Global

Methods

constructor(permissions, userPassword, ownerPassword, fileId)

Source:

Initializes encryption settings

Example
var security = new PDFSecurity(["print"])
Parameters:
Name Type Description
permissions Array

Permissions allowed for user, "print", "modify", "copy" and "annot-forms".

userPassword String

Permissions apply to this user. Leaving this empty means the document is not password protected but viewer has the above permissions.

ownerPassword String

Owner has full functionalities to the file.

fileId String

As hex string, should be same as the file ID in the trailer.

encryptor(objectId, generation) → {function}

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Returns an encryptor function which can take in a byte string and returns the encrypted version

Example
out("stream");
encryptor = security.encryptor(object.id, 0);
out(encryptor(data));
out("endstream");
Parameters:
Name Type Description
objectId number
generation number

Not sure what this is for, you can set it to 0

Returns:
Type
function

hexToBytes(hex) → {String}

Source:

Converts a hex string to a byte string

Parameters:
Name Type Description
hex String

Hex string

Returns:
Type
String

lsbFirstWord(data) → {Array}

Source:

Breaks down a 4-byte number into its individual bytes, with the least significant bit first

Parameters:
Name Type Description
data number

32-bit number

Returns:
Type
Array

mapArrayBufferViews()

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Helper function that maps ArrayBufferViews to ArrayBuffers Used by BlobBuilder constructor and old browsers that didn't support it in the Blob constructor.

md5cycle()

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License:
  • Joseph Myers does not specify a particular license for his work. Author: Joseph Myers Accessed from: http://www.myersdaily.org/joseph/javascript/md5.js Modified by: Owen Leong

processOwnerPassword(paddedUserPassword, paddedOwnerPassword) → {String}

Source:

Computes the 'O' field in the encryption dictionary

Parameters:
Name Type Description
paddedUserPassword String

Byte string of padded user password

paddedOwnerPassword String

Byte string of padded owner password

Returns:
Type
String

rc4(key, data) → {string}

Source:

Converts a byte string to a hex string

Parameters:
Name Type Description
key string

Byte string of encryption key

data string

Byte string of data to be encrypted

Returns:

Encrypted string

Type
string

repeat()

Source:
License:
  • FPDF is released under a permissive license: there is no usage restriction. You may embed it freely in your application (commercial or not), with or without modifications. Reference: http://www.fpdf.org/en/script/script37.php

RGBColor()

Source:
Author:
License:
  • Use it if you like it

A class to parse color values

Sets options for Bidi conversion(:)

Source:
Parameters:
Name Type Description
: Object
  • isInputVisual {boolean} (defaults to false): allowed values: true(Visual mode), false(Logical mode)
  • isInputRtl {boolean}: allowed values true(Right-to-left direction), false (Left-to-right directiion), undefined(Contectual direction, i.e.direction defined by first strong character of input string)
  • isOutputVisual {boolean} (defaults to false): allowed values: true(Visual mode), false(Logical mode)
  • isOutputRtl {boolean}: allowed values true(Right-to-left direction), false (Left-to-right directiion), undefined(Contectual direction, i.e.direction defined by first strong characterof input string)
  • isSymmetricSwapping {boolean} (defaults to false): allowed values true(needs symmetric swapping), false (no need in symmetric swapping),

toHexString(byteString) → {String}

Source:

Converts a byte string to a hex string

Parameters:
Name Type Description
byteString String

Byte string

Returns:
Type
String

Type Definitions

ApiSwitchBody(pdf)

Source:
Parameters:
Name Type Description
pdf jsPDF

PatternData

Source:

{Matrix|undefined} matrix {Number|undefined} xStep {Number|undefined} yStep {Array.|undefined} boundingBox

Type:
  • Object