangle([(3, 0), (5, 2)], fill=white, outline=white, width=3)
-
-# draw five
-chars[5] = chars[8].copy()
-draw = ImageDraw.Draw(chars[5])
-draw.rectangle([(6, 3), (8, 5)], fill=white, outline=white, width=3)
-draw.rectangle([(0, 9), (2, 11)], fill=white, outline=white, width=3)
-
-# draw six
-chars[6] = chars[8].copy()
-draw = ImageDraw.Draw(chars[6])
-draw.rectangle([(3, 0), (8, 5)], fill=white, outline=white, width=3)
-
-# draw seven
-chars[7] = chars[8].copy()
-draw = ImageDraw.Draw(chars[7])
-draw.rectangle([(0, 3), (5, 14)], fill=white, outline=white, width=3)
-
-tgt = 'cmdsite/polls/static/polls/'
-
-def dmxcreate(value):
-    val = str(int(value))
-    # create value image
-    valimg = Image.new('RGB',
-                       (((9 * len(val)) + (3 * (len(val) - 1))), 15),
-                       white)
-    for i, x in enumerate(val):
-        valimg.paste(chars[int(x)], ((9 * i) + (3 * i), 0))
-
-    # create datamatrix
-    datamatrix = dmtx.encode(val.encode('utf-8'))
-    dmximg = Image.frombytes('RGB',
-                             (datamatrix.width, datamatrix.height),
-                             datamatrix.pixels)
-
-    # combine datamatrix with text value
-    img = Image.new('RGB',
-                    (max([dmximg.width, valimg.width]),
-                     dmximg.height + valimg.height),
-                    white)
-    img.paste(dmximg, (round(abs((dmximg.width - img.width) / 2)), 0))
-    img.paste(valimg, (round(abs((valimg.width - img.width) / 2)),
-                       dmximg.height))
-    
-    # Return grayscale image with transparency
-    img.putalpha(ImageOps.invert(img).convert('L'))
-    return img.convert('LA')