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If you have a problem understanding how the hook works, check: Hook's mechanism

Basic information

Available from version: 1.0.0

Description

Hook places a watermark on the document as it is displayed. This hook is implemented based on the definition of the ReadFileHookAdapter system hook, which allows to change the binary stream of the displayed document from archive or in preview in the process. Configuration of the watermark insert hook is defined in JSON format as a list and is managed by the PCM (Plugin Configuration Manager). A watermark is placed on every page of the document.

Configuration parameters

Parameter name in JSON configuration

From version

Description

Paremeter type

Comments and restrictions

documentClassId*

1.0.0

The document class id indicates for which documents the watermark insertion parameters are to be considered.

Integer

 

watermark

type*

1.0.0Specifies what type of watermark is.Text
ValueMeaning
BARCODEEncodes the value of the text parameter into a barcode with the specified format defined in the format parameter. The watermark on the document is a barcode.
TEXTThe value of the text parameter is applied to the document as an explicit, unencoded watermark.

watermark

text*

1.0.0

Takes the text value that is used to create the watermark. In order to use document index values, the index id should be enclosed in curly braces {}. It is possible to use more than one index value in a parameter. Each subsequent index must be followed by curly braces.

Example.

Case number: "{8}, Registration Date {9}"

Watermark text ->

Case number: 433589, Registration Date: 13-02-2021

 

Text

Any typed index ids in the text string must exist in the document class specified by the documentClass parameter. If the document being viewed does not contain an index value (it is empty) whose id is given in curly braces in this parameter, the id will be replaced with the empty string "".

watermark

positionX%*

1.0.0Indicates the X (horizontal) position of the watermark in percent relative to the document page dimensions.IntegerThe position is counted from the left edge (0%) to the right edge of the page (100%).

watermark

positionY%*

1.0.0Indicates the Y (vertical) position of the watermark in percent relative to the document page dimensions.IntegerThe position is counted from the top edge (0%) to the bottom edge of the page (100%).

watermark

opacity*

1.0.0Specifies the transparency of the inserted watermark on the pages of the document.FloatValue between 0.0 and 1.0.

watermark

alignment*

1.0.0Specifies the position of the watermark in relation to the corresponding corner of the watermark.Text
ValueMeaning
BOTTOM_LEFT

The position of the watermark in relation to the lower left corner of the watermark.

watermark

watermarkBarcode

format

1.0.0Specifies standard for one-dimensional barcodes (writing information on one line, in the form of dashes). Text
ValueMeaning
CODE_39

Barcode with variable-length alphanumeric characters to store 43 different characters. Each sign consists of 9 elements (light and dark bars), 3 of which are significantly wider. This format allows you to encode numbers, capital letters and characters (-, ., (Space), $, /, +,%, *).

Char
Value
Char
Value
Char
Value
Char
Value
0
0
B
11
M
22
X
33
1
1
C
12
N
23
Y
34
2
2
D
13
O
24
Z
35
3
3
E
14
P
25
-
36
4
4
F
15
Q
26
.
37
5
5
G
16
R
27
space
38
6
6
H
17
S
28
$
39
7
7
I
18
T
29
/
40
8
8
J
19
U
30
+
41
9
9
K
20
V
31
%
42
A
10
L
21
W
32
  

CODE_93

The barcode is an improvement of the CODE_39 format. Like its prototype, it stores 43 alphanumeric characters, but additionally has 4 control characters (($), (%), (/), (+)).
The code accepts only uppercase letters.

 Char
Value
Char
Value
Char
Value
Char
Value
0
0
C
12
O
24
-
36
1
1
D
13
P
25
.
37
2
2
E
14
Q
26
space
38
3
3
F
15
R
27
$
39
4
4
G
16
S
28
/
40
5
5
H
17
T
29
+
41
6
6
I
18
U
30
%
42
7
7
J
19
V
31
($)
43
8
8
K
20
W
32
(%)
44
9
9
L
21
X
33
(/)
45
A
10
M
22
Y
34
(+)
46
B
11
N
23
Z
35
  

Code 93

CODE_128

Variable length, high density alphanumeric code. It can encode characters from the entire ASCII range.

watermark

watermarkBarcode

codeWidth

1.0.0Defines the width of the barcode in pixels.IntegerThe parameter does not define the maximum width of the barcode - in the case when the substituted value turns out to be too long, the width will be automatically increased.

watermark

watermarkBarcode

codeHeight

1.0.0Defines the height of the barcode in pixels.Integer 

watermark

watermarkText

size

1.0.0Text size.Float 

watermark

watermarkText

encoding

1.0.0Character encoding.Text
ValueMeaning
CP1250A code page for the representation of texts in Central European languages using the Latin alphabet, for example Albanian, Croatian, Czech, Polish, Romanian, Slovak, Slovenian, Hungarian.
CP1252A code page to represent texts in Western European languages.
CP1257A code page used to represent texts in Estonian, Lithuanian or Latvian. This set is largely compatible with ISO 8859-13, and is suitable for coding the Polish language.
MACROMANCharacter encoding mainly used in classic Mac OS to represent text. It encodes 256 characters, the first 128 of which are identical to ASCII and the remaining characters include math symbols, diacritics, and additional punctuation marks. It is suitable for English and several other Western languages.

watermark

watermarkText

color

1.0.0The color of the text.Text
ValueMeaning
WHITEWhite
LIGHT_GRAYLight gray
GRAYGray
DARK_GRAYDark gray
BLACKBlack
REDRed
PINKPink
ORANGEOrange
YELLOWYellow
GREENGreen
MAGENTAMagenta
CYANCyan
BLUEBlue

watermark

watermarkText

fontType

1.0.0Text font type.Text
ValueMeaning
COURIERCourier
COURIER_BOLDCourier Bold
COURIER_OBLIQUECourier Oblique
COURIER_BOLDOBLIQUECourier Bold Oblique
HELVETICAHelvetica
HELVETICA_BOLDHelvetica Bold
HELVETICA_OBLIQUEHelvetica Oblique
HELVETICA_BOLDOBLIQUEHelvetica Bold Oblique
SYMBOLSymbol
TIMES_ROMANTimes Roman
TIMES_BOLDTimes Bold
TIMES_ITALICTimes Italic
TIMES_BOLDITALICTimes Bold Italic
ZAPFDINGBATSZapf Dingbats

watermark

watermarkText

rotation

1.0.0Watermark rotation.FloatThe value between 0.0 and 360.0.

Permissions

groups

1.0.0Permissions defining for which users logged in to the system the hook will be run when trying to open a document.Array of text valuesOptional parameter, when is not filled, everyone can see the watermark.
Configuration example

 

[
  {
   "documentClassId": 5,
   "watermark": {
        "type": "TEXT",
        "text": "Case number: {10}, Registration date: {11}",
        "positionX%": 5,
        "positionY%": 5,
        "opacity": 0.7,
        "alignment": "BOTTOM_LEFT",
        "watermarkText":{
            "size": 15,
            "encoding": "CP1252",
            "color": "LIGHT_GRAY",
            "fontType": "HELVETICA",
            "rotation": 0
        }
    },
   "permissions": {
       "groups": ["Users", "Administrators"]  
    }
  },
  {
   "documentClassId": 5,
   "watermark": {
        "type": "BARCODE",
        "text": "{10}",
        "positionX%": 80,
        "positionY%": 10,
        "opacity": 0.5,
        "alignment": "BOTTOM_LEFT",
        "watermarkBarcode":{
            "format": "CODE_128",       
            "codeWidth": 50,
            "codeHeight": 15
        }
    },
   "permissions": {
       "groups": ["Users", "Administrators"]  
    }
  }
]
Example of use

Example of use for the above JSON configuration.

Original document:

 After opening:

Change log

1.0.0

  • Hook adding

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