Module: HexaPDF::Encryption::StandardSecurityHandler::Permissions

Defined in:: lib/hexapdf/encryption/standard_security_handler.rb

Overview

Defines all available permissions.

It is possible to use an array of permission symbols instead of an integer to describe the permission set. The used symbols are the lower case versions of the constants, i.e. the symbol for MODIFY_CONSTANT would be :modify_constant.

See: PDF1.7 s7.6.3.2

Constant Summary collapse

PRINT = Printing (if HIGH_QUALITY_PRINT is also set, then high quality printing is allowed)

1 << 2

MODIFY_CONTENT = Modification of the content by operations that are different from those controller by MODIFY_ANNOTATION, FILL_IN_FORMS and ASSEMBLE_DOCUMENT

1 << 3

COPY_CONTENT = Copying of content

1 << 4

MODIFY_ANNOTATION = Modifying annotations

1 << 5

FILL_IN_FORMS = Filling in form fields

1 << 8

EXTRACT_CONTENT = Extracting content

1 << 9

ASSEMBLE_DOCUMENT = Assembling of the document (inserting, rotating or deleting of pages and creation of bookmarks or thumbnail images)

1 << 10

HIGH_QUALITY_PRINT = High quality printing

1 << 11

ALL = Allows everything

PRINT | MODIFY_CONTENT | COPY_CONTENT | MODIFY_ANNOTATION | FILL_IN_FORMS |
EXTRACT_CONTENT | ASSEMBLE_DOCUMENT | HIGH_QUALITY_PRINT

RESERVED = Reserved permission bits

0xFFFFF000 | 0b11000000

SYMBOL_TO_PERMISSION = Maps permission symbols to their respective value

{
  print: PRINT,
  modify_content: MODIFY_CONTENT,
  copy_content: COPY_CONTENT,
  modify_annotation: MODIFY_ANNOTATION,
  fill_in_forms: FILL_IN_FORMS,
  extract_content: EXTRACT_CONTENT,
  assemble_document: ASSEMBLE_DOCUMENT,
  high_quality_print: HIGH_QUALITY_PRINT,
}.freeze

PERMISSION_TO_SYMBOL = Maps a permission value to its symbol

{
  PRINT => :print,
  MODIFY_CONTENT => :modify_content,
  COPY_CONTENT => :copy_content,
  MODIFY_ANNOTATION => :modify_annotation,
  FILL_IN_FORMS => :fill_in_forms,
  EXTRACT_CONTENT => :extract_content,
  ASSEMBLE_DOCUMENT => :assemble_document,
  HIGH_QUALITY_PRINT => :high_quality_print,
}.freeze