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 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.

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.

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:

Notes

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
General Options:

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

Classes Quick Reference

Class Types Accessors Methods Description ISO-32000 References    
PDF::Class dict Encrypt, ID, Info, Prev, Root(catalog), Size Blob, Pages, ast, crypt, encrypt, open, permitted, save-as, update, version PDF entry-point. either a trailer dict or an XRef stream Table_15-Entries_in_the_file_trailer_dictionary    
PDF::Catalog dict AA(additional-actions), AcroForm, Collection, Dests(destinations), Extensions, Lang, Legal, MarkInfo, Metadata, Names, NeedsRendering, OCProperties, OpenAction, Outlines, OutputIntents, PageLabels, PageLayout, PageMode, Pages, Perms, PieceInfo, Requirements, Resources, SpiderInfo, StructTreeRoot, Threads, Type, URI, Version, ViewerPreferences core-font, find-resource, images, resource-entry, resource-key, use-font, use-resource /Type /Catalog - usually the document root in a PDF See [PDF 32000 Section 7.7.2 Document Catalog] Table_28-Entries_in_the_catalog_dictionary    
PDF::Catalog::AdditionalActions dict DP(did-print), DS(did-save), WC(will-close), WP(will-print), WS(will-save)     Table_197-Entries_in_the_document_catalogs_additional-actions_dictionary    
PDF::AcroForm dict CO(calculation-order), DA(default-appearance), DR(default-resources), Fields, NeedAppearances, Q(quadding), SigFlags, XFA fields, fields-hash   Table_218-Entries_in_the_interactive_form_dictionary    
PDF::Action::GoTo dict D(destination), Next, S, Type   /Action Subtype - GoTo Table_199-Additional_entries_specific_to_a_go-to_action Table_193-Entries_common_to_all_action_dictionaries    
PDF::Action::GoToR dict D(destination), F(file), NewWindow, Next, S, Type   /Action Subtype - GoToR Table_200-Additional_entries_specific_to_a_remote_go-to_action Table_193-Entries_common_to_all_action_dictionaries    
PDF::Action::JavaScript dict JS, Next, S, Type   /Action Subtype - GoTo Table_217-Additional_entries_specific_to_a_JavaScript_action Table_193-Entries_common_to_all_action_dictionaries    
PDF::Action::Launch dict F(file), Mac, NewWindow, Next, S, Type, Unix, Win   /Action Subtype - Launch Table_203-Additional_entries_specific_to_a_launch_action Table_193-Entries_common_to_all_action_dictionaries    
PDF::Action::Named dict N(action-name), Next, S, Type   /Action Subtype - GoTo Table_212-Additional_entries_specific_to_named_actions Table_193-Entries_common_to_all_action_dictionaries    
PDF::Action::Thread dict B(bead), D(thread), F(file-spec), Next, S, Type   /Action Subtype - Thread Table_205-Additional_entries_specific_to_a_thread_action Table_193-Entries_common_to_all_action_dictionaries    
PDF::Action::SubmitForm dict Fields, Flags, Next, S(subtype), Type(type) Fields, Flags, Next, S, Type /Action Subtype - URI Table_236-Additional_entries_specific_to_a_submit-form_action    
PDF::Action::URI dict IsMap, Next, S, Type, URI   /Action Subtype - URI Table_206-Additional_entries_specific_to_a_URI_action 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)     Table_194-Entries_in_an_annotations_additional-actions_dictionary    
PDF::Annot::Caret dict AP(appearance), AS(appearance-state), Border, C(color), CA(constant-opacity), Contents, CreationDate, DR(default-resources), ExData(external-data), F(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, StructParent, Subj, Subtype, Sy(symbol), T(text-label), Type     Table_180-Additional_entries_specific_to_a_caret_annotation Table_170-Additional_entries_specific_to_markup_annotations 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, CreationDate, DR(default-resources), ExData(external-data), F(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, StructParent, Subj, Subtype, T(text-label), Type     Table_177-Additional_entries_specific_to_a_square_or_circle_annotation Table_170-Additional_entries_specific_to_markup_annotations Table_164-Entries_common_to_all_annotation_dictionaries    
PDF::Annot::FileAttachment dict AP(appearance), AS(appearance-state), Border, C(color), CA(constant-opacity), Contents, CreationDate, DR(default-resources), ExData(external-data), F(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, StructParent, Subj, Subtype, T(text-label), Type     Table_184-Additional_entries_specific_to_a_file_attachment_annotation Table_170-Additional_entries_specific_to_markup_annotations Table_164-Entries_common_to_all_annotation_dictionaries    
PDF::Annot::Link dict A(action), AP(appearance), AS(appearance-state), BS, Border, C(color), CA(constant-opacity), Contents, CreationDate, DR(default-resources), Dest, ExData(external-data), F(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, StructParent, Subj, Subtype, T(text-label), Type     Table_173-Additional_entries_specific_to_a_link_annotation Table_170-Additional_entries_specific_to_markup_annotations Table_164-Entries_common_to_all_annotation_dictionaries    
PDF::Annot::Popup dict AP(appearance), AS(appearance-state), Border, C(color), Contents, DR(default-resources), F(flags), FT(field-type), M(mod-time), NM(annotation-name), OC(optional-content), Open, P(page), Parent, Rect, StructParent, Subtype, Type     Table_183-Additional_entries_specific_to_a_pop-up_annotation 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, CreationDate, DR(default-resources), ExData(external-data), F(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, StructParent, Subj, Subtype, T(text-label), Type     Table_177-Additional_entries_specific_to_a_square_or_circle_annotation Table_170-Additional_entries_specific_to_markup_annotations Table_164-Entries_common_to_all_annotation_dictionaries    
PDF::Annot::Text dict AP(appearance), AS(appearance-state), Border, C(color), CA(constant-opacity), Contents, CreationDate, DR(default-resources), ExData(external-data), F(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, State, StateModel, StructParent, Subj, Subtype, T(text-label), Type   /Type Annot - Annonation subtypes See [PDF 32000 Section 12.5 Annotations] Table_172-Additional_entries_specific_to_a_text_annotation Table_170-Additional_entries_specific_to_markup_annotations 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, DR(default-resources), F(flags), FT(field-type), M(mod-time), NM(annotation-name), OC(optional-content), P(page), Rect, StructParent, Subtype, Type     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, DR(default-resources), F(flags), FT(field-type), H(highlight-mode), M(mod-time), MK, NM(annotation-name), OC(optional-content), P(page), Parent, Rect, StructParent, Subtype, Type     Table_188-Additional_entries_specific_to_a_widget_annotation Table_164-Entries_common_to_all_annotation_dictionaries    
PDF::Appearance dict D(down), N(normal), R(rollover)     Table_168-Entries_in_an_appearance_dictionary    
PDF::Border dict D(dash-pattern), S(style), Type, W(width)     Table_166-Entries_in_a_border_style_dictionary    
PDF::CIDSystemInfo dict Ordering, Registry, Supplement     Table_116-Entries_in_a_CIDSystemInfo_dictionary    
PDF::CMap stream CIDSystemInfo, CMapName, Type, UseCMap, WMode   /Type /CMap Table_120-Additional_entries_in_a_CMap_stream_dictionary    
PDF::ColorSpace::CalGray array Subtype, dict props        
PDF::ColorSpace::CalRGB array Subtype, dict props        
PDF::ColorSpace::DeviceN array AlternateSpace, Attributes, Names, Subtype, TintTransform          
PDF::ColorSpace::ICCBased array Subtype, dict props        
PDF::ColorSpace::Indexed array Base, Hival, Lookup, Subtype          
PDF::ColorSpace::Lab array Subtype, dict 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   Table_151-Destination_syntax    
PDF::Encoding dict BaseEncoding, Differences, Type     Table_114-Entries_in_an_encoding_dictionary    
PDF::ExData::Markup3D dict 3DA(activation), 3DV(default-view), MD5, Subtype, Type     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   Table_58-Entries_in_a_Graphics_State_Parameter_Dictionary    
PDF::Field::AdditionalActions dict C(calculate), F(format), K(change), V(validate) dict C(calculate), F(format), K(change), V(validate)     Table_196-Entries_in_a_form_fields_additional-actions_dictionary
PDF::Field::Button dict DV(default-value), Opt, V(value)     Table_220-Entries_common_to_all_field_dictionaries Table_222-Additional_entries_common_to_all_fields_containing_variable_text Table_227-Additional_entry_specific_to_check_box_and_radio_button_fields    
PDF::Field::Choice dict DV(default-value), I(indices), Opt, TI(top-index), V(value)     Table_220-Entries_common_to_all_field_dictionaries Table_222-Additional_entries_common_to_all_fields_containing_variable_text Table_231-Additional_entries_specific_to_a_choice_field    
PDF::Field::Signature dict Lock, SV(seed-value), V(value) DV   Table_220-Entries_common_to_all_field_dictionaries Table_222-Additional_entries_common_to_all_fields_containing_variable_text Table_252-Entries_in_a_signature_dictionary    
PDF::Field::Text dict DV(default-value), MaxLen, V(value)     Table_220-Entries_common_to_all_field_dictionaries Table_222-Additional_entries_common_to_all_fields_containing_variable_text 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)     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, Type, W(widths), W2(heights) font-obj, make-font, set-font-obj   Table_117-Entries_in_a_CIDFont_dictionary    
PDF::Font::CIDFontType0 dict BaseFont, CIDSystemInfo, CIDToGIDMap, DW(default-width), DW2(default-width-and-height), FontDescriptor, Subtype, Type, W(widths), W2(heights) font-obj, make-font, set-font-obj   Table_117-Entries_in_a_CIDFont_dictionary    
PDF::Font::CIDFontType2 dict BaseFont, CIDSystemInfo, CIDToGIDMap, DW(default-width), DW2(defa\ult-width-and-height), FontDescriptor, Subtype, Type, W(widths), W2(heights) font-obj, make-font, set-font-obj   Table_117-Entries_in_a_CIDFont_dictionary    
PDF::Font::MMType1 dict BaseFont, Encoding, FirstChar, FontDescriptor, LastChar, Name, Subtype, ToUnicode, Type, Widths font-obj, make-font, set-font-obj   Table_111-Entries_in_a_Type_1_font_dictionary    
PDF::Font::TrueType dict BaseFont, Encoding, FirstChar, FontDescriptor, LastChar, Name, Subtype, ToUnicode, Type, Widths font-obj, make-font, set-font-obj   Table_111-Entries_in_a_Type_1_font_dictionary    
PDF::FontDescriptor dict Type, FontName, FontFamily, FontStretch, FontWeight, Flags, FontBBox, ItalicAngle, Ascent, Descent, Leading, CapHeight, XHeight, StemV, StemH, AvgWidth, MaxWidth, MissingWidth, FontFile, FontFile2, FontFile3, CharSet     Table_122-Entries_common_to_all_font_descriptors    
PDF::FontDescriptor::CID dict Type, FontName, FontFamily, FontStretch, FontWeight, Flags, FontBBox, ItalicAngle, Ascent, Descent, Leading, CapHeight, XHeight, StemV, StemH, AvgWidth, MaxWidth, MissingWidth, FontFile, FontFile2, FontFile3, CharSet, CIDSet, FD, Lang, Style     Table_122-Entries_common_to_all_font_descriptors Table_117-Entries_in_a_CIDFont_dictionary    
PDF::FontFile stream Length1, Length2, Length3, Metadata, Subtype     Table_127-Additional_entries_in_an_embedded_font_stream_dictionary    
PDF::FontStream dict Length1, Length2, Length3, Metadata          
PDF::Function::Exponential stream C0, C1, Domain, FunctionType, N, Range calc, calculator /FunctionType 2 - Exponential Table_38-Entries_common_to_all_function_dictionaries Table_40-Additional_entries_specific_to_a_type_2_function_dictionary    
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] Table_38-Entries_common_to_all_function_dictionaries Section 7.10.5 Type 4 (PostScript Transform) Functions    
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] Table_38-Entries_common_to_all_function_dictionaries Table_39-Additional_entries_specific_to_a_type_0_function_dictionary    
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] Table_38-Entries_common_to_all_function_dictionaries Table_41-Additional_entries_specific_to_a_type_3_function_dictionary    
PDF::Group::Transparency dict CS(color-space), I(isolated), K(knockout), S, Type     Table_96-Entries_Common_to_all_Group_Attributes_Dictionaries Table_147-Additional_entries_specific_to_a_transparency_group_attributes_dictionary    
PDF::ICCProfile dict Alternate, Metadata, N(num-colors), Range     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, Subtype, Type, Width to-png   Table_89-Additional_Entries_Specific_to_an_Image_Dictionary    
PDF::Info dict Title, Author, CreationDate, Creator, Keywords, ModDate, Producer, Subject, Trapped     Table_317-Entries_in_the_document_information_dictionary    
PDF::MCR dict MCID, Pg(page), Stm, StmOwn, Type     Table_324-Entries_in_a_marked-content_reference_dictionary    
PDF::MarkInfo dict Marked UserProperties Suspects     Table_321-Entries_in_the_mark_information_dictionary    
PDF::Mask::Alpha dict BC(backdrop-color), G(transparency-xobject), S(subtype), TR(transfer-function), Type     Table_144-Entries_in_a_soft-mask_dictionary    
PDF::Mask::Luminosity dict BC(backdrop-color), G(transparency-xobject), S(subtype), TR(transfer-function), Type     Table_144-Entries_in_a_soft-mask_dictionary    
PDF::Metadata::XML stream Metadata, Subtype, Type     Table_315-Additional_entries_in_a_metadata_stream_dictionary    
PDF::NameTree dict Kids, Limits, Names     Table_36-Entries_in_a_name_tree_node_dictionary    
PDF::NumberTree dict Kids, Limits, Nums     Table_37-Entries_in_a_number_tree_node_dictionary    
PDF::OBJR dict Obj, Pg(page), Type   /Type /OBJR - Object Reference dictionary Table_325-Entries_in_an_object_reference_dictionary    
PDF::OCG dict Intent, Name, Type, Usage     Table_98-Entries_in_an_Optional_Content_Group_Dictionary    
PDF::OCMD dict OCGs, P(visibility-policy), Type, VE(visibility-expression)     Table_99-Entries_in_an_Optional_Content_Membership_Dictionary    
PDF::Outline dict A(action), C(color), Count, Dest, F(flags), First, Last, Next, Parent, Prev, SE(structure-element), Title     Table_153-Entries_in_an_outline_item_dictionary    
PDF::Outlines dict Count, First, Last, Type     Table_152-Entries_in_the_outline_dictionary    
PDF::OutputIntent::GTS_PDFX dict DestOutputProfile, Info, OutputCondition, OutputConditionIdentifier, RegistryName, S, Type     Table_365-Entries_in_an_output_intent_dictionary    
PDF::Page dict AA(additional-actions), Annots, ArtBox, B(beads), BleedBox, BoxColorInfo, Contents, CropBox, Dur(display-duration), Group, ID, LastModified, MediaBox, Metadata, PZ(preferred-zoom), Parent, PieceInfo, PresSteps, Resources, Rotate, SeparationInfo, StructParents(struct-parent), Tabs, TemplateInstantiated, Thumb(thumbnail-image), Trans(transition-effect), TrimBox, Type, UserUnit, VP(view-ports) art-box, bbox, bleed-box, canvas, contents, contents-parse, core-font, crop-box, fields, fields-hash, find-resource, finish, gfx, graphics, has-pre-gfx, height, images, media-box, new-gfx, pre-gfx, pre-graphics, render, resource-entry, resource-key, save-as-image, text, tiling-pattern, to-landscape, to-xobject, trim-box, use-font, use-resource, width, xobject-form /Type /Page - describes a single PDF page Table_30-Entries_in_a_page_object    
PDF::Page::AdditionalActions dict C(page-close), O(page-open)     Table_195-Entries_in_a_page_objects_additional-actions_dictionary    
PDF::Pages dict Count, CropBox, Kids, MediaBox, Parent, Resources, Rotate, Type add-page, add-pages, art-box, bbox, bleed-box, core-font, crop-box, find-resource, height, images, media-box, page-count, page-index, resource-entry, resource-key, to-landscape, trim-box, use-font, use-resource, width /Type /Pages - a node in the page tree Table_29-Required_entries_in_a_page_tree_node    
PDF::Pattern::Shading dict ExtGState, Matrix, PatternType, Shading, Type   /ShadingType 2 - Axial Table_76-Entries_in_a_Type_2_Pattern_Dictionary    
PDF::Pattern::Tiling stream BBox, Matrix, PaintType, PatternType, Resources, TilingType, Type, XStep, YStep canvas, contents, contents-parse, core-font, find-resource, finish, gfx, graphics, has-pre-gfx, height, images, new-gfx, pre-gfx, pre-graphics, render, resource-entry, resource-key, save-as-image, text, tiling-pattern, use-font, use-resource, width, xobject-form /PatternType 1 - Tiling Table_75-Additional_Entries_Specific_to_a_Type_1_Pattern_Dictionary    
PDF::Resources dict ColorSpace, ExtGState, Font, Pattern, ProcSet, Properties, Shading, XObject     Table_33-Entries_in_a_resource_dictionary    
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     Table_252-Entries_in_a_signature_dictionary    
PDF::Shading::Axial dict AntiAlias, BBox, Background, ColorSpace, Coords, Domain, Extend, Function, ShadingType   /ShadingType 2 - Axial Table_78-Entries_Common_to_All_Shading_Dictionaries Table_80-Additional_Entries_Specific_to_a_Type_2_Shading_Dictionary    
PDF::Shading::Coons stream AntiAlias, BBox, Background, BitsPerComponent, BitsPerCoordinate, BitsPerFlag, ColorSpace, Decode, Function, ShadingType   /ShadingType 6 - Coons Table_78-Entries_Common_to_All_Shading_Dictionaries Table_84-Additional_Entries_Specific_to_a_Type_6_Shading_Dictionary    
PDF::Shading::FreeForm stream AntiAlias, BBox, Background, BitsPerComponent, BitsPerCoordinate, BitsPerFlag, ColorSpace, Decode, Function, ShadingType   /ShadingType 4 - FreeForm Table_78-Entries_Common_to_All_Shading_Dictionaries Table_82-Additional_Entries_Specific_to_a_Type_4_Shading_Dictionary    
PDF::Shading::Function dict AntiAlias, BBox, Background, ColorSpace, Domain, Function, Matrix, ShadingType   /ShadingType 1 - Functional Table_78-Entries_Common_to_All_Shading_Dictionaries Table_79-Additional_Entries_Specific_to_a_Type_1_Shading_Dictionary    
PDF::Shading::Lattice stream AntiAlias, BBox, Background, BitsPerComponent, BitsPerCoordinate, ColorSpace, Decode, Function, ShadingType, VerticesPerRow   /ShadingType 5 - Lattice Table_78-Entries_Common_to_All_Shading_Dictionaries Table_83-Additional_Entries_Specific_to_a_Type_5_Shading_Dictionary    
PDF::Shading::Radial dict AntiAlias, BBox, Background, ColorSpace, Coords, Domain, Extend, Function, ShadingType   /ShadingType 3 - Radial Table_78-Entries_Common_to_All_Shading_Dictionaries Table_81-Additional_Entries_Specific_to_a_Type_3_Shading_Dictionary    
PDF::Shading::Tensor stream AntiAlias, BBox, Background, BitsPerComponent, BitsPerCoordinate, BitsPerFlag, ColorSpace, Decode, Function, ShadingType   /ShadingType 7 - Tensor Table_78-Entries_Common_to_All_Shading_Dictionaries [PDF 32000 Section 8.7.4.5.8 - Type 7 Shadings (Tensor-Product Patch Meshes)]    
PDF::Signature dict ByteRange, Cert, Changes, ContactInfo, Contents, Location, M(date-signed), Name, Prop_AuthTime, Prop_AuthType, Prop_Build, Reason, Reference, SubFilter, Type, V     Table_252-Entries_in_a_signature_dictionary    
PDF::StructElem dict A(attributes), ActualText, Alt(alternative-description), C, E(expanded-form), ID, K(kids), Lang, P(parent), Pg(page), R(revision), S(tag), T(title), Type     Table_323-Entries_in_a_structure_element_dictionary    
PDF::StructTreeRoot dict ClassMap, IDTree, K(kids), ParentTree, ParentTreeNextKey, RoleMap, Type     Table_322-Entries_in_the_structure_tree_root    
PDF::ViewerPreferences dict CenterWindow, Direction, DisplayDocTitle, Duplex, FitWindow, HideMenubar, HideToolbar, HideWindowUI, NonFullScreenPageMode, NumCopies, PickTrayByPDFSize, PrintArea, PrintPageRange, PrintScaling, ViewArea, ViewClip     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, Type canvas, contents, contents-parse, core-font, find-resource, finish, gfx, graphics, has-pre-gfx, height, images, new-gfx, pre-gfx, pre-graphics, render, resource-entry, resource-key, save-as-image, text, tiling-pattern, use-font, use-resource, width, xobject-form XObject Forms - /Type /XObject /Subtype Form See [PDF Spec 1.7 4.9 Form XObjects] 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, Subtype, Type, Width height, image-obj, inline-content, inline-to-xobject, to-png, width XObjects /Type XObject /Subtype /Image See [PDF 32000 Section 8.9 - Images ] Table_89-Additional_Entries_Specific_to_an_Image_Dictionary    
PDF::XObject::PS stream Level1, Subtype, Type   Postscript XObjects /Type XObject /Subtype PS See [PDF 32000 Section 8.8.2 PostScript XObjects] Table_88-Additional_Entries_Specific_to_a_PostScript_XObject_Dictionary    

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