PDF-Class-raku

[Raku PDF Project] / PDF::Class

PDF::Class

This Raku module is the base class for PDF::API6.

PDF::Class provides a set of roles and classes that map to the internal structure of PDF documents; the aim being to make it easier to read, write valid PDF files.

It assists with the construction of PDF documents, providing type-checking and the sometimes finicky serialization rules regarding objects.

Description

The entry point of a PDF document is the trailer dictionary. This is mapped to PDF::Class. It contains a Root entry which is mapped to a PDF::Catalog objects, and may contain other entries, including an Info entry mapped to a PDF::Info object.

    use PDF::Class;
    use PDF::Catalog;
    use PDF::Page;
    use PDF::Info;

    my PDF::Class $pdf .= open: "t/helloworld.pdf";

    # vivify Info entry; set title
    given $pdf.Info //= {} -> PDF::Info $_ {
        .Title = 'Hello World!';
        .ModDate = DateTime.now; # PDF::Class sets this anyway...
    }

    # modify Viewer Preferences
    my PDF::Catalog $catalog = $pdf.Root;
    given $catalog.ViewerPreferences //= {} {
        .HideToolbar = True;
    }

    # add a page ...
    my PDF::Page $new-page = $pdf.add-page;
    $new-page.gfx.say: "New last page!";

    # save the updated pdf
    $pdf.save-as: "tmp/pdf-updated.pdf";

• This module contains definitions for many other standard PDF objects, such as Pages, Fonts and Images, as listed below.
• There is generally a one-to-one correspondence between raw dictionary entries and accessors, e.g. $pdf<Root><AA> versus $pdf.Root.AA.
• There are often accessor aliases, to aide clarity. E.g. $pdf.Root.AA can also be written as $pdf.catalog.additional-actions.
• The classes often contain additional accessor and helper methods. For example $pdf.page(10) - references page 10, without the need to navigate the catalog and page tree.

This module is a work in progress. It currently defines roles and classes for many of the more commonly occurring PDF objects as described in the PDF 32000-1:2008 1.7 specification.

More examples:

Set Marked Info options

    use PDF::Class;
    use PDF::Catalog;
    use PDF::MarkInfo;
    my PDF::Class $pdf .= new;
    my PDF::Catalog $catalog = $pdf.catalog; # same as $pdf.Root;
    with $catalog.MarkInfo //= {} -> PDF::MarkInfo $_ {
        .Marked = True;
        .UserProperties = False;
        .Suspects = False;
    }

Set Page Layout & Viewer Preferences

    use PDF::Class;
    use PDF::Catalog;
    use PDF::Viewer::Preferences;

    my PDF::Class $pdf .= new;

    my PDF::Catalog $doc = $pdf.catalog;
    $doc.PageLayout = 'TwoColumnLeft';
    $doc.PageMode   = 'UseThumbs';

    given $doc.ViewerPreferences //= {} -> PDF::Viewer::Preferences $_ {
        .Duplex = 'DuplexFlipShortEdge';
        .NonFullScreenPageMode = 'UseOutlines';
    }
    # ...etc, see PDF::ViewerPreferences

List AcroForm Fields

use PDF::Class;
use PDF::AcroForm;
use PDF::Field;

my PDF::Class $doc .= open: "t/pdf/samples/OoPdfFormExample.pdf";
with my PDF::AcroForm $acroform = $doc.catalog.AcroForm {
    my PDF::Field @fields = $acroform.fields;
    # display field names and values
    for @fields -> $field {
        say "{$field.key}: {$field.value}";
    }
}

Gradual Typing

In theory, we should always be able to use PDF::Class accessors for structured access and updating of PDF objects.

In reality, a fair percentage of PDF files contain at least some conformance issues (as reported by pdf-checker.raku) and PDF::Class itself is under development.

For these reasons it possible to bypass PDF::Class accessors; instead accessing hashes and arrays directly, giving raw access to the PDF data.

This will also bypass type coercements, so you may need to be more explicit. In the following example forces the setting of PageMode to an illegal value.

    use PDF::Class;
    use PDF::Catalog;
    use PDF::COS::Name;
    my PDF::Class $pdf .= new;

    my PDF::Catalog $doc = $pdf.catalog;
    try {
        $doc.PageMode = 'UseToes'; # illegal
        CATCH { default { say "err, that didn't work: $_" } }
    }

    # same again, bypassing type checking
    $doc<PageMode> = PDF::COS::Name.COERCE: 'UseToes';

Scripts in this Distribution

pdf-append.raku --save-as=output.pdf in1.pdf in2.pdf ...

appends PDF files.

pdf-burst.raku --save-as=basename-%03d.pdf --password=pass in.pdf

bursts a multi-page PDF into single page PDF files

pdf-checker.raku --trace --render --strict --exclude=Entry1,Entry2 --repair input-pdf

This is a low-level tool for PDF authors and users. It traverses a PDF, checking it’s internal structure against PDF:Class definitions as derived from the PDF 32000-1:2008 1.7 specification.

• --trace print a dump of PDF Objects as the file is traversed
• --render also render and check the contents of graphical objects, such as Pages and XObject forms
• --strict perform additional checks:
• --repair repair PDF before Checking

Example 1: Dump a simple PDF

% pdf-checker.raku --trace t/helloworld.pdf
xref:   << /ID ... /Info 1 0 R /Root 2 0 R >>   % PDF::Class
  /ID:  [ "×C¨\x[86]üÜø\{iÃeH!\x[9E]©A" "×C¨\x[86]üÜø\{iÃeH!\x[9E]©A" ] % PDF::COS::Array[Str]
  /Info:        << /Author "t/helloworld.t" /CreationDate (D:20151225000000Z00'00') /Creator "PDF::Class" /Producer "Raku PDF::Class 0.2.5" >>        % PDF::COS::Dict+{PDF::Info}
  /Root:        << /Type /Catalog /Pages 3 0 R >>       % PDF::Catalog
    /Pages:     << /Type /Pages /Count 1 /Kids ... /Resources ... >>    % PDF::Pages
      /Kids:    [ 4 0 R ]       % PDF::COS::Array[PDF::Content::PageNode]
        [0]:    << /Type /Page /Contents 5 0 R /MediaBox ... /Parent 3 0 R >>   % PDF::Page
          /Contents:    << /Length 1944 >>      % PDF::COS::Stream
          /MediaBox:    [ 0 0 595 842 ] % PDF::COS::Array[Numeric]
      /Resources:       << /ExtGState ... /Font ... /ProcSet ... /XObject ... >>        % PDF::COS::Dict+{PDF::Resources}
        /ExtGState:     << /GS1 6 0 R >>        % PDF::COS::Dict[Hash]
          /GS1: << /Type /ExtGState /ca 0.5 >>  % PDF::COS::Dict+{PDF::ExtGState}
        /Font:  << /F1 7 0 R /F2 8 0 R /F3 9 0 R >>     % PDF::COS::Dict[PDF::Resources::Font]
          /F1:  << /Type /Font /Subtype /Type1 /BaseFont /Helvetica-Bold /Encoding /WinAnsiEncoding >>  % PDF::Font::Type1
          /F2:  << /Type /Font /Subtype /Type1 /BaseFont /Helvetica /Encoding /WinAnsiEncoding >>       % PDF::Font::Type1
          /F3:  << /Type /Font /Subtype /Type1 /BaseFont /ZapfDingbats >>       % PDF::Font::Type1
        /ProcSet:       [ /PDF /Text ]  % PDF::COS::Array[PDF::COS::Name]
        /XObject:       << /Im1 10 0 R /Im2 11 0 R >>   % PDF::COS::Dict[PDF::Resources::XObject]
          /Im1: << /Type /XObject /Subtype /Image /BitsPerComponent 8 /ColorSpace /DeviceRGB /Filter /DCTDecode /Height 254 /Width 200 /Length 8247 >>  % PDF::XObject::Image
          /Im2: << /Type /XObject /Subtype /Image /BitsPerComponent 8 /ColorSpace ... /Height 42 /Width 37 /Length 1554 >>      % PDF::XObject::Image
            /ColorSpace:        [ /Indexed /DeviceRGB 255 12 0 R ]      % PDF::ColorSpace::Indexed
              [3]:      << /Length 768 >>       % PDF::COS::Stream
Checking of t/helloworld.pdf completed with 0 warnings and 0 errors

This example dumps a PDF and shows how PDF::Class has interpreted it.

• indirect object 1 0 R is a dictionary that has had the PDF::Info role applied
• indirect object 2 0 R has been loaded as a PDF::Catalog object.
• font /F3 is a ZapfDingbats type1 font

The PDF contains has one page (PDF::Page) that references various other objects, such as fonts and xobject images.

Example 2: Check a sample PDF

% wget http://www.stillhq.com/pdfdb/000025/data.pdf
% pdf-checker.raku --strict --render data.pdf
Warning: Error processing indirect object 27 0 R at byte offset 976986:
Ignoring 1 bytes before 'endstream' marker
Rendering warning(s) in 28 0 R (PDF::Page):
-- unexpected operation 'w' (SetLineWidth) used in Path context, following 'm' (MoveTo)
-- unexpected operation 'w' (SetLineWidth) used in Path context, following 'm' (MoveTo)
Rendering warning(s) in 30 0 R  (PDF::XObject::Form):
-- unexpected operation 'w' (SetLineWidth) used in Path context, following 'm' (MoveTo)
Unknown entries 1 0 R (PDF::Catalog) struct: /ViewPreferences(?ViewerPreferences)
Checking of /home/david/Documents/test-pdf/000025.pdf completed with 5 warnings and 0 errors

In this example:

• Object 28 0 R had an extra byte in its stream data.
• Some Page and XObject graphics operations were not in the expected order, (as outlined in PDF 32000 Figure 9 – Graphics Objects).
• The Catalog dictionary had an unexpected /ViewPreferences entry (It should be /ViewerPreferences, see PDF::Catalog).

Notes

• A message such as No handler class PDF::Filespec, usually indicates the the object has not yet been implemented in PDF::Class.

pdf-content-dump.raku --raku in.pdf

Displays the content streams for PDF pages, commented, and in a human-readable format:

% pdf-content-dump.raku t/example.pdf 
% **** Page 1 ****
BT % BeginText
  1 0 0 1 100 150 Tm % SetTextMatrix
  /F1 16 Tf % SetFont
  17.6 TL % SetTextLeading
  [ (Hello, world!) ] TJ % ShowSpaceText
  T* % TextNextLine
ET % EndText

The --raku option dumps using a Raku-like notation:

pdf-content-dump.raku --perl t/example.pdf 
# **** Page 1 ****
.BeginText();
  .SetTextMatrix(1, 0, 0, 1, 100, 150);
  .SetFont("F1", 16);
  .SetTextLeading(17.6);
  .ShowSpaceText($["Hello, world!"]);
  .TextNextLine();
.EndText();

pdf-info.raku in.pdf

Prints various PDF properties. For example:

% pdf-info.raku ~/Documents/test-pdfs/stillhq.com/000056.pdf 
File:         /home/david/Documents/test-pdfs/stillhq.com/000056.pdf
File Size:    63175 bytes
Pages:        2
Outlines:     no
Author:       Prince Restaurant
CreationDate: Wed Oct 03 23:41:01 2001
Creator:      FrameMaker+SGML 6.0
Keywords:     Pizza, Pasta, Antipasto, Lasagna, Food
ModDate:      Thu Oct 04 00:03:04 2001
Producer:     Acrobat PDFWriter 4.05  for Power Macintosh
Subject:      Take Out & Catering Menu
Title:        Prince Pizzeria & Bar
Tagged:       no
Page Size:    variable
PDF version:  1.3
Revisions:    1
Encryption:   no

pdf-fields.raku --password=pass --page=n --save-as=out.pdf [options] in.pdf

Modes

• –list [–labels] % list fields and current values
• –fill [–labels] key value … % fill fields from keys and values
• –slice=i value value … % set consecutive fields from values
• –reset [-/reformat] [-triggers] % reset fields. Defaults: remove formats, keep triggers

General Options:

• –page=n select nth page
• –save-as=out.pdf save to a file
• –password provide user/owner password for an encrypted PDF

List, reformat or set PDF form fields.

pdf-revert.raku --password=pass --save-as=out.pdf in.pdf

undoes the last revision of an incrementally saved PDF file.

pdf-toc.raku --password=pass --/title --/labels in.pdf

prints a table of contents, showing titles and page-numbers, using PDF outlines.

% wget http://www.stillhq.com/pdfdb/000432/data.pdf
% pdf-toc.raku data.pdf
Linux Kernel Modules Installation HOWTO
  Table of Contents . . . i
  1. Purpose of this Document . . . 1
  2. Pre-requisites . . . 2
  3. Compiler Speed-up . . . 3
  4. Recompiling the Kernel for Modules . . . 4
    5.1. Configuring Debian or RedHat for Modules . . . 5
    5.2. Configuring Slackware for Modules . . . 5
    5.3. Configuring Other Distributions for Modules . . . 6

Note that outlines are an optional PDF feature. pdf-info.raku can be used to check if a PDF has them:

% pdf-info.raku my-doc.pdf | grep Outlines:

Development Status

The PDF::Class module is under construction and not yet functionally complete.

Note: The roles and classes in this module are primarly based on roles generated by the PDF::ISO_32000 module. The PDF::class module currently implements around 100 roles and classes of the 350+ objects extracted by PDF::ISO_32000.

See also

• PDF::Lite - A Lite-weight alternative
• PDF::API6 - general purpose PDF manipulation, based on this module (PDF::Class)
• PDF::ISO_32000 - A set of interface roles that have been mined from the PDF 32000 specification, e.g. ISO_32000::Table_28-Entries_in_the_catalog_dictionary.

Classes Quick Reference

Class	Types	Accessors	Methods	Description	ISO-32000 References
PDF::Class	dict	Encrypt, ID, Info, Prev, Root(catalog), Size	Blob, Pages, add-page, add-pages, art-box, ast, bleed, bleed-box, core-font, creator, crop-box, crypt, delete-page, encrypt, fields, fields-hash, id, insert-page, iterate-pages, media-box, open, page, page-count, pages, permitted, save-as, trim-box, update, use-font, version	PDF entry-point. either a trailer dict or an XRef stream	ISO_32000::Table_15-Entries_in_the_file_trailer_dictionary
PDF::AcroForm	dict	CO(calculation-order), DA(default-appearance), DR(default-resources), Fields, NeedAppearances, Q(quadding), SigFlags, XFA	fields, take-fields	AcroForm role - see PDF::Catalog - /AcroForm entry	ISO_32000::Table_218-Entries_in_the_interactive_form_dictionary
PDF::Action::GoTo	dict	D(destination), Next, S(subtype), Type(type)		/Action Subtype - GoTo	ISO_32000::Table_199-Additional_entries_specific_to_a_go-to_action ISO_32000::Table_193-Entries_common_to_all_action_dictionaries
PDF::Action::GoToR	dict	D(destination), F(file), NewWindow, Next, S(subtype), Type(type)		/Action Subtype - GoToR	ISO_32000::Table_200-Additional_entries_specific_to_a_remote_go-to_action ISO_32000::Table_193-Entries_common_to_all_action_dictionaries
PDF::Action::JavaScript	dict	JS(java-script), Next, S(subtype), Type(type)		/Action Subtype - GoTo	ISO_32000::Table_217-Additional_entries_specific_to_a_JavaScript_action ISO_32000::Table_193-Entries_common_to_all_action_dictionaries
PDF::Action::Launch	dict	F(file), Mac, NewWindow, Next, S(subtype), Type(type), Unix, Win		/Action Subtype - Launch	ISO_32000::Table_203-Additional_entries_specific_to_a_launch_action ISO_32000::Table_193-Entries_common_to_all_action_dictionaries
PDF::Action::Named	dict	N(action-name), Next, S(subtype), Type(type)		/Action Subtype - GoTo	ISO_32000::Table_212-Additional_entries_specific_to_named_actions ISO_32000::Table_193-Entries_common_to_all_action_dictionaries
PDF::Action::Sound	dict	Mix, Next, Repeat, S(subtype), Sound, Synchronous, Type(type), Volume		/Action Subtype - Sound	ISO_32000::Table_208-Additional_entries_specific_to_a_sound_action ISO_32000::Table_193-Entries_common_to_all_action_dictionaries
PDF::Action::SubmitForm	dict	Fields, Flags, Next, S(subtype), Type(type)		/Action Subtype - URI	ISO_32000::Table_236-Additional_entries_specific_to_a_submit-form_action ISO_32000::Table_193-Entries_common_to_all_action_dictionaries
PDF::Action::Thread	dict	B(bead), D(thread), F(file), Next, S(subtype), Type(type)		/Action Subtype - Thread	ISO_32000::Table_205-Additional_entries_specific_to_a_thread_action ISO_32000::Table_193-Entries_common_to_all_action_dictionaries
PDF::Action::URI	dict	IsMap, Next, S(subtype), Type(type), URI		/Action Subtype - URI	ISO_32000::Table_206-Additional_entries_specific_to_a_URI_action ISO_32000::Table_193-Entries_common_to_all_action_dictionaries
PDF::Annot::AdditionalActions	dict	Bl(blur), D(mouse-down), E(enter), Fo(focus), PC(page-close), PI(page-invisable), PO(page-open), PV(page-visable), U(mouse-up), X(exit)
PDF::Annot::Caret	dict	AP(appearance), AS(appearance-state), Border, C(color), CA(constant-opacity), Contents(content), CreationDate, DR(default-resources), ExData(external-data), F(annot-flags), FT(field-type), IRT(reply-to-ref), IT(intent), M(mod-time), NM(annotation-name), OC(optional-content), P(page), Popup, RC(rich-text), RD(rectangle-differences), RT(reply-type), Rect(rect), StructParent(struct-parent), Subj, Subtype(subtype), Sy(symbol), T(text-label), Type(type)	annots		ISO_32000::Table_180-Additional_entries_specific_to_a_caret_annotation ISO_32000::Table_170-Additional_entries_specific_to_markup_annotations ISO_32000::Table_164-Entries_common_to_all_annotation_dictionaries
PDF::Annot::Circle	dict	AP(appearance), AS(appearance-state), BE(border-effect), BS(border-style), Border, C(color), CA(constant-opacity), Contents(content), CreationDate, DR(default-resources), ExData(external-data), F(annot-flags), FT(field-type), IC(interior-color), IRT(reply-to-ref), IT(intent), M(mod-time), NM(annotation-name), OC(optional-content), P(page), Popup, RC(rich-text), RD(rectangle-differences), RT(reply-type), Rect(rect), StructParent(struct-parent), Subj, Subtype(subtype), T(text-label), Type(type)	annots		ISO_32000::Table_177-Additional_entries_specific_to_a_square_or_circle_annotation ISO_32000::Table_170-Additional_entries_specific_to_markup_annotations ISO_32000::Table_164-Entries_common_to_all_annotation_dictionaries
PDF::Annot::FileAttachment	dict	AP(appearance), AS(appearance-state), Border, C(color), CA(constant-opacity), Contents(content), CreationDate, DR(default-resources), ExData(external-data), F(annot-flags), FS(file-spec), FT(field-type), IRT(reply-to-ref), IT(intent), M(mod-time), NM(annotation-name), Name(icon-name), OC(optional-content), P(page), Popup, RC(rich-text), RT(reply-type), Rect(rect), StructParent(struct-parent), Subj, Subtype(subtype), T(text-label), Type(type)	annots		ISO_32000::Table_184-Additional_entries_specific_to_a_file_attachment_annotation ISO_32000::Table_170-Additional_entries_specific_to_markup_annotations ISO_32000::Table_164-Entries_common_to_all_annotation_dictionaries
PDF::Annot::Highlight	dict	AP(appearance), AS(appearance-state), Border, C(color), CA(constant-opacity), Contents(content), CreationDate, DR(default-resources), ExData(external-data), F(annot-flags), FT(field-type), IRT(reply-to-ref), IT(intent), M(mod-time), NM(annotation-name), OC(optional-content), P(page), Popup, QuadPoints, RC(rich-text), RT(reply-type), Rect(rect), StructParent(struct-parent), Subj, Subtype(subtype), T(text-label), Type(type)	annots		ISO_32000::Table_170-Additional_entries_specific_to_markup_annotations ISO_32000::Table_164-Entries_common_to_all_annotation_dictionaries
PDF::Annot::Link	dict	A(action), AP(appearance), AS(appearance-state), BS(border-style), Border, C(color), CA(constant-opacity), Contents(content), CreationDate, DR(default-resources), Dest(destination), ExData(external-data), F(annot-flags), FT(field-type), H(highlight-mode), IRT(reply-to-ref), IT(intent), M(mod-time), NM(annotation-name), OC(optional-content), P(page), PA(uri-action), Popup, QuadPoints, RC(rich-text), RT(reply-type), Rect(rect), StructParent(struct-parent), Subj, Subtype(subtype), T(text-label), Type(type)	annots		ISO_32000::Table_173-Additional_entries_specific_to_a_link_annotation ISO_32000::Table_170-Additional_entries_specific_to_markup_annotations ISO_32000::Table_164-Entries_common_to_all_annotation_dictionaries
PDF::Annot::Popup	dict	AP(appearance), AS(appearance-state), Border, C(color), Contents(content), DR(default-resources), F(annot-flags), FT(field-type), M(mod-time), NM(annotation-name), OC(optional-content), Open, P(page), Parent, Rect(rect), StructParent(struct-parent), Subtype(subtype), Type(type)	annots		ISO_32000::Table_183-Additional_entries_specific_to_a_pop-up_annotation ISO_32000::Table_164-Entries_common_to_all_annotation_dictionaries
PDF::Annot::Square	dict	AP(appearance), AS(appearance-state), BE(border-effect), BS(border-style), Border, C(color), CA(constant-opacity), Contents(content), CreationDate, DR(default-resources), ExData(external-data), F(annot-flags), FT(field-type), IC(interior-color), IRT(reply-to-ref), IT(intent), M(mod-time), NM(annotation-name), OC(optional-content), P(page), Popup, RC(rich-text), RD(rectangle-differences), RT(reply-type), Rect(rect), StructParent(struct-parent), Subj, Subtype(subtype), T(text-label), Type(type)	annots		ISO_32000::Table_177-Additional_entries_specific_to_a_square_or_circle_annotation ISO_32000::Table_170-Additional_entries_specific_to_markup_annotations ISO_32000::Table_164-Entries_common_to_all_annotation_dictionaries
PDF::Annot::Squiggly	dict	AP(appearance), AS(appearance-state), Border, C(color), CA(constant-opacity), Contents(content), CreationDate, DR(default-resources), ExData(external-data), F(annot-flags), FT(field-type), IRT(reply-to-ref), IT(intent), M(mod-time), NM(annotation-name), OC(optional-content), P(page), Popup, QuadPoints, RC(rich-text), RT(reply-type), Rect(rect), StructParent(struct-parent), Subj, Subtype(subtype), T(text-label), Type(type)	annots		ISO_32000::Table_170-Additional_entries_specific_to_markup_annotations ISO_32000::Table_164-Entries_common_to_all_annotation_dictionaries
PDF::Annot::StrikeOut	dict	AP(appearance), AS(appearance-state), Border, C(color), CA(constant-opacity), Contents(content), CreationDate, DR(default-resources), ExData(external-data), F(annot-flags), FT(field-type), IRT(reply-to-ref), IT(intent), M(mod-time), NM(annotation-name), OC(optional-content), P(page), Popup, QuadPoints, RC(rich-text), RT(reply-type), Rect(rect), StructParent(struct-parent), Subj, Subtype(subtype), T(text-label), Type(type)	annots		ISO_32000::Table_170-Additional_entries_specific_to_markup_annotations ISO_32000::Table_164-Entries_common_to_all_annotation_dictionaries
PDF::Annot::Text	dict	AP(appearance), AS(appearance-state), Border, C(color), CA(constant-opacity), Contents(content), CreationDate, DR(default-resources), ExData(external-data), F(annot-flags), FT(field-type), IRT(reply-to-ref), IT(intent), M(mod-time), NM(annotation-name), Name(icon-name), OC(optional-content), Open, P(page), Popup, RC(rich-text), RT(reply-type), Rect(rect), State, StateModel, StructParent(struct-parent), Subj, Subtype(subtype), T(text-label), Type(type)	annots	/Type Annot - Annotation subtypes See [PDF 32000 Section 12.5 Annotations]	ISO_32000::Table_172-Additional_entries_specific_to_a_text_annotation ISO_32000::Table_170-Additional_entries_specific_to_markup_annotations ISO_32000::Table_164-Entries_common_to_all_annotation_dictionaries
PDF::Annot::ThreeD	dict	3DA(activation), 3DB(view-box), 3DD(artwork), 3DI(interactive), 3DV(default-view), AP(appearance), AS(appearance-state), Border, C(color), Contents(content), DR(default-resources), F(annot-flags), FT(field-type), M(mod-time), NM(annotation-name), OC(optional-content), P(page), Rect(rect), StructParent(struct-parent), Subtype(subtype), Type(type)	annots		ISO_32000::Table_298-Additional_entries_specific_to_a_ThreeD_annotation ISO_32000::Table_164-Entries_common_to_all_annotation_dictionaries
PDF::Annot::Underline	dict	AP(appearance), AS(appearance-state), Border, C(color), CA(constant-opacity), Contents(content), CreationDate, DR(default-resources), ExData(external-data), F(annot-flags), FT(field-type), IRT(reply-to-ref), IT(intent), M(mod-time), NM(annotation-name), OC(optional-content), P(page), Popup, QuadPoints, RC(rich-text), RT(reply-type), Rect(rect), StructParent(struct-parent), Subj, Subtype(subtype), T(text-label), Type(type)	annots		ISO_32000::Table_170-Additional_entries_specific_to_markup_annotations ISO_32000::Table_164-Entries_common_to_all_annotation_dictionaries
PDF::Annot::Widget	dict	A(action), AA(additional-actions), AP(appearance), AS(appearance-state), BS(border-style), Border, C(color), Contents(content), DR(default-resources), F(annot-flags), FT(field-type), H(highlight-mode), M(mod-time), MK, NM(annotation-name), OC(optional-content), P(page), Parent, Rect(rect), StructParent(struct-parent), Subtype(subtype), Type(type)	annots		ISO_32000::Table_188-Additional_entries_specific_to_a_widget_annotation ISO_32000::Table_164-Entries_common_to_all_annotation_dictionaries
PDF::Annot::_Markup	dict	AP(appearance), AS(appearance-state), Border, C(color), CA(constant-opacity), Contents(content), CreationDate, DR(default-resources), ExData(external-data), F(annot-flags), FT(field-type), IRT(reply-to-ref), IT(intent), M(mod-time), NM(annotation-name), OC(optional-content), P(page), Popup, RC(rich-text), RT(reply-type), Rect(rect), StructParent(struct-parent), Subj, Subtype(subtype), T(text-label), Type(type)	annots		ISO_32000::Table_170-Additional_entries_specific_to_markup_annotations ISO_32000::Table_164-Entries_common_to_all_annotation_dictionaries
PDF::Annot::_TextMarkup	dict	AP(appearance), AS(appearance-state), Border, C(color), CA(constant-opacity), Contents(content), CreationDate, DR(default-resources), ExData(external-data), F(annot-flags), FT(field-type), IRT(reply-to-ref), IT(intent), M(mod-time), NM(annotation-name), OC(optional-content), P(page), Popup, QuadPoints, RC(rich-text), RT(reply-type), Rect(rect), StructParent(struct-parent), Subj, Subtype(subtype), T(text-label), Type(type)	annots	/Type Annot - Annotation subtypes See [PDF 32000 Section 12.5 Annotations]	ISO_32000::Table_170-Additional_entries_specific_to_markup_annotations ISO_32000::Table_164-Entries_common_to_all_annotation_dictionaries
PDF::Appearance	dict	D(down), N(normal), R(rollover)		Appearance role - see PDF::Annot - /AP entry	ISO_32000::Table_168-Entries_in_an_appearance_dictionary
PDF::Attributes::Layout	dict	BBox, BackgroundColor, BaselineShift, BlockAlign, BorderColor, BorderStyle, BorderThickness, Color, ColumnCount, ColumnGap, ColumnWidths, EndIndent, GlyphOrientationVertical, Height, InlineAlign, LineHeight, O(owner), Padding, Placement, RubyAlign, RubyPosition, SpaceAfter, SpaceBefore, StartIndent, TBorderStyle, TPadding, TextAlign, TextDecorationColor, TextDecorationThickness, TextDecorationType, TextIndent, Width, WritingMode			ISO_32000::Table_327-Entry_common_to_all_attribute_object_dictionaries ISO_32000::Table_343-Standard_layout_attributes_common_to_all_standard_structure_types ISO_32000::Table_344-Additional_standard_layout_attributes_specific_to_block-level_structure_elements ISO_32000::Table_345-Standard_layout_attributes_specific_to_inline-level_structure_elements
PDF::Attributes::List	dict	ListNumbering, O(owner)		Table 347 – Standard list attribute	ISO_32000::Table_327-Entry_common_to_all_attribute_object_dictionaries
PDF::Attributes::PrintField	dict	Desc, O(owner), Role, checked		Table 348 – PrintField attributes	ISO_32000::Table_327-Entry_common_to_all_attribute_object_dictionaries ISO_32000::Table_348-PrintField_attributes
PDF::Attributes::Table	dict	ColSpan, Headers, O(owner), RowSpan, Scope, Summary		Table Table 349 – Standard table attributes	ISO_32000::Table_327-Entry_common_to_all_attribute_object_dictionaries ISO_32000::Table_349-Standard_table_attributes
PDF::Attributes::UserProperties	dict	O(owner), P(properties)	set-attribute		ISO_32000::Table_327-Entry_common_to_all_attribute_object_dictionaries
PDF::Border	dict	D(dash-pattern), S(style), Type, W(width)		/Type /Border	ISO_32000::Table_166-Entries_in_a_border_style_dictionary
PDF::CIDSystemInfo	dict	Ordering, Registry, Supplement			ISO_32000::Table_116-Entries_in_a_CIDSystemInfo_dictionary
PDF::CMap	stream	CIDSystemInfo, CMapName, Type(type), UseCMap, WMode		/Type /CMap	ISO_32000::Table_120-Additional_entries_in_a_CMap_stream_dictionary
PDF::Catalog::AdditionalActions	dict	DP(did-print), DS(did-save), WC(will-close), WP(will-print), WS(will-save)			ISO_32000::Table_197-Entries_in_the_document_catalogs_additional-actions_dictionary
PDF::ColorSpace::CalGray	array	Subtype, dict	BlackPoint, Gamma, WhitePoint, props
PDF::ColorSpace::CalRGB	array	Subtype, dict	BlackPoint, Gamma, Matrix, WhitePoint, props
PDF::ColorSpace::DeviceN	array	AlternateSpace, Attributes, Names, Subtype, TintTransform
PDF::ColorSpace::ICCBased	array	Subtype, dict	Alternate, Metadata, N, Range, props
PDF::ColorSpace::Indexed	array	Base, Hival, Lookup, Subtype
PDF::ColorSpace::Lab	array	Subtype, dict	BlackPoint, Range, WhitePoint, props
PDF::ColorSpace::Pattern	array	Colorspace, Subtype
PDF::ColorSpace::Separation	array	AlternateSpace, Name, Subtype, TintTransform
PDF::Destination	array	fit, page	delegate-destination, is-page-ref
PDF::Encoding	dict	BaseEncoding, Differences, Type		/Type /Encoding	ISO_32000::Table_114-Entries_in_an_encoding_dictionary
PDF::ExData::Markup3D	dict	3DA(activation), 3DV(default-view), MD5, Subtype(subtype), Type(type)			ISO_32000::Table_313-Entries_in_an_external_data_dictionary_used_to_markup_ThreeD_annotations
PDF::ExtGState	dict	AIS(alpha-source-flag), BG(black-generation-old), BG2(black-generation), BM(blend-mode), CA(stroke-alpha), D(dash-pattern), FL(flatness-tolerance), Font, HT(halftone), LC(line-cap), LJ(line-join), LW(line-width), ML(miter-limit), OP(overprint-paint), OPM(overprint-mode), RI(rendering-intent), SA(stroke-adjustment), SM(smoothness-tolerance), SMask(soft-mask), TK(text-knockout), TR(transfer-function-old), TR2(transfer-function), Type, UCR(under-color-removal-old), UCR2(under-color-removal), ca(fill-alpha), op(overprint-stroke)	transparency	/Type /ExtGState	ISO_32000::Table_58-Entries_in_a_Graphics_State_Parameter_Dictionary
PDF::Field::AdditionalActions	dict	C(calculate), F(format), K(change), V(validate)			ISO_32000::Table_196-Entries_in_a_form_fields_additional-actions_dictionary
PDF::Field::Button	dict	AA(additional-actions), DA(default-appearance), DS(default-style), DV(default-value), FT(subtype), Ff(field-flags), Kids, Opt, Parent, Q(quadding), RV(rich-text), T(key), TM(tag), TU(label), V			ISO_32000::Table_227-Additional_entry_specific_to_check_box_and_radio_button_fields
PDF::Field::Choice	dict	AA(additional-actions), DA(default-appearance), DS(default-style), DV(default-value), FT(subtype), Ff(field-flags), I(indices), Kids, Opt, Parent, Q(quadding), RV(rich-text), T(key), TI(top-index), TM(tag), TU(label), V			ISO_32000::Table_231-Additional_entries_specific_to_a_choice_field
PDF::Field::Signature	dict	AA(additional-actions), DA(default-appearance), DS(default-style), FT(subtype), Ff(field-flags), Kids, Lock, Parent, Q(quadding), RV(rich-text), SV(seed-value), T(key), TM(tag), TU(label), V(value)	DV		ISO_32000::Table_232-Additional_entries_specific_to_a_signature_field
PDF::Field::Text	dict	AA(additional-actions), DA(default-appearance), DS(default-style), DV(default-value), FT(subtype), Ff(field-flags), Kids, MaxLen, Parent, Q(quadding), RV(rich-text), T(key), TM(tag), TU(label), V			ISO_32000::Table_229-Additional_entry_specific_to_a_text_field
PDF::Filespec	dict	CI, DOS, Desc, EF(embedded-files), F(file-name), FS(file-system), ID, Mac, RF(related-files), Type(type), UF, Unix, V(volatile)			ISO_32000::Table_44-Entries_in_a_file_specification_dictionary
PDF::Font::CIDFont	dict	BaseFont, CIDSystemInfo, CIDToGIDMap, DW(default-width), DW2(default-width-and-height), FontDescriptor, Subtype(subtype), Type(type), W(widths), W2(heights)	filter, font-name, font-obj, height, kern, make-font, protect, set-font-obj, stringwidth, underline-position, underline-thickness		ISO_32000::Table_117-Entries_in_a_CIDFont_dictionary
PDF::Font::CIDFontType0	dict	BaseFont, CIDSystemInfo, CIDToGIDMap, DW(default-width), DW2(default-width-and-height), FontDescriptor, Subtype(subtype), Type(type), W(widths), W2(heights)	filter, font-name, font-obj, height, kern, make-font, protect, set-font-obj, stringwidth, underline-position, underline-thickness		ISO_32000::Table_117-Entries_in_a_CIDFont_dictionary
PDF::Font::CIDFontType2	dict	BaseFont, CIDSystemInfo, CIDToGIDMap, DW(default-width), DW2(default-width-and-height), FontDescriptor, Subtype(subtype), Type(type), W(widths), W2(heights)	filter, font-name, font-obj, height, kern, make-font, protect, set-font-obj, stringwidth, underline-position, underline-thickness		ISO_32000::Table_117-Entries_in_a_CIDFont_dictionary
PDF::Font::MMType1	dict	BaseFont, Encoding, FirstChar, FontDescriptor, LastChar, Name, Subtype(subtype), ToUnicode, Type(type), Widths	filter, font-name, font-obj, height, kern, make-font, protect, set-font-obj, stringwidth, underline-position, underline-thickness		ISO_32000::Table_111-Entries_in_a_Type_1_font_dictionary
PDF::Font::TrueType	dict	BaseFont, Encoding, FirstChar, FontDescriptor, LastChar, Name, Subtype(subtype), ToUnicode, Type(type), Widths	filter, font-name, font-obj, height, kern, make-font, protect, set-font-obj, stringwidth, underline-position, underline-thickness	TrueType fonts - /Type /Font /Subtype TrueType see [PDF 32000 Section 9.6.3 TrueType Fonts]	ISO_32000::Table_111-Entries_in_a_Type_1_font_dictionary
PDF::FontDescriptor::CID	dict	Ascent, AvgWidth, CIDSet, CapHeight, CharSet, Descent, FD, Flags, FontBBox, FontFamily, FontFile, FontFile2, FontFile3, FontName, FontStretch, FontWeight, ItalicAngle, Lang, Leading, MaxWidth, MissingWidth, StemH, StemV, Style, Type, XHeight			ISO_32000::Table_122-Entries_common_to_all_font_descriptors ISO_32000::Table_124-Additional_font_descriptor_entries_for_CIDFonts
PDF::FontFile	stream	Length1, Length2, Length3, Metadata, Subtype			ISO_32000::Table_127-Additional_entries_in_an_embedded_font_stream_dictionary
PDF::FontStream	dict	Length1, Length2, Length3, Metadata		Target of PDF::FontDescriptor FontFile or FontFile2 Attribute;
PDF::Function::Exponential	stream	C0, C1, Domain, FunctionType, N, Range	calc, calculator	/FunctionType 2 - Exponential	ISO_32000::Table_40-Additional_entries_specific_to_a_type_2_function_dictionary ISO_32000::Table_38-Entries_common_to_all_function_dictionaries
PDF::Function::PostScript	stream	Domain, FunctionType, Range	calc, calculator, parse	/FunctionType 4 - PostScript see [PDF 32000 Section 7.10.5 Type 4 (PostScript Transform) Functions]	ISO_32000::Table_38-Entries_common_to_all_function_dictionaries
PDF::Function::Sampled	stream	BitsPerSample, Decode, Domain, Encode, FunctionType, Order, Range, Size	calc, calculator	/FunctionType 0 - Sampled see [PDF 32000 Section 7.10.2 Type 0 (Sampled) Functions]	ISO_32000::Table_39-Additional_entries_specific_to_a_type_0_function_dictionary ISO_32000::Table_38-Entries_common_to_all_function_dictionaries
PDF::Function::Stitching	stream	Bounds, Domain, Encode, FunctionType, Functions, Range	calc, calculator	/FunctionType 3 - Stitching see [PDF 32000 Section 7.4.10 Type 3 (Stitching) Functions]	ISO_32000::Table_41-Additional_entries_specific_to_a_type_3_function_dictionary ISO_32000::Table_38-Entries_common_to_all_function_dictionaries
PDF::Group::Transparency	dict	CS(color-space), I(isolated), K(knockout), S, Type(type)			ISO_32000::Table_147-Additional_entries_specific_to_a_transparency_group_attributes_dictionary ISO_32000::Table_96-Entries_Common_to_all_Group_Attributes_Dictionaries
PDF::ICCProfile	dict	Alternate, Metadata, N(num-colors), Range			ISO_32000::Table_66-Additional_Entries_Specific_to_an_ICC_Profile_Stream_Dictionary
PDF::Image	stream	Alternates, BitsPerComponent, ColorSpace, Decode, Height, ID, ImageMask, Intent, Interpolate, Mask, Metadata, Name, OC(optional-content), OPI, SMask, SMaskInData, StructParent(struct-parent), Subtype, Type, Width	to-png		ISO_32000::Table_89-Additional_Entries_Specific_to_an_Image_Dictionary
PDF::Info	dict	Author, CreationDate, Creator, Keywords, ModDate, Producer, Subject, Title, Trapped			ISO_32000::Table_317-Entries_in_the_document_information_dictionary
PDF::MCR	dict	MCID, Pg(page), Stm, StmOwn, Type(type)			ISO_32000::Table_324-Entries_in_a_marked-content_reference_dictionary
PDF::MarkInfo	dict	Marked, Suspects, UserProperties			ISO_32000::Table_321-Entries_in_the_mark_information_dictionary
PDF::Mask::Alpha	dict	BC(backdrop-color), G(transparency-xobject), S(subtype), TR(transfer-function), Type			ISO_32000::Table_144-Entries_in_a_soft-mask_dictionary
PDF::Mask::Luminosity	dict	BC(backdrop-color), G(transparency-xobject), S(subtype), TR(transfer-function), Type			ISO_32000::Table_144-Entries_in_a_soft-mask_dictionary
PDF::Metadata::XML	stream	Metadata, Subtype(subtype), Type(type)			ISO_32000::Table_315-Additional_entries_in_a_metadata_stream_dictionary
PDF::NameTree	dict	Kids, Limits, Names	coercer, name-tree
PDF::Names	dict	AP, AlternatePresentations, Dests, EmbeddedFiles, IDS, JavaScript, Pages, Renditions, Templates, URLS			ISO_32000::Table_31-Entries_in_the_name_dictionary
PDF::NumberTree	dict	Kids, Limits, Nums	coercer, number-tree
PDF::OBJR	dict	Obj(object), Pg(page), Type(type)		/Type /OBJR - Object Reference dictionary	ISO_32000::Table_325-Entries_in_an_object_reference_dictionary
PDF::OCG	dict	Intent, Name, Type(type), Usage		/Type /OCG - Optional Content Group	ISO_32000::Table_98-Entries_in_an_Optional_Content_Group_Dictionary
PDF::OCMD	dict	OCGs, P(visibility-policy), Type(type), VE(visibility-expression)			ISO_32000::Table_99-Entries_in_an_Optional_Content_Membership_Dictionary
PDF::Outline	dict	A(action), C(color), Count, Dest(destination), F(flags), First, Last, Next, Parent, Prev, SE(structure-element), Title		Outline - an entry in the Outlines Dictionary See /First and /Last Accessors in PDF::Outlines	ISO_32000::Table_153-Entries_in_an_outline_item_dictionary
PDF::Outlines	dict	Count, First, Last, Type		/Type /Outlines - the Outlines dictionary	ISO_32000::Table_152-Entries_in_the_outline_dictionary
PDF::OutputIntent	dict	DestOutputProfile, Info, OutputCondition, OutputConditionIdentifier, RegistryName, S(subtype), Type(type)		/Type /OutputIntent	ISO_32000::Table_365-Entries_in_an_output_intent_dictionary
PDF::Page::AdditionalActions	dict	C(page-close), O(page-open)
PDF::Pages	dict	Count, CropBox, Kids, MediaBox, Parent, Resources, Rotate(rotate), Type(type)	add-page, add-pages, art-box, bbox, bleed, bleed-box, core-font, crop-box, delete-page, find-resource, height, images, iterate-pages, media-box, page, page-count, page-fragment, page-index, pages, pages-fragment, resource-entry, resource-key, resources, to-landscape, trim-box, use-font, use-resource, width	/Type /Pages - a node in the page tree	ISO_32000::Table_29-Required_entries_in_a_page_tree_node
PDF::Pattern::Shading	dict	ExtGState, Matrix, PatternType, Shading, Type		/ShadingType 2 - Axial	ISO_32000::Table_76-Entries_in_a_Type_2_Pattern_Dictionary
PDF::Pattern::Tiling	stream	BBox, Matrix, PaintType, PatternType, Resources, TilingType, Type, XStep, YStep	bbox, canvas, contents, contents-parse, core-font, find-resource, finish, gfx, graphics, has-pre-gfx, height, html-canvas, images, mcid, new-gfx, next-mcid, open, pre-gfx, pre-graphics, render, resource-entry, resource-key, resources, save-as-image, tags, text, tiling-pattern, use-font, use-mcid, use-resource, width, xobject-form	/PatternType 1 - Tiling	ISO_32000::Table_75-Additional_Entries_Specific_to_a_Type_1_Pattern_Dictionary
PDF::Resources	dict	ColorSpace, ExtGState, Font, Pattern, ProcSet, Properties, Shading, XObject		Resource Dictionary	ISO_32000::Table_33-Entries_in_a_resource_dictionary
PDF::Shading::Axial	dict	AntiAlias, BBox, Background, ColorSpace, Coords, Domain, Extend, Function, ShadingType		/ShadingType 2 - Axial	ISO_32000::Table_80-Additional_Entries_Specific_to_a_Type_2_Shading_Dictionary ISO_32000::Table_78-Entries_Common_to_All_Shading_Dictionaries
PDF::Shading::Coons	stream	AntiAlias, BBox, Background, BitsPerComponent, BitsPerCoordinate, BitsPerFlag, ColorSpace, Decode, Function, ShadingType		/ShadingType 6 - Coons	ISO_32000::Table_84-Additional_Entries_Specific_to_a_Type_6_Shading_Dictionary ISO_32000::Table_78-Entries_Common_to_All_Shading_Dictionaries
PDF::Shading::FreeForm	stream	AntiAlias, BBox, Background, BitsPerComponent, BitsPerCoordinate, BitsPerFlag, ColorSpace, Decode, Function, ShadingType		/ShadingType 4 - FreeForm	ISO_32000::Table_82-Additional_Entries_Specific_to_a_Type_4_Shading_Dictionary ISO_32000::Table_78-Entries_Common_to_All_Shading_Dictionaries
PDF::Shading::Function	dict	AntiAlias, BBox, Background, ColorSpace, Domain, Function, Matrix, ShadingType		/ShadingType 1 - Functional	ISO_32000::Table_79-Additional_Entries_Specific_to_a_Type_1_Shading_Dictionary ISO_32000::Table_78-Entries_Common_to_All_Shading_Dictionaries
PDF::Shading::Lattice	stream	AntiAlias, BBox, Background, BitsPerComponent, BitsPerCoordinate, ColorSpace, Decode, Function, ShadingType, VerticesPerRow		/ShadingType 5 - Lattice	ISO_32000::Table_83-Additional_Entries_Specific_to_a_Type_5_Shading_Dictionary ISO_32000::Table_78-Entries_Common_to_All_Shading_Dictionaries
PDF::Shading::Radial	dict	AntiAlias, BBox, Background, ColorSpace, Coords, Domain, Extend, Function, ShadingType		/ShadingType 3 - Radial	ISO_32000::Table_81-Additional_Entries_Specific_to_a_Type_3_Shading_Dictionary ISO_32000::Table_78-Entries_Common_to_All_Shading_Dictionaries
PDF::Shading::Tensor	stream	AntiAlias, BBox, Background, BitsPerComponent, BitsPerCoordinate, BitsPerFlag, ColorSpace, Decode, Function, ShadingType		/ShadingType 7 - Tensor	ISO_32000::Table_84-Additional_Entries_Specific_to_a_Type_6_Shading_Dictionary ISO_32000::Table_78-Entries_Common_to_All_Shading_Dictionaries
PDF::Signature	dict	ByteRange, Cert, Changes, ContactInfo, Contents, Location, M(date-signed), Name, Prop_AuthTime, Prop_AuthType, Prop_Build, R, Reason, Reference, SubFilter, Type, V	byte-ranges		ISO_32000::Table_252-Entries_in_a_signature_dictionary
PDF::Sound	dict	B(bits), C(channels), CO(compression-format), CP(compression-params), E(encoding), R(rate), Type
PDF::StructElem	dict	A, ActualText, Alt(alternative-description), C(class), E(expanded-form), ID, K(kids), Lang, P(struct-parent), Pg(page), R(revision), S(tag), T(title), Type	attribute-dicts, class-map-keys, vivify-attributes	an entry in the StructTree See also PDF::StructTreeRoot	ISO_32000::Table_323-Entries_in_a_structure_element_dictionary
PDF::StructTreeRoot	dict	ClassMap, IDTree, K(kids), ParentTree, ParentTreeNextKey, RoleMap, Type(type)			ISO_32000::Table_322-Entries_in_the_structure_tree_root
PDF::ViewerPreferences	dict	CenterWindow, Direction, DisplayDocTitle, Duplex, FitWindow, HideMenubar, HideToolbar, HideWindowUI, NonFullScreenPageMode(after-fullscreen), NumCopies, PickTrayByPDFSize, PrintArea, PrintClip, PrintPageRange, PrintScaling, ViewArea, ViewClip		ViewerPreferences role - see PDF::Catalog - /ViewerPreferences entry	ISO_32000::Table_150-Entries_in_a_viewer_preferences_dictionary
PDF::XObject::Form	stream	BBox, FormType, Group, LastModified, Matrix, Metadata, Name, OC(optional-content-group), OPI, PieceInfo, Ref, Resources, StructParent, StructParents, Subtype(subtype), Type(type)	bbox, canvas, contents, contents-parse, core-font, find-resource, finish, gfx, graphics, has-pre-gfx, height, html-canvas, images, mcid, new-gfx, next-mcid, open, pre-gfx, pre-graphics, render, resource-entry, resource-key, resources, save-as-image, struct-parent, tags, text, tiling-pattern, use-font, use-mcid, use-resource, width, xobject-form	XObject Forms - /Type /XObject /Subtype Form	ISO_32000::Table_95-Additional_Entries_Specific_to_a_Type_1_Form_Dictionary
PDF::XObject::Image	stream	Alternates, BitsPerComponent, ColorSpace, Decode, Height, ID, ImageMask, Intent, Interpolate, Mask, Metadata, Name, OC(optional-content), OPI, SMask, SMaskInData, StructParent(struct-parent), Subtype, Type, Width	bbox, data-uri, height, image-obj, image-type, inline-content, inline-to-xobject, open, source, to-png, width	/Type XObject /Subtype /Image See [PDF 32000 Section 8.9 - Images ]	ISO_32000::Table_89-Additional_Entries_Specific_to_an_Image_Dictionary
PDF::XObject::PS	stream	Level1, Subtype(subtype), Type(type)		Postscript XObjects /Type XObject /Subtype PS See [PDF 32000 Section 8.8.2 PostScript XObjects]	ISO_32000::Table_88-Additional_Entries_Specific_to_a_PostScript_XObject_Dictionary

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