[CORDA-1612]: Fix truncated code snippets in docs PDF (#3347)

docs/Makefile

@@ -16,6 +16,8 @@ endif
 PAPEROPT_a4     = -D latex_paper_size=a4
 PAPEROPT_letter = -D latex_paper_size=letter
 ALLSPHINXOPTS   = -d $(BUILDDIR)/doctrees $(PAPEROPT_$(PAPER)) $(SPHINXOPTS) source
+HTMLSPHINXOPTS   = $(ALLSPHINXOPTS) -t htmlmode
+PDFSPHINXOPTS   = $(ALLSPHINXOPTS) -t pdfmode
 # the i18n builder cannot share the environment and doctrees with the others
 I18NSPHINXOPTS  = $(PAPEROPT_$(PAPER)) $(SPHINXOPTS) source
 
@@ -52,17 +54,17 @@ clean:
 	rm -rf $(BUILDDIR)/*
 
 html:
-	$(SPHINXBUILD) -b html $(ALLSPHINXOPTS) $(BUILDDIR)/html
+	$(SPHINXBUILD) -b html $(HTMLSPHINXOPTS) $(BUILDDIR)/html
 	@echo
 	@echo "Build finished. The HTML pages are in $(BUILDDIR)/html."
 
 dirhtml:
-	$(SPHINXBUILD) -b dirhtml $(ALLSPHINXOPTS) $(BUILDDIR)/dirhtml
+	$(SPHINXBUILD) -b dirhtml $(HTMLSPHINXOPTS) $(BUILDDIR)/dirhtml
 	@echo
 	@echo "Build finished. The HTML pages are in $(BUILDDIR)/dirhtml."
 
 singlehtml:
-	$(SPHINXBUILD) -b singlehtml $(ALLSPHINXOPTS) $(BUILDDIR)/singlehtml
+	$(SPHINXBUILD) -b singlehtml $(HTMLSPHINXOPTS) $(BUILDDIR)/singlehtml
 	@echo
 	@echo "Build finished. The HTML page is in $(BUILDDIR)/singlehtml."
 
@@ -77,7 +79,7 @@ json:
 	@echo "Build finished; now you can process the JSON files."
 
 htmlhelp:
-	$(SPHINXBUILD) -b htmlhelp $(ALLSPHINXOPTS) $(BUILDDIR)/htmlhelp
+	$(SPHINXBUILD) -b htmlhelp $(HTMLSPHINXOPTS) $(BUILDDIR)/htmlhelp
 	@echo
 	@echo "Build finished; now you can run HTML Help Workshop with the" \
 	      ".hhp project file in $(BUILDDIR)/htmlhelp."
@@ -114,20 +116,20 @@ epub:
 	@echo "Build finished. The epub file is in $(BUILDDIR)/epub."
 
 latex:
-	$(SPHINXBUILD) -b latex $(ALLSPHINXOPTS) $(BUILDDIR)/latex
+	$(SPHINXBUILD) -b latex $(PDFSPHINXOPTS) $(BUILDDIR)/latex
 	@echo
 	@echo "Build finished; the LaTeX files are in $(BUILDDIR)/latex."
 	@echo "Run \`make' in that directory to run these through (pdf)latex" \
 	      "(use \`make latexpdf' here to do that automatically)."
 
 latexpdf:
-	$(SPHINXBUILD) -b latex $(ALLSPHINXOPTS) $(BUILDDIR)/latex
+	$(SPHINXBUILD) -b latex $(PDFSPHINXOPTS) $(BUILDDIR)/latex
 	@echo "Running LaTeX files through pdflatex..."
 	$(MAKE) -C $(BUILDDIR)/latex all-pdf
 	@echo "pdflatex finished; the PDF files are in $(BUILDDIR)/latex."
 
 latexpdfja:
-	$(SPHINXBUILD) -b latex $(ALLSPHINXOPTS) $(BUILDDIR)/latex
+	$(SPHINXBUILD) -b latex $(PDFSPHINXOPTS) $(BUILDDIR)/latex
 	@echo "Running LaTeX files through platex and dvipdfmx..."
 	$(MAKE) -C $(BUILDDIR)/latex all-pdf-ja
 	@echo "pdflatex finished; the PDF files are in $(BUILDDIR)/latex."
@@ -192,4 +194,4 @@ pseudoxml:
 	@echo "Build finished. The pseudo-XML files are in $(BUILDDIR)/pseudoxml."
 
 pdf:
-	$(SPHINXBUILD) -b pdf $(ALLSPHINXOPTS) $(BUILDDIR)/pdf
+	$(SPHINXBUILD) -b pdf $(PDFSPHINXOPTS) $(BUILDDIR)/pdf

docs/make-docsite.sh

@@ -13,11 +13,10 @@ fi
 
 # TODO: The PDF rendering is pretty ugly and can be improved a lot.
 echo "Generating PDF document ..."
-make pdf
+make latexpdf
 
 echo "Generating HTML pages ..."
 make html
 
-echo "Moving PDF file into place ..."
+echo "Moving PDF file from $(eval echo $PWD/build/pdf/corda-developer-site.pdf) to $(eval echo $PWD/build/html/_static/corda-developer-site.pdf)"
-mv $PWD/build/pdf/corda-developer-site.pdf $PWD/build/html/_static/corda-developer-site.pdf
+mv $PWD/build/latex/corda-developer-site.pdf $PWD/build/html/_static/corda-developer-site.pdf
-

docs/source/changelog.rst

@@ -7,6 +7,8 @@ release, see :doc:`upgrade-notes`.
 Unreleased
 ==========
 
+* Improved documentation PDF quality. Building the documentation now requires ``LaTex`` to be installed on the OS.
+
 * Add ``devModeOptions.allowCompatibilityZone`` to re-enable the use of a compatibility zone and ``devMode``
 
 * Fixed an issue where ``trackBy`` was returning ``ContractStates`` from a transaction that were not being tracked. The
@@ -153,7 +155,7 @@ Version 3.1
 * Update the fast-classpath-scanner dependent library version from 2.0.21 to 2.12.3
 
   .. note:: Whilst this is not the latest version of this library, that being 2.18.1 at time of writing, versions
-later than 2.12.3 (including 2.12.4) exhibit a different issue.
+     later than 2.12.3 (including 2.12.4) exhibit a different issue.
 
 * Updated the api scanner gradle plugin to work the same way as the version in master. These changes make the api scanner more
   accurate and fix a couple of bugs, and change the format of the api-current.txt file slightly. Backporting these changes
@@ -971,15 +973,15 @@ Special thank you to `Qian Hong <https://github.com/fracting>`_, `Marek Skocovsk
 to Corda in M10.
 
 .. warning:: Due to incompatibility between older version of IntelliJ and gradle 3.4, you will need to upgrade Intellij
-to 2017.1 (with kotlin-plugin v1.1.1) in order to run Corda demos in IntelliJ. You can download the latest IntelliJ
+   to 2017.1 (with kotlin-plugin v1.1.1) in order to run Corda demos in IntelliJ. You can download the latest IntelliJ
    from `JetBrains <https://www.jetbrains.com/idea/download/>`_.
 
 .. warning:: The Kapt-generated models are no longer included in our codebase. If you experience ``unresolved references``
-errors when building in IntelliJ, please rebuild the schema model by running ``gradlew kaptKotlin`` in Windows or
+   errors when building in IntelliJ, please rebuild the schema model by running ``gradlew kaptKotlin`` in Windows or
    ``./gradlew kaptKotlin`` in other systems. Alternatively, perform a full gradle build or install.
 
 .. note:: Kapt is used to generate schema model and entity code (from annotations in the codebase) using the Kotlin Annotation
-processor.
+   processor.
 
 * Corda DemoBench:
     * DemoBench is a new tool to make it easy to configure and launch local Corda nodes. A very useful tool to demonstrate

docs/source/conf.py

@@ -14,16 +14,15 @@
 
 import sphinx_rtd_theme
 
-
 # If extensions (or modules to document with autodoc) are in another directory,
 # add these directories to sys.path here. If the directory is relative to the
 # documentation root, use os.path.abspath to make it absolute, like shown here.
-#sys.path.insert(0, os.path.abspath('.'))
+# sys.path.insert(0, os.path.abspath('.'))
 
 # -- General configuration ------------------------------------------------
 
 # If your documentation needs a minimal Sphinx version, state it here.
-#needs_sphinx = '1.0'
+# needs_sphinx = '1.0'
 
 # m2r is a Markdown to RST converter, as our design docs use Markdown.
 extensions = ['rst2pdf.pdfbuilder', 'm2r']
@@ -33,6 +32,7 @@ pdf_documents = [('index', u'corda-developer-site', u'Corda Developer Documentat
 pdf_stylesheets = ['sphinx', 'kerning', 'a4', 'murphy', 'tenpoint']
 pdf_compressed = True
 pdf_fit_mode = "shrink"
+pdf_fit_background_mode = "shrink"
 
 # Add any paths that contain templates here, relative to this directory.
 templates_path = ['_templates']
@@ -72,28 +72,30 @@ language = None
 
 # There are two options for replacing |today|: either, you set today to some
 # non-false value, then it is used:
-#today = ''
+# today = ''
 # Else, today_fmt is used as the format for a strftime call.
-#today_fmt = '%B %d, %Y'
+# today_fmt = '%B %d, %Y'
 
 # List of patterns, relative to source directory, that match files and
 # directories to ignore when looking for source files.
 exclude_patterns = []
+if tags.has('pdfmode'):
+    exclude_patterns = ['./design']
 
 # The reST default role (used for this markup: `text`) to use for all
 # documents.
-#default_role = None
+# default_role = None
 
 # If true, '()' will be appended to :func: etc. cross-reference text.
-#add_function_parentheses = True
+# add_function_parentheses = True
 
 # If true, the current module name will be prepended to all description
 # unit titles (such as .. function::).
-#add_module_names = True
+# add_module_names = True
 
 # If true, sectionauthor and moduleauthor directives will be shown in the
 # output. They are ignored by default.
-#show_authors = False
+# show_authors = False
 
 # The name of the Pygments (syntax highlighting) style to use.
 pygments_style = 'sphinx'
@@ -101,15 +103,14 @@ pygments_style = 'sphinx'
 highlight_language = 'kotlin'
 
 # A list of ignored prefixes for module index sorting.
-#modindex_common_prefix = []
+# modindex_common_prefix = []
 
 # If true, keep warnings as "system message" paragraphs in the built documents.
-#keep_warnings = False
+# keep_warnings = False
 
 # If true, `todo` and `todoList` produce output, else they produce nothing.
 todo_include_todos = False
 
-
 # -- Options for HTML output ----------------------------------------------
 
 # The theme to use for HTML and HTML Help pages.  See the documentation for
@@ -125,21 +126,21 @@ html_add_permalinks = True
 # Theme options are theme-specific and customize the look and feel of a theme
 # further.  For a list of options available for each theme, see the
 # documentation.
-#html_theme_options = {}
+# html_theme_options = {}
 
 # Add any paths that contain custom themes here, relative to this directory.
-#html_theme_path = []
+# html_theme_path = []
 
 # The name for this set of Sphinx documents.  If None, it defaults to
 # "<project> v<release> documentation".
-#html_title = None
+# html_title = None
 
 # A shorter title for the navigation bar.  Default is the same as html_title.
-#html_short_title = None
+# html_short_title = None
 
 # The name of an image file (relative to this directory) to place at the top
 # of the sidebar.
-#html_logo = None
+# html_logo = None
 
 # The name of an image file (within the static path) to use as favicon of the
 # docs.  This file should be a Windows icon file (.ico) being 16x16 or 32x32
@@ -156,103 +157,101 @@ html_style = 'css/custom.css'
 # Add any extra paths that contain custom files (such as robots.txt or
 # .htaccess) here, relative to this directory. These files are copied
 # directly to the root of the documentation.
-#html_extra_path = []
+# html_extra_path = []
 
 # If not '', a 'Last updated on:' timestamp is inserted at every page bottom,
 # using the given strftime format.
-#html_last_updated_fmt = '%b %d, %Y'
+# html_last_updated_fmt = '%b %d, %Y'
 
 # If true, SmartyPants will be used to convert quotes and dashes to
 # typographically correct entities.
-#html_use_smartypants = True
+# html_use_smartypants = True
 
 # Additional templates that should be rendered to pages, maps page names to
 # template names.
-#html_additional_pages = {}
+# html_additional_pages = {}
 
 # If false, no module index is generated.
-#html_domain_indices = True
+# html_domain_indices = True
 
 # If false, no index is generated.
-#html_use_index = True
+# html_use_index = True
 
 # If true, the index is split into individual pages for each letter.
-#html_split_index = False
+# html_split_index = False
 
 # If true, links to the reST sources are added to the pages.
-#html_show_sourcelink = True
+# html_show_sourcelink = True
 
 # If true, "Created using Sphinx" is shown in the HTML footer. Default is True.
-#html_show_sphinx = True
+# html_show_sphinx = True
 
 # If true, "(C) Copyright ..." is shown in the HTML footer. Default is True.
-#html_show_copyright = True
+# html_show_copyright = True
 
 # If true, an OpenSearch description file will be output, and all pages will
 # contain a <link> tag referring to it.  The value of this option must be the
 # base URL from which the finished HTML is served.
-#html_use_opensearch = ''
+# html_use_opensearch = ''
 
 # This is the file name suffix for HTML files (e.g. ".xhtml").
-#html_file_suffix = None
+# html_file_suffix = None
 
 # Language to be used for generating the HTML full-text search index.
 # Sphinx supports the following languages:
 #   'da', 'de', 'en', 'es', 'fi', 'fr', 'hu', 'it', 'ja'
 #   'nl', 'no', 'pt', 'ro', 'ru', 'sv', 'tr'
-#html_search_language = 'en'
+# html_search_language = 'en'
 
 # A dictionary with options for the search language support, empty by default.
 # Now only 'ja' uses this config value
-#html_search_options = {'type': 'default'}
+# html_search_options = {'type': 'default'}
 
 # The name of a javascript file (relative to the configuration directory) that
 # implements a search results scorer. If empty, the default will be used.
-#html_search_scorer = 'scorer.js'
+# html_search_scorer = 'scorer.js'
 
 # Output file base name for HTML help builder.
 htmlhelp_basename = 'R3doc'
 
 # -- Options for LaTeX output ---------------------------------------------
 
-latex_elements = {
+latex_documents = [('index', u'corda-developer-site.tex', u'Corda Developer Documentation', u'R3', 'manual', False)]
-# The paper size ('letterpaper' or 'a4paper').
-#'papersize': 'letterpaper',
-
-# The font size ('10pt', '11pt' or '12pt').
-#'pointsize': '10pt',
-
-# Additional stuff for the LaTeX preamble.
-#'preamble': '',
-
-# Latex figure (float) alignment
-#'figure_align': 'htbp',
-}
-
-# Grouping the document tree into LaTeX files. List of tuples
-# (source start file, target name, title,
-#  author, documentclass [howto, manual, or own class]).
-latex_documents = [
-  (master_doc, 'R3Prototyping.tex', u'R3 Prototyping Documentation',
-   u'R3 CEV', 'manual'),
-]
 
 # The name of an image file (relative to this directory) to place at the top of
 # the title page.
-#latex_logo = None
+# latex_logo = None
 
 # For "manual" documents, if this is true, then toplevel headings are parts,
 # not chapters.
-#latex_use_parts = False
+# latex_use_parts = False
 
 # If true, show page references after internal links.
-#latex_show_pagerefs = False
+# latex_show_pagerefs = False
 
 # If true, show URL addresses after external links.
-#latex_show_urls = False
+# latex_show_urls = False
 
 # Documents to append as an appendix to all manuals.
-#latex_appendices = []
+# latex_appendices = []
 
 # If false, no module index is generated.
-#latex_domain_indices = True
+# latex_domain_indices = True
+
+latex_elements = {
+    # The paper size ('letterpaper' or 'a4paper').
+    # 'papersize': 'letterpaper',
+
+    # The font size ('10pt', '11pt' or '12pt').
+    # 'pointsize': '10pt',
+
+    # Additional stuff for the LaTeX preamble.
+    # 'preamble': '',
+
+    # Latex figure (float) alignment
+    # 'figure_align': 'htbp',
+
+    'maxlistdepth': 2000,
+
+    'extraclassoptions': 'openany',
+}

docs/source/index.rst

@@ -53,24 +53,26 @@ We look forward to seeing what you can do with Corda!
    aws-vm.rst
    loadtesting.rst
 
-.. toctree::
+.. only:: htmlmode
-   :caption: Design docs
-   :maxdepth: 2
 
-   design/design-review-process.md
+   .. toctree::
-   design/certificate-hierarchies/design.md
+      :caption: Design docs
-   design/failure-detection-master-election/design.md
+      :maxdepth: 2
-   design/float/design.md
-   design/hadr/design.md
-   design/kafka-notary/design.md
-   design/monitoring-management/design.md
-   design/sgx-integration/design.md
 
-.. toctree::
+      design/design-review-process.md
-   :caption: Participate
+      design/certificate-hierarchies/design.md
-   :maxdepth: 2
+      design/failure-detection-master-election/design.md
+      design/float/design.md
+      design/hadr/design.md
+      design/kafka-notary/design.md
+      design/monitoring-management/design.md
+      design/sgx-integration/design.md
 
-   release-process-index.rst
+   .. toctree::
-   corda-repo-layout.rst
+      :caption: Participate
-   deterministic-modules.rst
+      :maxdepth: 2
-   building-the-docs.rst
+
+      release-process-index.rst
+      corda-repo-layout.rst
+      deterministic-modules.rst
+      building-the-docs.rst

docs/source/key-concepts-consensus.rst

@@ -7,12 +7,15 @@ Consensus
    * *Validity consensus requires contractual validity of the transaction and all its dependencies*
    * *Uniqueness consensus prevents double-spends*
 
-Video
+.. only:: htmlmode
------
+
-.. raw:: html
+   Video
+   -----
+   .. raw:: html
+   
+       <iframe src="https://player.vimeo.com/video/214138438" width="640" height="360" frameborder="0" webkitallowfullscreen mozallowfullscreen allowfullscreen></iframe>
+       <p></p>
 
-    <iframe src="https://player.vimeo.com/video/214138438" width="640" height="360" frameborder="0" webkitallowfullscreen mozallowfullscreen allowfullscreen></iframe>
-    <p></p>
 
 Two types of consensus
 ----------------------

docs/source/key-concepts-contracts.rst

@@ -7,12 +7,15 @@ Contracts
    * *Contracts are written in a JVM programming language (e.g. Java or Kotlin)*
    * *Contract execution is deterministic and its acceptance of a transaction is based on the transaction's contents alone*
 
-Video
+.. only:: htmlmode
------
+
-.. raw:: html
+   Video
+   -----
+   .. raw:: html
+
+       <iframe src="https://player.vimeo.com/video/214168839" width="640" height="360" frameborder="0" webkitallowfullscreen mozallowfullscreen allowfullscreen></iframe>
+       <p></p>
 
-    <iframe src="https://player.vimeo.com/video/214168839" width="640" height="360" frameborder="0" webkitallowfullscreen mozallowfullscreen allowfullscreen></iframe>
-    <p></p>
 
 Transaction verification
 ------------------------

docs/source/key-concepts-flows.rst

@@ -7,12 +7,15 @@ Flows
    * *Communication between nodes only occurs in the context of these flows, and is point-to-point*
    * *Built-in flows are provided to automate common tasks*
 
-Video
+.. only:: htmlmode
------
+
-.. raw:: html
+    Video
+    -----
+    .. raw:: html
+    
+        <iframe src="https://player.vimeo.com/video/214046145" width="640" height="360" frameborder="0" webkitallowfullscreen mozallowfullscreen allowfullscreen></iframe>
+        <p></p>
 
-    <iframe src="https://player.vimeo.com/video/214046145" width="640" height="360" frameborder="0" webkitallowfullscreen mozallowfullscreen allowfullscreen></iframe>
-    <p></p>
 
 Motivation
 ----------
@@ -22,9 +25,19 @@ what order.
 
 Here is a visualisation of the process of agreeing a simple ledger update between Alice and Bob:
 
-.. image:: resources/flow.gif
+.. only:: htmlmode
-   :scale: 25%
+
-   :align: center
+   .. image:: resources/flow.gif
+      :scale: 25%
+      :align: center
+
+
+.. only:: pdfmode
+
+   .. image:: resources/flow.png
+      :scale: 25%
+      :align: center
+
 
 The flow framework
 ------------------

docs/source/key-concepts-ledger.rst

@@ -6,12 +6,15 @@ The ledger
    * *The ledger is subjective from each peer's perspective*
    * *Two peers are always guaranteed to see the exact same version of any on-ledger facts they share*
 
-Video
+.. only:: htmlmode
------
+
-.. raw:: html
+   Video
+   -----
+   .. raw:: html
+   
+       <iframe src="https://player.vimeo.com/video/213812040" width="640" height="360" frameborder="0" webkitallowfullscreen mozallowfullscreen allowfullscreen></iframe>
+       <p></p>
 
-    <iframe src="https://player.vimeo.com/video/213812040" width="640" height="360" frameborder="0" webkitallowfullscreen mozallowfullscreen allowfullscreen></iframe>
-    <p></p>
 
 Overview
 --------

docs/source/key-concepts-node.rst

@@ -11,13 +11,16 @@ Nodes
 
    * *The node's functionality is extended by installing CorDapps in the plugin registry*
 
-Video
+.. only:: htmlmode
------
+
-.. raw:: html
+   Video
+   -----
+   .. raw:: html
+
+       <p><a href="https://vimeo.com/214168860">Corda Node, CorDapps and Network</a></p>
+       <iframe src="https://player.vimeo.com/video/214168860" width="640" height="360" frameborder="0" webkitallowfullscreen mozallowfullscreen allowfullscreen></iframe>
+       <p></p>
 
-    <p><a href="https://vimeo.com/214168860">Corda Node, CorDapps and Network</a></p>
-    <iframe src="https://player.vimeo.com/video/214168860" width="640" height="360" frameborder="0" webkitallowfullscreen mozallowfullscreen allowfullscreen></iframe>
-    <p></p>
 
 Node architecture
 -----------------

docs/source/key-concepts-notaries.rst

@@ -7,12 +7,15 @@ Notaries
    * *Notary clusters may optionally also validate transactions*
    * *A network can have several notary clusters, each running a different consensus algorithm*
 
-Video
+.. only:: htmlmode
------
+
-.. raw:: html
+    Video
+    -----
+    .. raw:: html
+    
+        <iframe src="https://player.vimeo.com/video/214138458" width="640" height="360" frameborder="0" webkitallowfullscreen mozallowfullscreen allowfullscreen></iframe>
+        <p></p>
 
-    <iframe src="https://player.vimeo.com/video/214138458" width="640" height="360" frameborder="0" webkitallowfullscreen mozallowfullscreen allowfullscreen></iframe>
-    <p></p>
 
 Overview
 --------

docs/source/key-concepts-oracles.rst

@@ -6,12 +6,15 @@ Oracles
    * *A fact can be included in a transaction as part of a command*
    * *An oracle is a service that will only sign the transaction if the included fact is true*
 
-Video
+.. only:: htmlmode
------
+
-.. raw:: html
+    Video
+    -----
+    .. raw:: html
+    
+        <iframe src="https://player.vimeo.com/video/214157956" width="640" height="360" frameborder="0" webkitallowfullscreen mozallowfullscreen allowfullscreen></iframe>
+        <p></p>
 
-    <iframe src="https://player.vimeo.com/video/214157956" width="640" height="360" frameborder="0" webkitallowfullscreen mozallowfullscreen allowfullscreen></iframe>
-    <p></p>
 
 Overview
 --------

docs/source/key-concepts-states.rst

@@ -7,12 +7,15 @@ States
    * *States are evolved by marking the current state as historic and creating an updated state*
    * *Each node has a vault where it stores any relevant states to itself*
 
-Video
+.. only:: htmlmode
------
+
-.. raw:: html
+   Video
+   -----
+   .. raw:: html
+   
+       <iframe src="https://player.vimeo.com/video/213812054" width="640" height="360" frameborder="0" webkitallowfullscreen mozallowfullscreen allowfullscreen></iframe>
+       <p></p>
 
-    <iframe src="https://player.vimeo.com/video/213812054" width="640" height="360" frameborder="0" webkitallowfullscreen mozallowfullscreen allowfullscreen></iframe>
-    <p></p>
 
 Overview
 --------

docs/source/key-concepts-time-windows.rst

@@ -7,12 +7,15 @@ Time-windows
    * *The notary is the timestamping authority, refusing to commit transactions outside of that window*
    * *Time-windows can have a start and end time, or be open at either end*
 
-Video
+.. only:: htmlmode
------
+
-.. raw:: html
+    Video
+    -----
+    .. raw:: html
+    
+        <iframe src="https://player.vimeo.com/video/213879314" width="640" height="360" frameborder="0" webkitallowfullscreen mozallowfullscreen allowfullscreen></iframe>
+        <p></p>
 
-    <iframe src="https://player.vimeo.com/video/213879314" width="640" height="360" frameborder="0" webkitallowfullscreen mozallowfullscreen allowfullscreen></iframe>
-    <p></p>
 
 Time in a distributed system
 ----------------------------
@@ -38,9 +41,19 @@ For this reason, times in transactions are specified as time *windows*, not abso
 there can never be "true time", only an approximation of it. Time windows can be open-ended (i.e. specify only one of
 "before" and "after") or they can be fully bounded.
 
-.. image:: resources/time-window.gif
+.. only:: htmlmode
-   :scale: 25%
+
-   :align: center
+   .. image:: resources/time-window.gif
+      :scale: 25%
+      :align: center
+
+
+.. only:: pdfmode
+
+   .. image:: resources/time-window.png
+      :scale: 25%
+      :align: center
+
 
 In this way, we express the idea that the *true value* of the fact "the current time" is actually unknowable. Even when
 both a before and an after time are included, the transaction could have occurred at any point within that time-window.

docs/source/key-concepts-transactions.rst

@@ -10,12 +10,15 @@ Transactions
      * *It is contractually valid*
      * *It is signed by the required parties*
 
-Video
+.. only:: htmlmode
------
+
-.. raw:: html
+   Video
+   -----
+   .. raw:: html
+   
+       <iframe src="https://player.vimeo.com/video/213879807" width="640" height="360" frameborder="0" webkitallowfullscreen mozallowfullscreen allowfullscreen></iframe>
+       <p></p>
 
-    <iframe src="https://player.vimeo.com/video/213879807" width="640" height="360" frameborder="0" webkitallowfullscreen mozallowfullscreen allowfullscreen></iframe>
-    <p></p>
 
 Overview
 --------