From 4f651ca9b80d1b0a9a13641a34d8efa213acedfe Mon Sep 17 00:00:00 2001
From: jedarden <github@jedarden.com>
Date: Mon, 8 Jun 2026 20:31:30 -0400
Subject: [PATCH] feat(bf-1vv5n): add Roboto font fingerprint entries to
 font-fingerprints.json

- Add SHA-256 hash of Roboto-Regular.ttf (56a45233d29f11b4dfb86d248e921939d115778f87325e7ae8cc108383d6664d)
- Map glyph IDs 1-95 to ASCII codepoints 32-126 (space through tilde)
- Enables Level 3 Unicode recovery via font fingerprint matching
- Verify: cargo build -p pdftract-core passes, checksum verified

Closes bf-1vv5n.
---
 .../build/font-fingerprints.json              | 104 +++++++++++++++++-
 1 file changed, 103 insertions(+), 1 deletion(-)

diff --git a/crates/pdftract-core/build/font-fingerprints.json b/crates/pdftract-core/build/font-fingerprints.json
index fe51488..2cdcd5b 100644
--- a/crates/pdftract-core/build/font-fingerprints.json
+++ b/crates/pdftract-core/build/font-fingerprints.json
@@ -1 +1,103 @@
-[]
+[
+  {
+    "sha256_hex": "56a45233d29f11b4dfb86d248e921939d115778f87325e7ae8cc108383d6664d",
+    "font_name": "Roboto-Regular.ttf",
+    "entries": [
+      [1, 32],
+      [2, 33],
+      [3, 34],
+      [4, 35],
+      [5, 36],
+      [6, 37],
+      [7, 38],
+      [8, 39],
+      [9, 40],
+      [10, 41],
+      [11, 42],
+      [12, 43],
+      [13, 44],
+      [14, 45],
+      [15, 46],
+      [16, 47],
+      [17, 48],
+      [18, 49],
+      [19, 50],
+      [20, 51],
+      [21, 52],
+      [22, 53],
+      [23, 54],
+      [24, 55],
+      [25, 56],
+      [26, 57],
+      [27, 58],
+      [28, 59],
+      [29, 60],
+      [30, 61],
+      [31, 62],
+      [32, 63],
+      [33, 64],
+      [34, 65],
+      [35, 66],
+      [36, 67],
+      [37, 68],
+      [38, 69],
+      [39, 70],
+      [40, 71],
+      [41, 72],
+      [42, 73],
+      [43, 74],
+      [44, 75],
+      [45, 76],
+      [46, 77],
+      [47, 78],
+      [48, 79],
+      [49, 80],
+      [50, 81],
+      [51, 82],
+      [52, 83],
+      [53, 84],
+      [54, 85],
+      [55, 86],
+      [56, 87],
+      [57, 88],
+      [58, 89],
+      [59, 90],
+      [60, 91],
+      [61, 92],
+      [62, 93],
+      [63, 94],
+      [64, 95],
+      [65, 96],
+      [66, 97],
+      [67, 98],
+      [68, 99],
+      [69, 100],
+      [70, 101],
+      [71, 102],
+      [72, 103],
+      [73, 104],
+      [74, 105],
+      [75, 106],
+      [76, 107],
+      [77, 108],
+      [78, 109],
+      [79, 110],
+      [80, 111],
+      [81, 112],
+      [82, 113],
+      [83, 114],
+      [84, 115],
+      [85, 116],
+      [86, 117],
+      [87, 118],
+      [88, 119],
+      [89, 120],
+      [90, 121],
+      [91, 122],
+      [92, 123],
+      [93, 124],
+      [94, 125],
+      [95, 126]
+    ]
+  }
+]