Add caption-corrected PDF/UA-1 and PDF/UA-2 source showcase

.gitattributes

@@ -157,3 +157,10 @@ docs/assets/accessible-showcase-alpha6/fonts/*.ttf binary
 examples/component-notebook-alpha6-r1/** text eol=lf
 docs/assets/component-notebook-alpha6-r1/** -text
 docs/assets/component-notebook-alpha6-r1/*.pdf binary
+
+# Alpha 7 source kits and both PDF/UA receipts retain identical bytes on every OS.
+examples/accessible-showcase-alpha7/** -text
+examples/accessible-showcase-alpha7/fonts/*.ttf binary
+docs/assets/accessible-showcase-alpha7/** -text whitespace=cr-at-eol
+docs/assets/accessible-showcase-alpha7/**/*.pdf binary
+docs/assets/accessible-showcase-alpha7/fonts/*.ttf binary

.github/workflows/docs.yml

@@ -21,7 +21,7 @@ jobs:
       fail-fast: false
       matrix:
         os: [ubuntu-latest, windows-latest]
-        channel: [alpha4, alpha5, alpha6]
+        channel: [alpha4, alpha5, alpha6, alpha7]
     steps:
       - uses: actions/checkout@v7
       - uses: actions/setup-python@v6
@@ -34,12 +34,24 @@ jobs:
           python tools/build_accessible_showcase.py --channel ${{ matrix.channel }}
           git diff --exit-code -- docs/assets/accessible-showcase${{ matrix.channel != 'alpha4' && format('-{0}', matrix.channel) || '' }}/project.zip docs/assets/accessible-showcase${{ matrix.channel != 'alpha4' && format('-{0}', matrix.channel) || '' }}/source.json
           python tools/verify_accessible_showcase.py --channel ${{ matrix.channel }} --out target/accessible-showcase
+
+      - name: Verify the PDF/UA-2 source specimen
+        if: matrix.channel == 'alpha7'
+        run: python tools/verify_accessible_showcase.py --channel alpha7 --pdf-profile pdfua2 --out target/accessible-showcase-pdfua2
       - uses: actions/upload-artifact@v4
         if: always()
         with:
           name: accessible-showcase-${{ matrix.channel }}-${{ matrix.os }}
           path: target/accessible-showcase/
           retention-days: 14
+
+      - name: Retain PDF/UA-2 source verification
+        if: always() && matrix.channel == 'alpha7'
+        uses: actions/upload-artifact@v7
+        with:
+          name: accessible-showcase-alpha7-${{ matrix.os }}-pdfua2
+          path: target/accessible-showcase-pdfua2/
+          retention-days: 14
   showcase-authoring:
     name: Showcase authoring comparison (${{ matrix.channel }}, ${{ matrix.os }})
     runs-on: ${{ matrix.os }}

docs/assets/accessible-showcase-alpha7/a11y-source.json

@@ -0,0 +1,9 @@
+{
+  "diagnostics": [],
+  "error_count": 0,
+  "errors": [],
+  "mode": "raise",
+  "ok": true,
+  "warning_count": 0,
+  "warnings": []
+}

docs/assets/accessible-showcase-alpha7/browser-verification.json

@@ -0,0 +1,51 @@
+{
+  "ok": true,
+  "browser": "155.0.8059.40",
+  "cases": [
+    {
+      "width": 1440,
+      "guide": true,
+      "download": true,
+      "pdf_hash": true,
+      "pdf_profiles": [
+        "pdfua1",
+        "pdfua2"
+      ],
+      "responsive_html": true,
+      "unstyled_html": true,
+      "keyboard_link": true
+    },
+    {
+      "width": 390,
+      "guide": true,
+      "download": true,
+      "pdf_hash": true,
+      "pdf_profiles": [
+        "pdfua1",
+        "pdfua2"
+      ],
+      "responsive_html": true,
+      "unstyled_html": true,
+      "keyboard_link": true
+    },
+    {
+      "width": 320,
+      "guide": true,
+      "download": true,
+      "pdf_hash": true,
+      "pdf_profiles": [
+        "pdfua1",
+        "pdfua2"
+      ],
+      "responsive_html": true,
+      "unstyled_html": true,
+      "keyboard_link": true
+    }
+  ],
+  "pdf_sha256": "faaf5e56e4bc962f4096d6a77deaad176266089548984eda7f45091339ba73d4",
+  "zip_sha256": "34b115996ede1274895cd0d81df39f37c65f5851ffbcb28dc09e52d9dd4087ca",
+  "pdfs": {
+    "pdfua1": "faaf5e56e4bc962f4096d6a77deaad176266089548984eda7f45091339ba73d4",
+    "pdfua2": "b38e8d6008c5474ba8b37ce952a9e65603c03d722390af3273ff048a59af0779"
+  }
+}

docs/assets/accessible-showcase-alpha7/fonts/DMSerifDisplay-OFL.txt

@@ -0,0 +1,93 @@
+Copyright 2014-2018 Adobe (http://www.adobe.com/), with Reserved Font Name 'Source'. All Rights Reserved. Source is a trademark of Adobe in the United States and/or other countries. Copyright 2019 Google LLC.
+
+This Font Software is licensed under the SIL Open Font License, Version 1.1.
+
+This license is copied below, and is also available with a FAQ at: http://scripts.sil.org/OFL
+
+
+-----------------------------------------------------------
+SIL OPEN FONT LICENSE Version 1.1 - 26 February 2007
+-----------------------------------------------------------
+
+PREAMBLE
+The goals of the Open Font License (OFL) are to stimulate worldwide
+development of collaborative font projects, to support the font creation
+efforts of academic and linguistic communities, and to provide a free and
+open framework in which fonts may be shared and improved in partnership
+with others.
+
+The OFL allows the licensed fonts to be used, studied, modified and
+redistributed freely as long as they are not sold by themselves. The
+fonts, including any derivative works, can be bundled, embedded,
+redistributed and/or sold with any software provided that any reserved
+names are not used by derivative works. The fonts and derivatives,
+however, cannot be released under any other type of license. The
+requirement for fonts to remain under this license does not apply
+to any document created using the fonts or their derivatives.
+
+DEFINITIONS
+"Font Software" refers to the set of files released by the Copyright
+Holder(s) under this license and clearly marked as such. This may
+include source files, build scripts and documentation.
+
+"Reserved Font Name" refers to any names specified as such after the
+copyright statement(s).
+
+"Original Version" refers to the collection of Font Software components as
+distributed by the Copyright Holder(s).
+
+"Modified Version" refers to any derivative made by adding to, deleting,
+or substituting -- in part or in whole -- any of the components of the
+Original Version, by changing formats or by porting the Font Software to a
+new environment.
+
+"Author" refers to any designer, engineer, programmer, technical
+writer or other person who contributed to the Font Software.
+
+PERMISSION & CONDITIONS
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of the Font Software, to use, study, copy, merge, embed, modify,
+redistribute, and sell modified and unmodified copies of the Font
+Software, subject to the following conditions:
+
+1) Neither the Font Software nor any of its individual components,
+in Original or Modified Versions, may be sold by itself.
+
+2) Original or Modified Versions of the Font Software may be bundled,
+redistributed and/or sold with any software, provided that each copy
+contains the above copyright notice and this license. These can be
+included either as stand-alone text files, human-readable headers or
+in the appropriate machine-readable metadata fields within text or
+binary files as long as those fields can be easily viewed by the user.
+
+3) No Modified Version of the Font Software may use the Reserved Font
+Name(s) unless explicit written permission is granted by the corresponding
+Copyright Holder. This restriction only applies to the primary font name as
+presented to the users.
+
+4) The name(s) of the Copyright Holder(s) or the Author(s) of the Font
+Software shall not be used to promote, endorse or advertise any
+Modified Version, except to acknowledge the contribution(s) of the
+Copyright Holder(s) and the Author(s) or with their explicit written
+permission.
+
+5) The Font Software, modified or unmodified, in part or in whole,
+must be distributed entirely under this license, and must not be
+distributed under any other license. The requirement for fonts to
+remain under this license does not apply to any document created
+using the Font Software.
+
+TERMINATION
+This license becomes null and void if any of the above conditions are
+not met.
+
+DISCLAIMER
+THE FONT SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO ANY WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT
+OF COPYRIGHT, PATENT, TRADEMARK, OR OTHER RIGHT. IN NO EVENT SHALL THE
+COPYRIGHT HOLDER BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+INCLUDING ANY GENERAL, SPECIAL, INDIRECT, INCIDENTAL, OR CONSEQUENTIAL
+DAMAGES, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+FROM, OUT OF THE USE OR INABILITY TO USE THE FONT SOFTWARE OR FROM
+OTHER DEALINGS IN THE FONT SOFTWARE.

docs/assets/accessible-showcase-alpha7/fonts/Inter-OFL.txt

@@ -0,0 +1,93 @@
+Copyright 2020 The Inter Project Authors (https://github.com/rsms/inter)
+
+This Font Software is licensed under the SIL Open Font License, Version 1.1.
+This license is copied below, and is also available with a FAQ at:
+https://scripts.sil.org/OFL
+
+
+-----------------------------------------------------------
+SIL OPEN FONT LICENSE Version 1.1 - 26 February 2007
+-----------------------------------------------------------
+
+PREAMBLE
+The goals of the Open Font License (OFL) are to stimulate worldwide
+development of collaborative font projects, to support the font creation
+efforts of academic and linguistic communities, and to provide a free and
+open framework in which fonts may be shared and improved in partnership
+with others.
+
+The OFL allows the licensed fonts to be used, studied, modified and
+redistributed freely as long as they are not sold by themselves. The
+fonts, including any derivative works, can be bundled, embedded,
+redistributed and/or sold with any software provided that any reserved
+names are not used by derivative works. The fonts and derivatives,
+however, cannot be released under any other type of license. The
+requirement for fonts to remain under this license does not apply
+to any document created using the fonts or their derivatives.
+
+DEFINITIONS
+"Font Software" refers to the set of files released by the Copyright
+Holder(s) under this license and clearly marked as such. This may
+include source files, build scripts and documentation.
+
+"Reserved Font Name" refers to any names specified as such after the
+copyright statement(s).
+
+"Original Version" refers to the collection of Font Software components as
+distributed by the Copyright Holder(s).
+
+"Modified Version" refers to any derivative made by adding to, deleting,
+or substituting -- in part or in whole -- any of the components of the
+Original Version, by changing formats or by porting the Font Software to a
+new environment.
+
+"Author" refers to any designer, engineer, programmer, technical
+writer or other person who contributed to the Font Software.
+
+PERMISSION & CONDITIONS
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of the Font Software, to use, study, copy, merge, embed, modify,
+redistribute, and sell modified and unmodified copies of the Font
+Software, subject to the following conditions:
+
+1) Neither the Font Software nor any of its individual components,
+in Original or Modified Versions, may be sold by itself.
+
+2) Original or Modified Versions of the Font Software may be bundled,
+redistributed and/or sold with any software, provided that each copy
+contains the above copyright notice and this license. These can be
+included either as stand-alone text files, human-readable headers or
+in the appropriate machine-readable metadata fields within text or
+binary files as long as those fields can be easily viewed by the user.
+
+3) No Modified Version of the Font Software may use the Reserved Font
+Name(s) unless explicit written permission is granted by the corresponding
+Copyright Holder. This restriction only applies to the primary font name as
+presented to the users.
+
+4) The name(s) of the Copyright Holder(s) or the Author(s) of the Font
+Software shall not be used to promote, endorse or advertise any
+Modified Version, except to acknowledge the contribution(s) of the
+Copyright Holder(s) and the Author(s) or with their explicit written
+permission.
+
+5) The Font Software, modified or unmodified, in part or in whole,
+must be distributed entirely under this license, and must not be
+distributed under any other license. The requirement for fonts to
+remain under this license does not apply to any document created
+using the Font Software.
+
+TERMINATION
+This license becomes null and void if any of the above conditions are
+not met.
+
+DISCLAIMER
+THE FONT SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO ANY WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT
+OF COPYRIGHT, PATENT, TRADEMARK, OR OTHER RIGHT. IN NO EVENT SHALL THE
+COPYRIGHT HOLDER BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+INCLUDING ANY GENERAL, SPECIAL, INDIRECT, INCIDENTAL, OR CONSEQUENTIAL
+DAMAGES, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+FROM, OUT OF THE USE OR INABILITY TO USE THE FONT SOFTWARE OR FROM
+OTHER DEALINGS IN THE FONT SOFTWARE.

docs/assets/accessible-showcase-alpha7/guide-unstyled.html

@@ -0,0 +1 @@
+<!doctype html><html lang="en-US"><head><meta charset="utf-8"><title>Common Ground: A place to grow, a place to belong</title></head><body><main><section class="sheet cover" data-fb-id="n1"><p class="brand" data-fb-id="n2">Common Ground</p><p class="eyebrow" data-fb-id="n3">Community field guide / Autumn 2026</p><h1 class="cover-title" data-fb-id="n4">A place to grow.<br data-fb-id="n5">A place to belong.</h1><p class="intro" data-fb-id="n6">Good things happen when we make a little room for one another. Come for a quiet hour, a shared meal or something new to learn.</p><img src="garden.svg" alt="Illustration of a shared garden: three raised planting beds beside a broad, level path, with a bench and a greenhouse." class="garden" data-fb-id="n7"><h2 data-fb-id="n8">Find your starting point</h2><div class="programs" data-fb-id="n9"><section class="program-card" data-fb-id="n10"><h3 data-fb-id="n11">Grow something</h3><p data-fb-id="n12">A few seeds. A pair of hands. A garden we tend together.</p></section><section class="program-card" data-fb-id="n13"><h3 data-fb-id="n14">Share a table</h3><p data-fb-id="n15">Pull up a chair for conversation and a warm bowl of soup.</p></section><section class="program-card" data-fb-id="n16"><h3 data-fb-id="n17">Make it last</h3><p data-fb-id="n18">Swap a skill, mend a favorite thing or try a small project.</p></section></div><div class="welcome" data-fb-id="n19"><h2 data-fb-id="n20">Every visit starts with hello</h2><p data-fb-id="n21">All sessions are free. No membership, equipment or experience is needed. Come on your own or bring someone with you.</p></div></section><section class="sheet details" data-fb-id="n22"><p class="eyebrow" data-fb-id="n23">Your next Saturday</p><h2 class="page-title" data-fb-id="n24">Make room for a good day.</h2><p class="intro" data-fb-id="n25">Stay for one session or linger a little longer. You decide how to take part.</p><table class="schedule" data-fb-id="n26"><caption data-fb-id="n27">Autumn 2026 · Weekly sessions at the Common Ground garden</caption><thead data-fb-id="n28"><tr data-fb-id="n29"><th scope="col" data-fb-id="n30">Program</th><th scope="col" data-fb-id="n31">When</th><th scope="col" data-fb-id="n32">What to expect</th></tr></thead><tbody data-fb-id="n33"><tr data-fb-id="n34"><td data-fb-id="n35"><strong data-fb-id="n36">Garden together</strong></td><td data-fb-id="n37">Saturdays, 10–11:30 am</td><td data-fb-id="n38">Plant, water or harvest. Seated tasks are available.</td></tr><tr data-fb-id="n39"><td data-fb-id="n40"><strong data-fb-id="n41">The shared table</strong></td><td data-fb-id="n42">Saturdays, noon–1 pm</td><td data-fb-id="n43">Bring your lunch or share the seasonal soup. Ingredients are listed.</td></tr><tr data-fb-id="n44"><td data-fb-id="n45"><strong data-fb-id="n46">Make &amp; mend</strong></td><td data-fb-id="n47">First Saturday, 2–3:30 pm</td><td data-fb-id="n48">Bring a small repair or try a simple craft. Materials are provided.</td></tr></tbody></table><h2 data-fb-id="n49">Plan a comfortable visit</h2><div class="visit" data-fb-id="n50"><section data-fb-id="n51"><h3 data-fb-id="n52">An easy arrival</h3><ul data-fb-id="n53"><li data-fb-id="n54">Enter through the wide gate beside the greenhouse.</li><li data-fb-id="n55">The main path is firm and level. Seating is available along the way.</li><li data-fb-id="n56">A welcome volunteer can show you the garden and the accessible restroom.</li></ul></section><section data-fb-id="n57"><h3 data-fb-id="n58">Choose your pace</h3><ul data-fb-id="n59"><li data-fb-id="n60">Take part seated or standing, or simply watch.</li><li data-fb-id="n61">Use the quiet corner whenever you would like a break.</li><li data-fb-id="n62">Ask for written instructions or a demonstration. Both are welcome.</li></ul></section></div><div class="closing" data-fb-id="n63"><h2 data-fb-id="n64">A small first step is enough</h2><p data-fb-id="n65">You do not have to know anyone, know what to say or stay all day. There is a place for you here.</p></div><section class="about" data-fb-id="n66"><h2 data-fb-id="n67">About this guide</h2><p data-fb-id="n68">Common Ground and its programs are fictional. This sample shows how a thoughtfully designed document can carry its structure into PDF and HTML.</p><p data-fb-id="n69"><a href="https://docs.fullbleed.dev/" data-fb-id="n70">Fullbleed documentation: docs.fullbleed.dev</a></p></section></section></main></body></html>