Fonts used in RedactNinja email PDFs (in /fonts). They are downloaded from this site only
when an email needs them, and are embedded (subset) in the PDFs the app writes.

LiberationSans-Regular.ttf      Liberation Sans, Red Hat, SIL Open Font Licence 1.1 (LIBERATION-FONTS-LICENSE.txt)
IBMPlexSansArabic-Regular.woff  IBM Plex Sans Arabic, IBM Corp., SIL OFL 1.1 (IBM-PLEX-SANS-ARABIC-LICENSE-OFL.txt)
NotoSansHebrew-Regular.ttf      Noto Sans Hebrew, The Noto Project Authors, SIL OFL 1.1 (NOTO-FONTS-LICENSE-OFL.txt)
NotoSansDevanagari-Regular.ttf  Noto Sans Devanagari, The Noto Project Authors, SIL OFL 1.1
HindSiliguri-Bengali-Regular.woff  Hind Siliguri (Bengali characters), Indian Type Foundry, SIL OFL 1.1
                                (HIND-SILIGURI-LICENSE-OFL.txt)
NotoSansGurmukhi-Regular.ttf    Noto Sans Gurmukhi, The Noto Project Authors, SIL OFL 1.1
NotoSansGujarati-Regular.ttf    Noto Sans Gujarati, The Noto Project Authors, SIL OFL 1.1
NotoSansTamil-Regular.ttf       Noto Sans Tamil, The Noto Project Authors, SIL OFL 1.1
NanumGothic-Regular.ttf         Nanum Gothic, NHN Corporation, SIL OFL 1.1 (NANUM-GOTHIC-LICENSE-OFL.txt)
DroidSansFallbackFull.ttf       Droid Sans Fallback, The Android Open Source Project, Apache License 2.0
                                (DROID-SANS-FALLBACK-NOTICE.txt)

Sources: github.com/notofonts/notofonts.github.io, github.com/google/fonts (ofl/nanumgothic),
android.googlesource.com platform/frameworks/base data/fonts (tag android-4.4_r1), the npm
packages @ibm/plex-sans-arabic 1.1.0 (fonts/complete/woff) and @fontsource/hind-siliguri 5.3.0
(files/hind-siliguri-bengali-400-normal.woff, renamed).
The font files are unchanged.