%PDF-1.4
%
1 0 obj
<>
endobj
2 0 obj
<>stream
application/pdf
NexIN_Guideline_2021_cs
2021-01-13T15:17+09:00
2021-01-13T15:17+09:00
2021-01-13T15:17+09:00
Adobe Illustrator CC 23.1 (Macintosh)
256
116
JPEG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uuid:ba949a14-c3be-da43-8eef-9fa942361e8b
xmp.did:ae513eb9-94e0-4393-a4d0-a527ff018780
uuid:5D20892493BFDB11914A8590D31508C8
proof:pdf
uuid:0dc1fce5-c287-934f-b535-790c50e26b1f
xmp.did:ffc7323e-1e35-4254-b36e-2281acc9351a
uuid:5D20892493BFDB11914A8590D31508C8
proof:pdf
saved
xmp.iid:207387bd-f2c6-4343-8bf6-7019f075844d
2020-11-25T20:37:33+09:00
Adobe Illustrator 24.3 (Macintosh)
/
saved
xmp.iid:ae513eb9-94e0-4393-a4d0-a527ff018780
2021-01-13T15:16:44+09:00
Adobe Illustrator CC 23.1 (Macintosh)
/
Document
Print
Adobe Illustrator
False
True
1
297.000005
209.999998
Millimeters
Cyan
Magenta
Yellow
Black
Default Swatch Group
0
White
CMYK
PROCESS
0.000000
0.000000
0.000000
0.000000
Black
CMYK
PROCESS
0.000000
0.000000
0.000000
100.000000
CMYK Red
CMYK
PROCESS
0.000000
100.000000
100.000000
0.000000
CMYK Yellow
CMYK
PROCESS
0.000000
0.000000
100.000000
0.000000
CMYK Green
CMYK
PROCESS
100.000000
0.000000
100.000000
0.000000
CMYK Cyan
CMYK
PROCESS
100.000000
0.000000
0.000000
0.000000
CMYK Blue
CMYK
PROCESS
100.000000
100.000000
0.000000
0.000000
CMYK Magenta
CMYK
PROCESS
0.000000
100.000000
0.000000
0.000000
C=15 M=100 Y=90 K=10
CMYK
PROCESS
15.000000
100.000000
90.000000
10.000000
C=0 M=90 Y=85 K=0
CMYK
PROCESS
0.000000
90.000000
85.000000
0.000000
C=0 M=80 Y=95 K=0
CMYK
PROCESS
0.000000
80.000000
95.000000
0.000000
C=0 M=50 Y=100 K=0
CMYK
PROCESS
0.000000
50.000000
100.000000
0.000000
C=0 M=35 Y=85 K=0
CMYK
PROCESS
0.000000
35.000000
85.000000
0.000000
C=5 M=0 Y=90 K=0
CMYK
PROCESS
5.000000
0.000000
90.000000
0.000000
C=20 M=0 Y=100 K=0
CMYK
PROCESS
20.000000
0.000000
100.000000
0.000000
C=50 M=0 Y=100 K=0
CMYK
PROCESS
50.000000
0.000000
100.000000
0.000000
C=75 M=0 Y=100 K=0
CMYK
PROCESS
75.000000
0.000000
100.000000
0.000000
C=85 M=10 Y=100 K=10
CMYK
PROCESS
85.000000
10.000000
100.000000
10.000000
C=90 M=30 Y=95 K=30
CMYK
PROCESS
90.000000
30.000000
95.000000
30.000000
C=75 M=0 Y=75 K=0
CMYK
PROCESS
75.000000
0.000000
75.000000
0.000000
C=80 M=10 Y=45 K=0
CMYK
PROCESS
80.000000
10.000000
45.000000
0.000000
C=70 M=15 Y=0 K=0
CMYK
PROCESS
70.000000
15.000000
0.000000
0.000000
C=85 M=50 Y=0 K=0
CMYK
PROCESS
85.000000
50.000000
0.000000
0.000000
C=100 M=95 Y=5 K=0
CMYK
PROCESS
100.000000
95.000000
5.000000
0.000000
C=100 M=100 Y=25 K=25
CMYK
PROCESS
100.000000
100.000000
25.000000
25.000000
C=75 M=100 Y=0 K=0
CMYK
PROCESS
75.000000
100.000000
0.000000
0.000000
C=50 M=100 Y=0 K=0
CMYK
PROCESS
50.000000
100.000000
0.000000
0.000000
C=35 M=100 Y=35 K=10
CMYK
PROCESS
35.000000
100.000000
35.000000
10.000000
C=10 M=100 Y=50 K=0
CMYK
PROCESS
10.000000
100.000000
50.000000
0.000000
C=0 M=95 Y=20 K=0
CMYK
PROCESS
0.000000
95.000000
20.000000
0.000000
C=25 M=25 Y=40 K=0
CMYK
PROCESS
25.000000
25.000000
40.000000
0.000000
C=40 M=45 Y=50 K=5
CMYK
PROCESS
40.000000
45.000000
50.000000
5.000000
C=50 M=50 Y=60 K=25
CMYK
PROCESS
50.000000
50.000000
60.000000
25.000000
C=55 M=60 Y=65 K=40
CMYK
PROCESS
55.000000
60.000000
65.000000
40.000000
C=25 M=40 Y=65 K=0
CMYK
PROCESS
25.000000
40.000000
65.000000
0.000000
C=30 M=50 Y=75 K=10
CMYK
PROCESS
30.000000
50.000000
75.000000
10.000000
C=35 M=60 Y=80 K=25
CMYK
PROCESS
35.000000
60.000000
80.000000
25.000000
C=40 M=65 Y=90 K=35
CMYK
PROCESS
40.000000
65.000000
90.000000
35.000000
C=40 M=70 Y=100 K=50
CMYK
PROCESS
40.000000
70.000000
100.000000
50.000000
C=50 M=70 Y=80 K=70
CMYK
PROCESS
50.000000
70.000000
80.000000
70.000000
R=117 G=152 B=186
PROCESS
100.000000
CMYK
58.800602
32.501701
15.790001
2.038600
C=0 M=0 Y=0 K=100
CMYK
PROCESS
0.000000
0.000000
0.000000
100.000000
C=0 M=0 Y=0 K=90
CMYK
PROCESS
0.000000
0.000000
0.000000
89.999400
C=0 M=0 Y=0 K=80
CMYK
PROCESS
0.000000
0.000000
0.000000
79.998800
C=0 M=0 Y=0 K=70
CMYK
PROCESS
0.000000
0.000000
0.000000
69.999700
C=0 M=0 Y=0 K=60
CMYK
PROCESS
0.000000
0.000000
0.000000
59.999100
C=0 M=0 Y=0 K=50
CMYK
PROCESS
0.000000
0.000000
0.000000
50.000000
C=0 M=0 Y=0 K=40
CMYK
PROCESS
0.000000
0.000000
0.000000
39.999400
C=0 M=0 Y=0 K=30
CMYK
PROCESS
0.000000
0.000000
0.000000
29.998800
C=0 M=0 Y=0 K=20
CMYK
PROCESS
0.000000
0.000000
0.000000
19.999700
C=0 M=0 Y=0 K=10
CMYK
PROCESS
0.000000
0.000000
0.000000
9.999100
C=0 M=0 Y=0 K=5
CMYK
PROCESS
0.000000
0.000000
0.000000
4.998800
C=0 M=100 Y=100 K=0
CMYK
PROCESS
0.000000
100.000000
100.000000
0.000000
C=0 M=75 Y=100 K=0
CMYK
PROCESS
0.000000
75.000000
100.000000
0.000000
C=0 M=10 Y=95 K=0
CMYK
PROCESS
0.000000
10.000000
95.000000
0.000000
C=85 M=10 Y=100 K=0
CMYK
PROCESS
85.000000
10.000000
100.000000
0.000000
C=100 M=90 Y=0 K=0
CMYK
PROCESS
100.000000
90.000000
0.000000
0.000000
C=60 M=90 Y=0 K=0
CMYK
PROCESS
60.000000
90.000000
0.003100
0.003100
Adobe PDF library 15.00
endstream
endobj
3 0 obj
<>
endobj
5 0 obj
<>/Resources<>/ExtGState<>/Properties<>/XObject<>>>/Thumb 18 0 R/TrimBox[0.0 0.0 841.89 595.276]/Type/Page>>
endobj
6 0 obj
<>stream
HW=$
Wy$~>N@eW9v.I*/%h4o~|!͇4ˇtqOm^s=c*~̧QcPO_?0vx;QL[r̎fn?sX0ztr;9bc^Z6NNW{f=x:9Ӹr6p}z)47ҡzV3Vsz/w+\,g,^L_X<ϣ#j$+3irxeF~i1Z}{#7Vߘ8,gFjqc|n(z1;
9f84#7O3mnP [898ym-EnQP3T+Q%F=_1VڒUU*y7{HbW>1~g"XFר5n,d :
Ÿ@LMË1m,Ez˙SUEeqXS-~S[W<&zP&Ƒ